Search found 836 matches

by Specmaster
Mon Dec 16, 2024 11:24 pm
Forum: Test Equipment
Topic: Tek 7B92 Plug-in Repair
Replies: 11
Views: 1056

Re: Tek 7B92 Plug-in Repair

MED6753 wrote: Mon Dec 16, 2024 11:03 pm It's +15V coming in from the mainframe at pin 18. The +5V is the error. It should read +15V.
Thats what I was saying, but kind of badly :lol:
by Specmaster
Mon Dec 16, 2024 9:46 pm
Forum: Test Equipment
Topic: Tek 7B92 Plug-in Repair
Replies: 11
Views: 1056

Re: Tek 7B92 Plug-in Repair

Finally got some time to troubleshoot this plug-in. The defect with this plug-in was staring me right in the face. The Main Triggering Mode/Coupling/Source switches are supposed to light up. DS1 and DS3 on attached schematic. Verified that there's no +5V to the lamps. So in the process of tracking ...
by Specmaster
Sun Dec 15, 2024 12:35 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761246

Re: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread

https://imagizer.imageshack.com/v2/800x600q70/924/2UHslt.jpg This Sangamo Type F portable watt hour meter was the main item I was interested in though. It'll count up to 20 kWh. It's limited to 5 Amps though so that limits what kind of device testing you can do with it. Higher powered appliances li...
by Specmaster
Mon Dec 09, 2024 2:35 pm
Forum: Test Equipment
Topic: Post a picture of a cat
Replies: 196
Views: 63913

Re: Post a picture of a cat

How about a seasonal cat picture?

https://www.facebook.com/share/r/18Gft6139t/
by Specmaster
Sun Dec 08, 2024 12:45 am
Forum: Test Equipment
Topic: Post a picture of a cat
Replies: 196
Views: 63913

Re: Post a picture of a cat

MED6753 wrote: Thu Dec 05, 2024 12:43 am
Specmaster wrote: Wed Dec 04, 2024 9:50 pm Seasonal cat picture.

cat and tree.jpg
Ain't that the truth. Harley has already broken several. :shock:
Arh, yes, but he's still a young kitten at heart, give him a couple of years and that will be a thing of the past.
by Specmaster
Wed Dec 04, 2024 9:50 pm
Forum: Test Equipment
Topic: Post a picture of a cat
Replies: 196
Views: 63913

Re: Post a picture of a cat

Seasonal cat picture.
cat and tree.jpg
by Specmaster
Sat Nov 30, 2024 1:12 am
Forum: Test Equipment
Topic: Post a picture of a cat
Replies: 196
Views: 63913

Re: Post a picture of a cat

I think that Ginger would have a bit of a problem with a TV these days.
cat TV.jpg
by Specmaster
Sat Nov 16, 2024 8:02 pm
Forum: Test Equipment
Topic: Post a picture of a cat
Replies: 196
Views: 63913

Re: Post a picture of a cat

398307689_295828923364519_8129595896430711879_n.jpg
cats.jpg
by Specmaster
Sat Nov 16, 2024 7:54 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 823
Views: 212824

Re: Interesting findings on the internet

I was just over on "the other place"----No, not the Australian Senate Chamber, but EEVBlog. In their "Projects" section, there is a seriously weird guy called "artbyrobot" , who purports to be building a humanoid robot. His methods are very unlikely to be successful, h...
by Specmaster
Sat Oct 12, 2024 10:44 pm
Forum: Test Equipment
Topic: TEK TM503 Project
Replies: 90
Views: 40215

Re: TEK TM503 Project

OK gang, I opened up the assembly and I found the problem. And my hunch was totally correct. As proof, the unit on the bench and measuring the 9MEG resistor. NFG. https://imagizer.imageshack.com/v2/xq70/923/zsm4Gm.jpg I opened it up with a dremel. That large resistor clearly says 9MEG/0.1%. https:/...
by Specmaster
Tue Oct 08, 2024 9:29 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761246

Re: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread

Ha! See post by me at top of previous page involving PS Waverley :) I think that was what prompted me to post. That reminds me of a test equipment enthusiast who vanished some years ago, possibly now deceased. He was known as Archivist on IRC and he had a self-hosted website cataloguing his collect...
by Specmaster
Sun Sep 08, 2024 4:13 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761246

Re: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread

From what I know of the Soviet defence sector, the persistence of the things is because they had regulatory requirement to be able to be self-sufficient as a nation and they had a lot of stock left lying around. On top of that the cost was much lower than newer technology. Suitable meme cJpvQY1.jpe...
by Specmaster
Fri Aug 23, 2024 9:36 pm
Forum: Test Equipment
Topic: Solartron 7150 Plus
Replies: 6
Views: 3073

Re: Solartron 7150 Plus

Just did my 7150 a couple of weeks back. I bought a new filter from Mouser which was fine. They sell new ones. Yes they aren't short of £30 but it's that or burn the house down so I figured it was a good trade off. I did use the genuine correct HP LED parts, which are still sold by Broadcom now (!)...
by Specmaster
Thu Aug 22, 2024 8:55 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761246

Re: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread

Cerebus wrote: Thu Aug 15, 2024 11:13 pm
https://en.wikipedia.org/wiki/The_Clink
Image
I used to have an office just the other side of the river, in Queen Street but never found the time to visit the Clink, shame.
by Specmaster
Thu Aug 08, 2024 4:25 pm
Forum: Test Equipment
Topic: Tektronix 475
Replies: 25
Views: 11339

Re: Tektronix 475

The Russians captured the low-end functional market for several types of items in that era, because the stuff was cheap and solid. Anybody remember Zenit SLR cameras? Yes, I do, I had one for many years (it was a Dixons Prinz badged one, poorly done, a plastic badge stuck over the Zenit logo, but i...
by Specmaster
Wed Jul 24, 2024 9:03 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 823
Views: 212824

Re: Interesting findings on the internet

So bored and drunk after an extremely profitable couple of days "digging people out of the shit thanks to Crowdstrike" This is interesting, a bit over my head to sort it out, but if this what he is saying is correct, then once you know what to look for then it should be easy to resolve. I...
by Specmaster
Wed Jul 24, 2024 6:28 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 823
Views: 212824

Re: Interesting findings on the internet

So bored and drunk after an extremely profitable couple of days "digging people out of the shit thanks to Crowdstrike" This is interesting, a bit over my head to sort it out, but if this what he is saying is correct, then once you know what to look for then it should be easy to resolve. h...
by Specmaster
Sat Jul 20, 2024 10:07 pm
Forum: Test Equipment
Topic: Wouldn't happen with an ASR33
Replies: 19
Views: 10513

Re: Wouldn't happen with an ASR33

Not even surprised. The keyboards I kill least are the chiclet ones which are low travel. Both the Cherry SX and Apple Magic keyboards seem to last the longest (12-18 months each). I usually kill the switches not the keytops though. If they are cherry switches, then you can get replacement switches...
by Specmaster
Wed Jul 17, 2024 11:49 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761246

Re: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread

I am much more worried aboot a watch being exposed to dwagon-sweat than I am a little mostly-inert water while swimming or showering. mnem stainless steel... often isn't. True, dwagon-sweat and normal sweat is salty. Stainless Steel as in Citizen watches most certainly is stainless steel unless it'...
by Specmaster
Tue Jul 16, 2024 12:57 pm
Forum: Test Equipment
Topic: Wouldn't happen with an ASR33
Replies: 19
Views: 10513

Re: Wouldn't happen with an ASR33

Not even surprised. The keyboards I kill least are the chiclet ones which are low travel. Both the Cherry SX and Apple Magic keyboards seem to last the longest (12-18 months each). I usually kill the switches not the keytops though. If they are cherry switches, then you can get replacement switches...
by Specmaster
Tue Jul 16, 2024 12:52 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761246

Re: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread

So are my Citizen watches, but I would never like to put them to the test, but a proper true diver's watch, well that's different. Not really. Depends to what standards they comply with or is it just marketing. Your other point from the earlier post is quite frankly wrong. Treating a device with re...
by Specmaster
Tue Jul 16, 2024 12:35 pm
Forum: Test Equipment
Topic: RACAL 9301A (early version)
Replies: 9
Views: 6311

Re: RACAL 9301A (early version)

tggzzz wrote: Tue Jul 16, 2024 10:57 am
synx508 wrote: Tue Jul 16, 2024 7:12 am
... some very nice Chemtronics desolder braid (bought at the rally, have you seen how much this stuff costs new now?!)...
I bought what I thought would be a lifetime's supply. Then TEA struck :(
Simples, just get yourself a nice desoldering gun, I've never regretting mine.
by Specmaster
Sun Jul 14, 2024 6:57 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 823
Views: 212824

Re: Interesting findings on the internet

I've seen some weird things. My parents 1850 house had its mains cable emerge in the centre of the property. The next owners discovered it was a 3 phase supply! The round-pin 13 amp wall sockets were all disconnected; just as well since the vulcanised rubber insulation had disintegrated. Their prev...
by Specmaster
Sat Jul 13, 2024 7:47 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 823
Views: 212824

Re: Interesting findings on the internet

I've seen some weird things. My parents 1850 house had its mains cable emerge in the centre of the property. The next owners discovered it was a 3 phase supply! The round-pin 13 amp wall sockets were all disconnected; just as well since the vulcanised rubber insulation had disintegrated. Their prev...
by Specmaster
Wed Jul 10, 2024 9:54 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761246

Re: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread

My Fitbit Versas (Gurrgle/Android) are water-resistant and advertised as safe for full-immersion/swimming safe to 30 meters; newer models are advertised the same to 50 meters, having a "swimming mode" which engages automatically by means of a barometric sensor. I know this because I've ha...