Search found 721 matches

by Zenith
Wed Feb 05, 2025 10:29 pm
Forum: Test Equipment
Topic: Tektronix DMM916
Replies: 3
Views: 2371

Re: Tektronix DMM916

I've been after one of these for a while, after getting a 912, and being seriously impressed with it. though I did my best bd139 impression with lowball offers and counter-offers, I eventually had to pay £89. Not even close. bd139 would have started by explaining how this thing was an environmental...
by Zenith
Wed Feb 05, 2025 12:41 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

However neither the story nor the quote was as memorable and pointed as the Profumo scandal 14 years earlier. Then, when Lord Astor denied an affair or even having met Mandy Rice-Davis, she dispatched that swiftly with pert humour, "Well he would, wouldn't he?". Now that's a quote that is...
by Zenith
Tue Feb 04, 2025 10:51 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I grew up in Epsom, at the time of Joyce McKinney's famous "Mormon sex in chains" case. The journalists adjourned to the local pub, appropriately named The Spread Eagle. https://en.m.wikipedia.org/wiki/Manacled_Mormon_case I remember that including the quote, "I loved him so much tha...
by Zenith
Tue Feb 04, 2025 10:43 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

tggzzz wrote: Tue Feb 04, 2025 8:20 pm
bd139 wrote: Tue Feb 04, 2025 4:58 pm Acolytes doesn't feel dirty enough.
You ought to be careful... Someone Over There has written "I don't understand why bd139 is some kind of cult character to some,..." :shock: :lol:
I do. I've got all his merch including the very collectible bd139 Thug Life tee shirt.
by Zenith
Tue Feb 04, 2025 9:20 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I've only seen overenthusiastic admiration of a celebrity, cf the depth perception problem surrounding Musk and Jobs and certain politicians. I can see why the likes of Musk and Jobs are admired. They both achieved a considerable amount. Jobs was certainly a very flawed person. I've never understoo...
by Zenith
Sun Feb 02, 2025 12:16 pm
Forum: Test Equipment
Topic: TEK RM5110
Replies: 5
Views: 2326

Re: TEK RM5110

Interesting. I've never seen a Tek 5000 series in the flesh. They had a wide range of plugins, including unusual ones such as an audio spectrum analyzer and a curve tracer.

https://w140.com/tekwiki/wiki/Introduct ... illoscopes
by Zenith
Mon Jan 27, 2025 7:59 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 852
Views: 264282

Re: Interesting findings on the internet

That's a good site. There are a lot of my favourites on it. It's also given me ideas about fixing my Racal 1991.
by Zenith
Fri Jan 24, 2025 1:58 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 852
Views: 264282

Re: Interesting findings on the internet

Dunno. I have a TM4313 which appears to be perfect for my purposes and I find I'm oddly lacking in curiosity about how GPSDOs work. Designing one seems to be a fiddly business and rapidly leads down the rabbit hole of time nuttery and potentially vast expense. I wouldn't be surprised if it was a hol...
by Zenith
Tue Jan 21, 2025 7:08 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I remember '63. The neighbours' pipe from the street was frozen. Ours was OK and we filled an enamel bath for them so they could have water. A schoolfriend shot a pigeon sitting on a post with a catapult (slingshot). He saw the stone bounce off. He walked up to it and it was frozen solid on the post...
by Zenith
Mon Jan 20, 2025 12:53 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I remember the winter of 81/82, when it was exceptionally cold[1] from early December to mid/late January. I had just moved into my first flat, and couldn't get any coal since the coalyard was frozen solid. Things went on, including my push-biking along a snow-covered back road to get to the train ...
by Zenith
Mon Jan 20, 2025 1:35 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

Went to store for soda for the kids... everybody is there stocking up on everything from milk to bread to yes, dozens of rolls of TP. Lines literally 3/4 of the store deep. Why? 80-160mm of snow forecast over the next 2 days. :roll: Panic buying is a strange mentality. You'd think folks would keep ...
by Zenith
Thu Jan 09, 2025 11:28 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I'd buy black Christmas lights :lol: They are difficult to find in the shops, but I'll sell you my spare set for £50. :roll: I expect hipsters will have a kickstarter for a half-hearted gray version in 2025 Those near UV fluorescent tubes were called black lights. They have their uses but not as Ch...
by Zenith
Thu Jan 09, 2025 11:21 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I've only had cheap strings of solar powered outdoor lights. One problem is that the LED leads are not well sealed, moisture gets in and the leads corrode away. Electrolysis may play a part. The solar charger/battery component also has problems with not being sealed against moisture and the battery ...
by Zenith
Sat Jan 04, 2025 3:13 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

People will buy anything these days :lol: That must be it. For about that price you can buy new, a guitar amplifier from a recognised maker that's been in business for years, and will very likely have a better value on the used market, should you choose to sell it. https://www.andertons.co.uk/brows...
by Zenith
Sat Jan 04, 2025 12:05 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

The Brimar / British Valve Project people have made a "TV amp" that aims to use just those valves for AF amplification. It apparently can be done, but of course would require some effort and adaptations. I couldn't find any mention of it on their website. http://www.tellytone.com It seems...
by Zenith
Fri Jan 03, 2025 7:56 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

The Brimar / British Valve Project people have made a "TV amp" that aims to use just those valves for AF amplification. It apparently can be done, but of course would require some effort and adaptations. I couldn't find any mention of it on their website. https://brimaruk.com/ It seems to...
by Zenith
Fri Jan 03, 2025 6:30 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I have a question for you learned engineers. Riddle me this... On some of the streaming services that Blondie watches many times the audio and video are out of sync. The audio delays a second or two. But interestingly the audio and video on the commercials on the same service are in sync. The inter...
by Zenith
Fri Jan 03, 2025 11:22 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

The valve audio market is silly, but not indiscriminately silly. It follows fads and fancies which are subjective, and dubious on any rational or engineering basis, but they are not willing to snap up any old valve for outrageous prices. Telly valves with odd heater voltages and intended for VHF use...
by Zenith
Thu Jan 02, 2025 5:30 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

I'm selling/have been trying to sell an Aerialite TV signal booster. Relist it, but mark it as "rare, valve/tube, audiophile" - with an increased price, of course. Maybe, but the valves in it are likely to be ones you'd find in a 1950s TV and designed for VHF, so not on the valve audio sh...
by Zenith
Mon Dec 30, 2024 4:24 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3402
Views: 1204755

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

Got a question from a potential buyer for the Aerialite, about trafo secondaries. They seem to be 220-0, 0-6.3-7.3, with the 0V points connected, and grounded. Am I reading it correctly, are these plausible choob trafo secondary voltages? They are plausible for a small piece of equipment such as a ...
by Zenith
Sun Dec 29, 2024 10:21 am
Forum: Test Equipment
Topic: Tek 7B92 Plug-in Repair
Replies: 15
Views: 9056

Re: Tek 7B92 Plug-in Repair

You are probably aware of this, but U310 was used in a number of Tek scopes and plug-ins, so possible spares from parts mules, and maybe those manuals give a better idea of how it was used, with voltages and waveforms. It's covered on Tekwiki https://w140.com/tekwiki/wiki/155-0049-00 They give a blo...
by Zenith
Tue Dec 24, 2024 10:15 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 852
Views: 264282

Re: Interesting findings on the internet

In 1990 I was using a computer with a 21" monitor. Big, heavy, but not too much to pick up, awkward and very expensive. We had an office move, so I picked it up and was carrying it to the new location. On the way there I touched a screw head on the bottom and had a shock. It must have been accu...
by Zenith
Mon Dec 23, 2024 4:56 pm
Forum: Test Equipment
Topic: Interesting findings on the internet
Replies: 852
Views: 264282

Re: Interesting findings on the internet

Looking on the WWW, Mitsubishi made a few 61" CRT TVs. With their high cost and weight, few if any of these outsize CRT TVs can have been sold. It seems more like an attempt to gain bragging rights than to produce a profitable product. I remember helping someone install a huge CRT TV, I think i...
by Zenith
Fri Dec 13, 2024 11:43 am
Forum: Test Equipment
Topic: Post a picture of a cat
Replies: 201
Views: 89495

Re: Post a picture of a cat

xbox_xboxbox.jpeg I don't know about Germany, but in the UK a traditional "joke" is that young kids spend longer playing with the box than the present. I had a colleague whose brother wanted a bike for Christmas when they were kids. The parents were hard up but made the effort to buy him ...