Low Thermal E.M.F. Binding Post TBP3 - Page 1
Forum section: electronics / general

author: branadic
author_rank: Super Contributor
timestamp: December 29, 2022, 09:25:26 pm
content: Hi everyone,I intentionally wanted to post this as a xmas surprise, but it took me a little longer to complete and approve the datasheet.After my failed attempt to get PK4T binding post re-manufactured by MC Stäubli, I'm now happy to announce that there are new low thermal e.m.f. binding posts available.I'm organizing the EU group order, so only one person has to deal with customs. Please find attached the datasheet for the posts. You can choose between bare copper or Ni/Au plating, between black and gray body and between different colors for the insert.TBP3-A-B-XXA = 0, CuTeA = 1, CuTe with Ni/Au platingB = 0, Black InsulationB = 1, Gray InsulationXX = 00, Black insertXX = 01, White insertXX = 02, Red insertXX = 03, Blue insertXX = 04, Green insertThe prices are as followed:TBP3-0-x-xx$18,50TBP3-1-x-xx$20,00Please add to that customs, VAT and shipping costs.You want to get your hands on posts? Then send me a PM with a valid name, nickname, mail address and which posts you want in what quantity. Here an example:name: Dave Examplenickname: DaveExamplemail address: dave@example.com2x TBP3-0-0-02 (pure copper, black body, red insert)2x TBP3-0-1-00 (pure copper, grey body, black insert)2x TBP3-1-0-02 (gold plated, black body, red insert)2x TBP3-1-1-00 (gold plated, grey body, black insert)-branadic-

author: sahko123
author_rank: Frequent Contributor
timestamp: December 30, 2022, 12:00:24 am
content: finally the binding posts of mywetdreams.do you have a link to the supplier?

author: laichh
author_rank: Regular Contributor
timestamp: December 30, 2022, 03:02:39 am
content: The pitch between adjacent binding post must be as little as 0.75" (19.05 mm) in order to "comply" with the Multimeter/Calibrator tradition.

author: Villain
author_rank: Regular Contributor
timestamp: December 30, 2022, 04:31:02 am
content: Hi branadic,Thanks a lot for organizing. PM sent.

author: branadic
author_rank: Super Contributor
timestamp: December 30, 2022, 09:27:23 am
content: The binding posts were designed by an eevblog forum member located in Asia and are manufactured there too, so there is no supplier link.I'm just organizing the group order, will import the posts to EU with VAT and customs and will send them from here to everyone located in EU.A pitch of 19.05 mm is no problem, I received this neat little demoboard showing a pitch of 19.05 mm with the backlight turned on.-branadic-

author: jaromir
author_rank: Unknown
timestamp: December 30, 2022, 01:18:16 pm
content: Hello, I'm considering joining this group buy. I have a few questions:1, when is deadline for joining?2, is this one time deal, or is there optiom for future orders?

author: Echo88
author_rank: Frequent Contributor
timestamp: December 30, 2022, 02:36:34 pm
content: Backlit posts, were joining fancy Fluke 5730A territory.Thanks for organizing the groupbuy.Now, how many should i get...

author: branadic
author_rank: Super Contributor
timestamp: December 30, 2022, 02:58:18 pm
content: 1. Let's say deadline is the end of January 2023.2. There is the option to re-order them in the future, but assume a one buy order organized by me for the moment. If everything moves straight and smooth I'm tempted to organize future orders too, but don't quote me on that for now.-branadic-

author: mendip_discovery
author_rank: Super Contributor
timestamp: December 31, 2022, 10:15:56 pm
content: Are you ok with posting to evil Brits in the UK?

author: branadic
author_rank: Super Contributor
timestamp: January 01, 2023, 10:05:45 am
content: In principle yes, but take additional customs + VAT into account. If more members from UK are joining it is possible to send the UK order to a single person who organizes the shipping within UK.-branadic-

author: sahko123
author_rank: Frequent Contributor
timestamp: January 07, 2023, 07:45:46 pm
content: Are there expected to be price breaks once all the orders are in?

author: branadic
author_rank: Super Contributor
timestamp: January 08, 2023, 11:59:57 am
content: Don't expect dozens of forum members ordering huge quantities in total. For the moment I only received four messages from people ordering one or the other post. However, if the quantities vastely increase and I get a discount I will include it to the final costs, sure.-branadic-

author: Olivia
author_rank: Regular Contributor
timestamp: January 09, 2023, 05:57:43 am
content: Is there any information on the current rating of the binding posts?I couldn´t seem to find it in the datasheet.CheersOle

author: branadic
author_rank: Super Contributor
timestamp: January 10, 2023, 08:32:59 am
content: Wasn't yet measured, hence why it is not specified, but similar performance like Fluke or Low Thermal 2758 is to be expected, which have no specification either-branadic-

author: laichh
author_rank: Regular Contributor
timestamp: January 11, 2023, 02:04:04 am
content: IET Labs BP-1000 is rated for 30 A.https://www.ietlabs.com/pdf/Datasheets/BP-1000.pdf

author: branadic
author_rank: Super Contributor
timestamp: January 11, 2023, 05:29:31 pm
content: Similar values can be found for a few other binding posts such as Stäubli PK4-T(S). Not sure if that was ever measured or if that is a real limit, it's at least what is guaranteed.-branadic-

author: MegaVolt
author_rank: Frequent Contributor
timestamp: January 12, 2023, 01:52:37 pm
content: Quote from: branadic on December 30, 2022, 09:27:23 amHow is the backlight set up? Do you have detailed photos?

author: mendip_discovery
author_rank: Super Contributor
timestamp: January 12, 2023, 06:24:52 pm
content: Quote from: MegaVolt on January 12, 2023, 01:52:37 pmThere are a few pics in the pdf uploaded including some drawings. Branadic had a little test thing so he might get some nicer pics of them.

author: branadic
author_rank: Super Contributor
timestamp: January 12, 2023, 07:01:04 pm
content: Attached is an image of how it's realized compared to the drawing in the datasheet.-branadic-

author: bastl_r
author_rank: Regular Contributor
timestamp: January 12, 2023, 07:43:01 pm
content: HiWhat kind of solder is recomned for the bindingposts?Or is it better to connect them with copper spade lugs?Regards bastl_r

author: branadic
author_rank: Super Contributor
timestamp: January 16, 2023, 09:23:47 pm
content: You can either use a solder of your choice or o-ring lugs.-branadic-

author: JK21
author_rank: Contributor
timestamp: January 21, 2023, 03:14:24 pm
content: The first binding posts have arrived.Below the screw connection, I filed something down at the intended soldering point. It really does appear to be the material described in the spec sheet and has a copper shimmer.The plastic also makes a good and stable, not so brittle impression.Anyway, they look good!I also ordered some cable lugs. With these, too, there is a discrepancy between the opening width at the front and the wire diameter required for our measuring cables. Please consider the strange numbering in the AWG system - smaller numbers mean larger diameters! I ordered T3.5-6 14-12 and should have taken 22-16When I build the first cable I'll have to see how it works. The only thing left here is soldering, not crimping.

author: Sprock
author_rank: Contributor
timestamp: January 21, 2023, 05:17:18 pm
content: Have the LowThermal E.M.F. Binding Post TBP 3 also received in the meantime.To my surprise, they turned out very well and were packaged well.A big thank you to Branadic for offering these parts to the community.regards Sprock

author: DavidKo
author_rank: Frequent Contributor
timestamp: January 25, 2023, 11:27:34 am
content: Mine had also come, but I need to check them in detail. I have noticed that there are accessories later when reading the datasheet (after the order). If everything will go like I want I will make some comparison to Pomona 3770.branadicThere is also the possibility to order the accessories mentioned in datasheet?

author: branadic
author_rank: Super Contributor
timestamp: January 25, 2023, 05:04:30 pm
content: The ordering numbers for the accessories are given in the datasheet and can be ordered, yes.-branadic-

author: DavidKo
author_rank: Frequent Contributor
timestamp: January 25, 2023, 08:26:34 pm
content: Maybe you can mention the possibility of accessories ordering in the first post. I have been ordering it without checking the end of the datasheet and even then I was not sure if it is the option or only remark in datasheet. It will be good to add/correct nut in accessories, I do not see any use of #8-32 nut (except for Pomona posts). Maybe the washers can be added.Few pictures below.When I compare them to Pomona 3770 (difference in color is given by fact that Pomona is gold plated and mine TBP3 is without any surface treatment):Both have very good finishTBP3 have post and captive thumb nut from CuTe, Pomona only post - based on datasheetNuts are from copper, Pomona have nickel plated brassOnly one piece of washer and nut in Pomona setPomona uses #8-32 nut (poor quality), TBP3 is metric (checked)TBP3 can be used in thin panels - without D-insert or smaller hole, when the panel is thinner than cca 0.34mm based on my measurementPomona secure the post in the hole only in small depth and requires minimum thickness of the panel (or file the mounting base)TBP3 have better counter rotation fixation (with remark below) and is completely insulated in the hole - nothing like burr cannot get in touch with the metal part of the postI forgot to mention that Pomona should be gold directly on CuTe, TBP3 should use Ni/Au - I chose the one without platingMy personal conclusion is that TBP3 are better quality and more robust. The hole in the color ring of the captive nut is big enough for all bananas that I have at home and they go freely through.Edit: Alternative fixation proposal in thepost.

author: branadic
author_rank: Super Contributor
timestamp: January 26, 2023, 05:43:14 pm
content: First of all, please place your questions here, so I only have to answer once and not individually, thanks.The spade lugs are only available in bare copper.No, there is no brass version of the binding posts available.Yes, the threat on the binding post is metric (M4), not imperial.Please find the price per unit for the asseccories below:Spade lug 12-14 T2 Copper $1,00Spade lug 22-16 T2 Copper $0,60O ring tongue 16-22 T2 Copper $0,60#8-32 T2 Copper Hex Nuts $1,00DavidKoThe posts are as they are, I haven't designed them, I just help with the EU group buy. What I can comment: In some cases you don't need the light guide, but need the space due to front panel thickness, this is why you have both D-shaped tubes in the set.-branadic-

author: DavidKo
author_rank: Frequent Contributor
timestamp: January 26, 2023, 07:19:08 pm
content: Sorry for confusion, my idea was to propose alternative fixing concept to the one in datasheet. My proposal use smaller hole with the spacer as fixation part. I have made a sketch for that use case, but I'm not sure with the dimensions of the hole. I hope that the alternative fixation concept is understandable from the picture - the spacer is in blue.When I read it again I think that the text is too many words to the idea which I want to say (I have modified it).

author: branadic
author_rank: Super Contributor
timestamp: January 26, 2023, 07:27:47 pm
content: I got you, however I don't see the benefit. As I already mentioned, the posts are designed to be used with or without light guide, hence both D-shaped tubes in the set. Both use the very same size D-shaped hole. If you want to mount the posts differently feel free.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: January 31, 2023, 06:43:37 am
content: RemainderOnly a few hours left before the window for the group order closes.-branadic-

author: ddrl46
author_rank: Regular Contributor
timestamp: January 31, 2023, 07:53:59 am
content: Quote from: branadic on January 31, 2023, 06:43:37 amI sent a PM to join the group order a while ago, I didn’t get a confirmation yet so I wonder if you got it?

author: DH7DN
author_rank: Regular Contributor
timestamp: January 31, 2023, 08:50:32 am
content: Quote from: ddrl46 on January 31, 2023, 07:53:59 amSame here, no confirmation yet...

author: Olivia
author_rank: Regular Contributor
timestamp: January 31, 2023, 09:30:33 am
content: Hopefully my order came in in time

author: branadic
author_rank: Super Contributor
timestamp: January 31, 2023, 06:34:37 pm
content: I do understand the need to feel like a customer, everyone individually being treated and contacted be me, but I'm employed and organize that group order in my spare time. If you have sent a PM, as I asked for in the first post, be certain that your message arrived and that you are on the list.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 01, 2023, 08:11:08 am
content: The group order is now closed and the group order was placed. I get back to you once I know more.-branadic-

author: Ismsanmar
author_rank: Regular Contributor
timestamp: February 05, 2023, 01:03:59 pm
content: FLooks like I'm 5 days late. If another group buy occurs, keep me in mind, although from what I have read it seems that there are few possibilities.

author: sahko123
author_rank: Frequent Contributor
timestamp: February 05, 2023, 05:08:38 pm
content: Is it likely these posts will eventually make there way onto taobao or aliexpress? Seeing how there is already the TBP2 on taobao

author: branadic
author_rank: Super Contributor
timestamp: February 05, 2023, 08:00:56 pm
content: If you refer to thesepostsI didn't knew them before. I simply don't know if the TBP3 will show up elsewhere.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 11, 2023, 10:02:23 am
content: Quick update:The package is on its way to me and should arrive soon.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 12, 2023, 01:16:04 pm
content: I'm happy to share the 3D-CAD file of the binding posts today.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 16, 2023, 05:54:55 pm
content: The package with the binding posts arrived today. It will take me some time to sort it all up and contact you, but I'm in the processStay tuned and watch your mail account.-brandic-

author: branadic
author_rank: Super Contributor
timestamp: February 22, 2023, 10:30:25 am
content: First packages were sent yesterday and some of them should already arrive today.-branadic-

author: Echo88
author_rank: Frequent Contributor
timestamp: February 22, 2023, 05:09:25 pm
content: I got mine today, they are beautiful

author: mendip_discovery
author_rank: Super Contributor
timestamp: February 22, 2023, 08:02:52 pm
content: Quote from: Echo88 on February 22, 2023, 05:09:25 pmI got some in the first batch and I agree they are rather pretty. Thanks to Branadic for doing the cat hoarding.I have some pictures of the spade and ring connectors if anyone is interested.

author: balun
author_rank: Newbie
timestamp: February 22, 2023, 10:13:14 pm
content: Damn, missed group order again :-(

author: DH7DN
author_rank: Regular Contributor
timestamp: February 23, 2023, 07:42:23 pm
content: Thanks @branadic, I'm really satisfied with the binding posts. Will be a nice metrology project

author: alex-sh
author_rank: Regular Contributor
timestamp: February 23, 2023, 10:11:37 pm
content: I have missed it .... again@branadic - when is another group buy?

author: sahko123
author_rank: Frequent Contributor
timestamp: February 23, 2023, 10:57:47 pm
content: wow looks like the plastic moulding is even cleaner then i expected cant wait to receive mine

author: Olivia
author_rank: Regular Contributor
timestamp: February 24, 2023, 06:26:00 am
content: My Package came in yesterday aswell, they look even better than I had imagined.

author: alm
author_rank: Super Contributor
timestamp: February 24, 2023, 01:34:20 pm
content: Mine came today. They look great indeed. Thanks a lot for doing all this work, branadic!

author: mendip_discovery
author_rank: Super Contributor
timestamp: February 24, 2023, 05:25:41 pm
content: Here are some pictures of the lugs and ring terminals.Nice pure copper.Note: Due to the limitations of using a vernier calliper to measure small holes please give some leeway to the measurements. They are all approx.

author: opa627bm
author_rank: Regular Contributor
timestamp: February 25, 2023, 01:44:05 am
content: IS the group order still open ?

author: branadic
author_rank: Super Contributor
timestamp: February 26, 2023, 10:29:21 am
content: No it's not, but I have a few gold plated gray and pure copper as well as gold plated black posts left, just in case.-branadic-

author: cat87
author_rank: Regular Contributor
timestamp: March 15, 2023, 05:27:11 pm
content: Hi everyone,I got my binding posts a while back, but thought I'd use them for a while before putting into words what I think about these.So, short story long, I got a Solartron 7081 from a benevolent friend and of course, it came with the front Fischer connector ( the dmm, not the friend)And because Reps had done a similar conversion to this, I thought the posts I got might be ideal for this situation.The materials are really nice on the posts and the finish on the metal is OK. The plastic is much nicer than the Pomona posts, so that'a a real nice win.The screws are all nicely done and nothing wobbles or feels loose.The plastic spacers are basicallt press fir into the holes in the front panel, and though I applied quite some force to them, they did not warp or distort. Only thing to watch out for is that any mechanical work on these should be done with a a file, hacksaw, dremel, but NOT with side cutters like I did, because then the plastic just cracks. Lesson learnedHope this will be of help to people

author: aronake
author_rank: Frequent Contributor
timestamp: March 28, 2023, 03:18:59 pm
content: Quote from: sahko123 on February 05, 2023, 05:08:38 pmhttps://item.taobao.com/item.htm?spm=a1z10.5-c-s.w4002-23305896302.13.9d232402qEFccl&id=706702482964

author: aronake
author_rank: Frequent Contributor
timestamp: March 28, 2023, 03:21:57 pm
content: What is the expert panels verdict? With or without plating for this kind of binding posts?It seems to me plating have the benefit of not oxidizing, but slightly worse EMF.No plating somewhat better EMF, but if oxidized turn into an EMF disaster.How quick do enough oxidation to be a problem build up? How frequent to clean and with what?

author: Kleinstein
author_rank: Super Contributor
timestamp: March 28, 2023, 05:50:53 pm
content: Neither plating nor oxidation are that bad when it comes to thermal EMF: the layer is very thin and thus very little temperature drop across the surface layer. One usually still needs to keep thermal gradients low, as even just a plain copper wire can show thermal EMF, as mechanical deformation can also effect ther thermopower. I would more worry about thermal gradients at bend wires than the surface layers.The oxide may be the larger problem: not because of thermal EMF, but because of contact resistance and a possible not that well defined contact position (it is no clear how even the oxide layer is).

author: Kosmic
author_rank: Super Contributor
timestamp: December 04, 2023, 04:40:02 am
content: So I decided to try my luck with the seller on Taobao.I used Taobao before to get some spade lugs so I had some experience. But, I don't speak nor can read Chinese so it's always a challenge and I rely heavily on translators.For those of you that never used Taobao, in a nutshell the way it's working is when you buy something from a seller it's consolidated by Taobao and when you are ready you pay the shipping for everything you accumulated and they send you everything in 1 package.Normally you can pay everything with your credit card but this time things changed a bit. So I had no problem paying for the items but when it's time to pay for the final consolidated shipping,now alipay don't take foreign credit card anymoreFortunately there's a workaround. You need to pay with the Taobao app which is entirely in ChineseSo I had to find a second cellphone to translate the app on my main cellphone to pay for the final shipping (normally I simply use the web site with a auto translator)Anyway, in the end all went well, I was able to pay for everything and I received my packageThey even included the leds and some copper ring lugs.And some spare parts

author: laichh
author_rank: Regular Contributor
timestamp: December 04, 2023, 05:36:07 am
content: Apparently they also make a Pomona 3770 clone and name it TBP2.https://item.taobao.com/item.htm?spm=a312a.7700824.w4002-23305896296.11.28516517cq9BMj&id=595625345633

author: DavidKo
author_rank: Frequent Contributor
timestamp: December 04, 2023, 07:28:40 am
content: They are available quite a long time, but the pricing is similar to Pomona's original. At least last time whey I had checked.

author: Ismsanmar
author_rank: Regular Contributor
timestamp: December 04, 2023, 11:25:26 am
content: The problem with Taobao is that they don't send to Europe since 2021, when the IOSS system was implemented. You have to go through an agent, and yet, in the end you end up with the same price as if you bought the LowThermal directly.I asked a seller on aliexpress if he could sell those TBP3 as I bought from him some TBP2, but the same problem arises with the price.aliexpress.com/item/1005005496017446.htmlI'm looking to buy 16 units, but the difference between the price offered by branadic and what those sellers offer is too big.

author: deepfryed
author_rank: Unknown
timestamp: December 04, 2023, 11:59:31 am
content: Quote from: Ismsanmar on December 04, 2023, 11:25:26 amWow, that's quite a markup. I've always wondered how much of a difference it'll make, I might get some C11000 from a local supplier and try turning a few binding posts. I've got a couple of LT1021s in the parts bin, thinking of making a 10V, 1V and 100mV reference box for funsies.

author: DavidKo
author_rank: Frequent Contributor
timestamp: December 04, 2023, 12:18:59 pm
content: Quote from: Ismsanmar on December 04, 2023, 11:25:26 amI'm not sure, but last time I have checked TBP2 the price was same as today (~$30). The price on Digikey or Mouser for original Pomona 3770 is $13 and both are shipping world wide. So I do not see any reason to buy knock off for double the price.TBP3 are different. The Fluke terminals are not commonly available.

author: Ismsanmar
author_rank: Regular Contributor
timestamp: December 04, 2023, 01:18:53 pm
content: Quote from: DavidKo on December 04, 2023, 12:18:59 pmI bought them for $14.71 each, including the discount coupons. At that time, they were $18.37, but when they arrived, the seller raised them to the $30 they cost now. It seems that the sale he made to me was not worth it.The price of the Pomona is without VAT (and shipping if you don't reach the minimum for it to be free), and then you have to take into account that they have brass and steel parts, and that they don't offer the option of copper without plating. On the TBP2, all the parts are made of copper, washers and nuts included.

author: Kosmic
author_rank: Super Contributor
timestamp: December 04, 2023, 02:35:42 pm
content: Quote from: DavidKo on December 04, 2023, 12:18:59 pmTBP2 are 9.53$ US on taobaohttps://world.taobao.com/item/595625345633.htmPomona 3770 are around 12-13$ US on Digikey.Not a big difference but still cheaper.

author: laichh
author_rank: Regular Contributor
timestamp: December 05, 2023, 02:01:50 am
content: Found another seller on Taobao selling low thermal emf binding post.https://world.taobao.com/dianpu/70023207.htm

author: sahko123
author_rank: Frequent Contributor
timestamp: December 05, 2023, 08:26:18 pm
content: this is the guy i bulk buy my spade connectors, those 20yuan 3ish euro connectors are SOOO much cheaper than the ones i got during that first bulk buy

author: deepfryed
author_rank: Unknown
timestamp: December 05, 2023, 10:52:00 pm
content: Nice find, Taobao makes it so hard though. I wish they supported international purchasers like Aliexpress do.

author: deepfryed
author_rank: Unknown
timestamp: December 06, 2023, 06:04:54 am
content: I can see why people complain about machining copperI started prototyping one and may have to make the binding post slightly oversized because pure copper is sticky as heck and not very strong. Wondering if the added thermal mass is going to be an issue.

author: aronake
author_rank: Frequent Contributor
timestamp: December 06, 2023, 06:07:09 am
content: I used to use the taobao TBP2, but then found these, which is my standard connector now:https://item.taobao.com/item.htm?spm=a1z09.2.0.0.36252e8d1EdBBD&id=40823926055&_u=62lgsmeg6d51Seems to be copper, around half price compared to TBP2 (4 USD each) and slightly smaller, which I see as a benefit.

author: deepfryed
author_rank: Unknown
timestamp: December 15, 2023, 07:02:54 am
content: Finally had some free time to nearly finish my DIY pure copper C110 binding posts. I just need to make some plastic (ptfe) knob bits later.Total cost ~$10 in materials and a couple of hours on the lathe.

author: MiDi
author_rank: Frequent Contributor
timestamp: February 02, 2025, 07:52:33 pm
content: Are TBP3 still available and if where to buy?

author: aronake
author_rank: Frequent Contributor
timestamp: February 03, 2025, 07:45:42 am
content: Quote from: MiDi on February 02, 2025, 07:52:33 pmThey can be found here:https://item.taobao.com/item.htm?abbucket=12&id=706702482964

author: picburner
author_rank: Frequent Contributor
timestamp: February 03, 2025, 09:00:54 am
content: Some time ago they were also sold on Aliexpress which, for those who buy from Europe is less complicated than Taobao, but currently if I try the link I had then it tells me that the item is not for sale in my region.

author: branadic
author_rank: Super Contributor
timestamp: February 05, 2025, 06:15:27 am
content: Hi,I will organize another group buy,DEADLINE 28th FEBURARY 2025.TBP3-A-B-XXA = 0, CuTeA = 1, CuTe with Ni/Au platingB = 0, Black InsulationB = 1, Gray InsulationXX = 00, Black insertXX = 01, White insertXX = 02, Red insertXX = 03, Blue insertXX = 04, Green insertThe prices are as followed:TBP3-0-x-xx $18,50TBP3-1-x-xx $20,00Accessories:Spade lug 12-14 T2 Copper $1,00Spade lug 22-16 T2 Copper $0,60O ring tongue 16-22 T2 Copper $0,60#8-32 T2 Copper Hex Nuts $1,00Please add to that customs, VAT and shipping costs.You want to get your hands on posts? Then send me a PM with a valid name, nickname, mail address and which posts you want in what quantity. Here an example:name: Dave Examplenickname: DaveExamplemail address: dave@example.com2x TBP3-0-0-02 (pure copper, black body, red insert)2x TBP3-0-1-00 (pure copper, grey body, black insert)2x TBP3-1-0-02 (gold plated, black body, red insert)2x TBP3-1-1-00 (gold plated, grey body, black insert)-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 12, 2025, 07:25:28 am
content: In case someone wants to order TBP2 binding posts instead of TBP3, here is the price overview of the price per unit. Again, send me a PM by the end of February for the group buy.Note: Discounts due to larger quantities will be forwarded:1 TBP2-3-1-C $10.510 TBP2-3-1-C $10.025 TBP2-3-1-C $9.650 TBP2-3-1-C $9.2100 TBP2-3-1-C $8.91 TBP2-3-2-C $11.510 TBP2-3-2-C $11.025 TBP2-3-2-C $10.650 TBP2-3-2-C $10.2100 TBP2-3-2-C $9.9TBP2-A-B-CA: Material (1 - Brass; 2 - Copper; 3 - Tellurium Copper)B: Finish (1 - natural; 2 - CuTe with Ni/Au plating)C: Color (0-Black，2-Red，5-Green，6-Blue，8-Gray)10 Spade lug 14-12 T2 Copper $1.00 (Gold plated $1.60)50 Spade lug 14-12 T2 Copper $0.90 (Gold plated $1.44)100 Spade lug 14-12 T2 Copper $0.80 (Gold plated $1.28)200 Spade lug 14-12 T2 Copper $0.70 (Gold plated $1.12)10 Spade lug 22-16 T2 Copper $0.60 (Gold plated $1.20)50 Spade lug 22-16 T2 Copper $0.55 (Gold plated $1.10)100 Spade lug 22-16 T2 Copper $0.50 (Gold plated $1.00)200 Spade lug 22-16 T2 Copper $0.42 (Gold plated $0.84)-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 21, 2025, 09:45:03 pm
content: Quick remainder, 1 week left to place your order for the group buy.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 28, 2025, 07:11:47 am
content: 12 hours left to place your order. I will tonight send a confirmation to everyone who placed an order.-branadic-

author: DH7DN
author_rank: Regular Contributor
timestamp: February 28, 2025, 12:28:28 pm
content: I hope I wasn't too late!/push

author: p-wave
author_rank: Newbie
timestamp: February 28, 2025, 05:47:12 pm
content: If it is still possible, I would like to partecipesent a pm

author: branadic
author_rank: Super Contributor
timestamp: February 28, 2025, 06:25:39 pm
content: 35 min left to place your order.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: February 28, 2025, 07:12:48 pm
content: FINITO, everyone who placed an orderwill receiveshould have received a confirmationsoon.-branadic-

author: DH7DN
author_rank: Regular Contributor
timestamp: February 28, 2025, 08:31:26 pm
content: I've sent a PM with my order today morning and just few moments ago again.No idea if this worked since I can't see the sent message in "My Messages" menu

author: branadic
author_rank: Super Contributor
timestamp: February 28, 2025, 09:05:55 pm
content: Check your inbox of your Email account.-branadic-

author: DH7DN
author_rank: Regular Contributor
timestamp: March 01, 2025, 08:37:21 am
content: Thanks alot! Confirmation via email arrived. Looking forward to use them in interesting future projects

author: calenguk
author_rank: Newbie
timestamp: March 03, 2025, 09:58:34 pm
content: Just be aware there are loads of poor quality 4mm connectors on the market.

author: Jacques
author_rank: Contributor
timestamp: March 04, 2025, 06:30:55 pm
content: Quote from: calenguk on March 03, 2025, 09:58:34 pmLol, is this a bot racking up posts? I'm pretty sure literally everyone contributing here is aware that there are differences in quality and performance between connectors.

author: branadic
author_rank: Super Contributor
timestamp: March 05, 2025, 07:35:01 pm
content: Quick update:Order was placed and the money already transferred. I let you know once everything has arrived here and I've sorted out the final costs incl. customs and shipping costs for each of you. So similar to last group order. Stay tuned.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: March 22, 2025, 12:35:40 pm
content: Quick update:The TBP3 binding posts are on their way to me, TBP2 binding posts will most likely be shipped to me next week.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: March 30, 2025, 08:00:50 am
content: Update: The package arrived at customs in Cologne.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: April 07, 2025, 05:06:28 pm
content: Update: First package with TBP3 arrived today, the second package with the rest is on its way.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: April 12, 2025, 06:09:14 am
content: Update: Second package arrived in collogne, based on the experience of the first package it will take another week before it arrives.-branadic-

author: Narkara
author_rank: Newbie
timestamp: April 22, 2025, 02:51:51 pm
content: Dang I wish I found this post sooner. I need a bunch of low thermal binding posts for a ADR1001 voltage standard project I'm working on. I don't suppose some extra were ordered?

author: Kofen
author_rank: Regular Contributor
timestamp: April 22, 2025, 06:40:29 pm
content: Quote from: Narkara on April 22, 2025, 02:51:51 pmI probably have a bit more than I need for now, what types are you looking for? I have TBF-3 in pure copper and with gold plating. Only black to spare, but with several different color inlays.

author: Narkara
author_rank: Newbie
timestamp: April 22, 2025, 07:40:20 pm
content: Quote from: Kofen on April 22, 2025, 06:40:29 pmBlack is fine and gold plated is ideal. I'm looking for TBF-3 with each color insert except green. I need at least 4 sets (16 total). I'd send you a PM but I don't think it will let me because my account is so new

author: branadic
author_rank: Super Contributor
timestamp: April 23, 2025, 05:41:28 pm
content: Update: UPS and customs are still challenging me, the package hasn't yet arrivedI haven't ordered extras, just enough for me and my future use. I haven't planned to ship to US either, recent developements made it a challenge to ship to US.-branadic-

author: picburner
author_rank: Frequent Contributor
timestamp: April 24, 2025, 05:56:24 am
content: I'm sorry for the shipping issues you're having.Things are working the same way here if not worse.

author: branadic
author_rank: Super Contributor
timestamp: May 12, 2025, 07:42:37 am
content: It took forever and was an adventure, but finally the rest of the missing pieces arrived. I will contact you within the next days/weeks to complete this group buy and get the pieces shipped to you.-branadic-

author: p-wave
author_rank: Newbie
timestamp: May 12, 2025, 09:30:51 am
content: Great, thank you.

author: DH7DN
author_rank: Regular Contributor
timestamp: May 23, 2025, 11:27:07 am
content: I don't want to rush things but it's been almost 3 months since the order deadline. Surely, I followed your agonizing battles against German Customs Authorities branadic, but I'd like to ask for some more progress, pleaseTo prevent schedule conflicts (vacation, travels) in June and July, is there any realistic chance to pay and receive the TBPs by mid June 2025?

author: branadic
author_rank: Super Contributor
timestamp: May 23, 2025, 03:59:42 pm
content: Always fun to read about complains public, instead of you writing me a mail or PN.A mail was sent this Tuesday, including you, asking for a valid and recent shipping address to calculate shipping costs, check your inbox please.-branadic-

author: DH7DN
author_rank: Regular Contributor
timestamp: May 23, 2025, 06:08:50 pm
content: Hi branadic,Thanks for taking the effort to organize this group order — I really do appreciate the time and coordination it takes, especially with the added headache from customs.I just discovered your original message had been flagged as spam and unfortunately auto-deleted, so I genuinely wasn’t aware of the update when I posted publicly. I’ve already sent you a private message and I am happy to continue resolving everything directly and bilaterally from here on.Looking forward to getting it sorted — and thanks again for sticking with it despite the bumps.Best regards,DH7DN

author: branadic
author_rank: Super Contributor
timestamp: May 26, 2025, 07:22:11 pm
content: The first round of packages will be shipped on Wednesday.-branadic-

author: branadic
author_rank: Super Contributor
timestamp: May 28, 2025, 04:34:40 pm
content: Everyone should have received a mail today, either a quick remainder to pay, a shipping note and/or a tracking number.-branadic-