solartron dmm - Page 1
Forum section: electronics / repair

author: p.larner
author_rank: Frequent Contributor
timestamp: February 03, 2024, 12:25:27 pm
content: I have the solartron 7075 volt+ohms meter,its display doesent change when fed with any voltage or any resistances on its inputs,i have replaced a couple of faulty caps on the psu pcb,all power rails are in spec and ripple free,any ideas what pcb handles the input sampling?,cant attatch the sm as its too big,but is available online,thanks in advance.

author: Gyro
author_rank: Super Contributor
timestamp: February 03, 2024, 12:59:05 pm
content: Do you really have to start a new threadevery timeyou mention this (7075) DMM?Kleinstein provided you with an informed response here...https://www.eevblog.com/forum/metrology/solartron-7075-413074/From your thread on UK Vintage radio, you seem to be asking for somebody to read the manual for you because you"don't fancy trawling thru 200+ pages of the service manual to find out".You need to read and thoroughly digest the manual if you're going to stand any chance of fixing it!

author: factory
author_rank: Super Contributor
timestamp: February 03, 2024, 01:10:55 pm
content: Quote from: p.larner on October 07, 2023, 06:44:55 amIf the OP hasn't got time to read the & manual, block diagram & circuit diagrams, we certainly haven't.

author: tggzzz
author_rank: Super Contributor
timestamp: February 03, 2024, 01:43:39 pm
content: Quote from: factory on February 03, 2024, 01:10:55 pmNot only is it a near-duplicate post, he hasn't even got time to put the model number in the title, nor to have conventional capital letters and punctuation.In the days of snail-mail, his missives would be handwritten in green ink.Definitely a timewaster.

author: tggzzz
author_rank: Super Contributor
timestamp: February 03, 2024, 01:50:26 pm
content: Quote from: Gyro on February 03, 2024, 12:59:05 pmHere's that post:https://www.vintage-radio.net/forum/showpost.php?p=1613791&postcount=4At least he managed to put "7075" in the title over there."Paul Larner of Northampton" is pissing people off over there, too. Reminds me of another irritation: f*/t*/o*

author: factory
author_rank: Super Contributor
timestamp: February 03, 2024, 02:08:17 pm
content: I can't remember if he did get the title correct on the radio forum, as the mods usually correct them or add missing info, note only the mods can edit titles after posting there.Oddly his location is different on here.David

author: Gyro
author_rank: Super Contributor
timestamp: February 03, 2024, 02:12:01 pm
content: Quote from: tggzzz on February 03, 2024, 01:50:26 pmClose...https://www.vintage-radio.net/forum/showthread.php?t=207390QuoteThere's a reason for that

author: tggzzz
author_rank: Super Contributor
timestamp: February 03, 2024, 02:15:19 pm
content: Quote from: Gyro on February 03, 2024, 02:12:01 pmReason for pissing people off is easy to understand. But is your response also about why we are reminded of that other nuisance? Are you implying the two posters are correlated?

author: Gyro
author_rank: Super Contributor
timestamp: February 03, 2024, 02:16:39 pm
content: The second one (Dave confirmed it a few months back).Edit: Oh, sorry, you meant treez. No, m3vuv (I thought you were meaning the lower case, no punctuation).

author: factory
author_rank: Super Contributor
timestamp: February 03, 2024, 02:21:06 pm
content: I've thought this is the same as user as the banned "m3vuv" (aka "M3VUV51" on the radio forum, who was banned too) for a while, think the a bit of google confirms my suspicions.https://groups.google.com/g/uk.radio.amateur/c/5cpqCBvhcHU?pli=1https://www.eevblog.com/forum/repair/not-a-repair-as-such-but-here-goes/msg3424710/#msg3424710https://www.eevblog.com/forum/projects/chinese-electronic-load/msg5133513/#msg5133513Anyone able to look up the QRZ call-sign list to confirm?

author: tggzzz
author_rank: Super Contributor
timestamp: February 03, 2024, 02:28:45 pm
content: Quote from: Gyro on February 03, 2024, 02:16:39 pmBloody hell. This is the post:https://www.eevblog.com/forum/projects/chinese-electronic-load/msg5132787/#msg5132787I'm becoming seriously irritated by some of the posting behaviour on this forum. I perfectly understand why the mods let many things pass until members bring their attention to such behaviour; rational, proportionate, etc. But if there are too many "broken windows in the neighbourhood", people start to move out because of the deterioration.

author: factory
author_rank: Super Contributor
timestamp: February 03, 2024, 02:48:30 pm
content: Trouble is it can be hard to tell (apart from the illegible posts in this case), when banned people return under new names and at least three different locations.David

author: factory
author_rank: Super Contributor
timestamp: February 03, 2024, 03:22:51 pm
content: You can't escape anywhere on the web, see post #137 here;https://groups.io/g/Solartron_Schlumberger_Equipment/topic/input_connector_cable/103448605?p=,,,20,0,0,0::recentpostdate/sticky,,,20,0,0,103448605,previd%3D1706264012417121716,nextid%3D1596896352824358660&previd=1706264012417121716&nextid=1596896352824358660I rest my case...David

author: coromonadalix
author_rank: Super Contributor
timestamp: February 03, 2024, 04:01:11 pm
content: Quote from: tggzzz on February 03, 2024, 02:28:45 pmyeah become a pleague here in some cases, even reporting similarities to the mods, does not end in locking the offending thread(s) for sure when you see it the same section 3x almost identicals titles / descriptions about the same thing pfffflost some faith hereand i do think some whant to see their count postings goes up ?

author: tggzzz
author_rank: Super Contributor
timestamp: February 03, 2024, 05:42:21 pm
content: Quote from: factory on February 03, 2024, 02:21:06 pmGurgling for "m3vuv" leads to...Public access gives a photo ofaperson at South Queensferry andsomeperson's biographical details.I have no opinion of veracity of this, and no way of verifying it, nor whether it relates to this thread's OP. Make what you will of that public information.Searcbing this forum for "quadzillatech" is also interesting.

author: factory
author_rank: Super Contributor
timestamp: February 03, 2024, 08:02:47 pm
content: Interesting, but as you say doesn't relate it to the OP here, but the post on the Solartron groups.io about input connector, dated around when this was DVM was purchasedisfrom a member with the username of "Paul M3VUV", or maybe someone joined to troll using his name IDK.The Quadzillatech (bet there are more alias we haven't spotted) posts made very interesting reading, especially the scamming on ebay one.Makes me question if I want to continue selling on there, I will definitely be avoiding buying any Solartron 7075 DVMs with banana sockets.See the HP groups.io too;https://groups.io/g/HP-Agilent-Keysight-equipment/message/120903P.S. almost forgot the this thread, the radio forum & mods got attacked;https://www.vintage-radio.net/forum/showthread.php?t=185578David