FS: [UK] 8.5digit DMMs, Datron 4000A/4200, Fluke 731/2, 5440B - Page 1
Forum section: electronics / general

author: essele
author_rank: Frequent Contributor
timestamp: January 16, 2023, 10:45:16 am
content: Hi,After a few years having the volt nut addiction I've decided to kick the habit and am looking to sell a good selection of the kit that I have built up. I will ultimately stick it on eBay but thought it was worth a post on here first to see if there's any interest. I'm struggling to come up with sensible pricing as I can't find much transactional history for a lot of this so very happy to discuss if you think I'm way off, everything is in pretty good condition and as far as I can tell fully working (other than minor comments below.)I'm happy to run any tests that I have the kit to complete, or provide further photos as needed.All of the 8.5 digit DMMs are connected to the 732A reference (and also a DMM7510) and you can see they are all within a couple of ppm of each other and they don't generally move more than 1ppm once ACAL'd despite being in a normal home office with a fair temperature variation.The kit is the following:1.HP 3458A opt 002 -- top one in the photo. I've had this since early 2020, very stable. I recapped it, replaced the cal ram with FRAM, and replaced the fan.SOLD!2. HP 3458A -- not the top one! I've had this since Sep 2020. Also recapped, FRAM, and new fan. I haven't used this one as much, but everything looks fine. There is some minor cosmetic damage on the front panel. I'm looking for £4200.3.Datron/Wavetek 1281 -- I've had this since Sep 2020. Again everything seems nice and stable. I have the cal key.SOLD!4. Solartron 7081 -- not in the photo, I'm in the middle of a binding post upgrade, will provide details once completed.5. Fluke 732A -- had since May 2020, batteries and caps replaced. Powered on since then, very stable as per above. I'm looking for £2500.6. Fluke 731B -- has since March 2020, I think I replaced the battery, it's been powered on since then. Looking for £800.7. Datron 4000A -- had since March 2019. Recapped, works well, there's a delay to the right hand display coming on when cold (around 20 seconds), all fine once this has happened once. Looking for £2200.8. Datron 4200 -- Recapped. Fully working last time I tested it, need to rerun the tests as it's been a while. Looking for £2000.9. Fluke 5440B -- Recapped, relays replaced, fan replaced (thread here:https://www.eevblog.com/forum/metrology/another-fluke-5440baf-repair/msg3718042/#msg3718042. Has been off for 6 months or so, so I want to retest. Looking for £2200.I also have another "donor" Datron 4200 ... from memory it's fully complete and was working but the output was noisy. I'll have to look at that again but I don't have the space at the moment.All plus actual shipping costs. Obviously the 4000A, 4200, and 5440B are a bit of a shipping nightmare, but I can probably figure out something. I'm based in Poole if that helps.PM me if there's any interest. Cheers. Lee.

author: coromonadalix
author_rank: Super Contributor
timestamp: January 16, 2023, 10:56:14 am
content: just be careful for the datron shipment(s) if there is, any pressure on the front panel can damage the displays if i recall

author: dianzimi
author_rank: Contributor
timestamp: January 17, 2023, 01:37:35 am
content: can you put it to ebay

author: essele
author_rank: Frequent Contributor
timestamp: January 17, 2023, 08:52:42 am
content: Quote from: dianzimi on January 17, 2023, 01:37:35 amHi dianzimi,Is there something specific you are interested in? I'm in the middle of a few conversations at the moment, once they have worked themselves through I'll put everything left on eBay, but if there is something specific you are interested in then I can certainly prioritise that.Lee.

author: essele
author_rank: Frequent Contributor
timestamp: January 20, 2023, 08:41:40 am
content: The Datron/Wavetek 1281 is now sold.I've put the Fluke 731B on eBay ...https://www.ebay.co.uk/itm/134417861691More to follow...