Search found 698 matches

by Zenith
Fri Dec 13, 2024 11:43 am
Forum: Test Equipment
Topic: Post a picture of a cat
Replies: 196
Views: 63913

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 ...
by Zenith
Thu Dec 05, 2024 6:07 pm
Forum: Test Equipment
Topic: Racal 9917 frequency counter
Replies: 0
Views: 243

Racal 9917 frequency counter

This came from a swapmeet. I don't need another Racal frequency counter, but I hadn't bought anything and I haven't had this particular model before. The seller wanted £5 for it and it came with a rubber duck antenna and a BNC tee piece, which I thought were worth £1. They usually ask £15 and upward...
by Zenith
Mon Dec 02, 2024 8:48 pm
Forum: Test Equipment
Topic: hp 8505A network analyser
Replies: 6
Views: 3959

Re: hp 8505A network analyser

I must say I admire your dedication. It doesn't make me more inclined to be drawn into the world of HP 85XX, but it is admirable.
by Zenith
Mon Dec 02, 2024 12:27 pm
Forum: Test Equipment
Topic: Tek 7B92 Plug-in Repair
Replies: 11
Views: 1056

Re: Tek 7B92 Plug-in Repair

Arrange some support blocks and stand it on its rear end with the plug in standing upright? If you had a lazy Susan that would let you access both sides easily. The challenge would be preventing Harley from knocking it over... -Pat Have pieces of wood or foam plastic to support the back and prevent...
by Zenith
Sun Dec 01, 2024 1:08 pm
Forum: Test Equipment
Topic: HP 427A
Replies: 5
Views: 522

Re: HP 427A

Wiggly things certainly have their place for adjustments such as you describe. However at rough count I already had nine before I bought this, including TRMS and RF millivoltmeters as well as a VVM. Then there are four portable ones including a couple of AVOs. So I'm not entirely sure what induced m...
by Zenith
Sat Nov 30, 2024 4:42 pm
Forum: Test Equipment
Topic: HP 427A
Replies: 5
Views: 522

Re: HP 427A

Like most jobs, it takes a while to work out the problems of doing it. The next time, the problems have been worked out and it's much faster. There is software for making custom meter scales. I haven't tried any. The other option is to scan a scale and print it. Failed meters on TE can be a real pro...
by Zenith
Sat Nov 30, 2024 3:57 pm
Forum: Test Equipment
Topic: HP 427A
Replies: 5
Views: 522

HP 427A

This came from a swapmeet for £10. I didn't notice the flaking scale, which is something to look out for on all HP meters of this period. There was a mains/battery option, but this one is battery only operation. The battery is a 22.5V EverReady No 763, which is now obsolete, but substitutes are made...
by Zenith
Tue Nov 12, 2024 11:31 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

In the UK there's this https://www.legislation.gov.uk/ukpga/2022/32/part/3/crossheading/public-nuisance There was a common law offence of public nuisance, which it replaces. There's also a tort of private nuisance under which a civil action could be pursued. Of course it would be best to go to the ...
by Zenith
Tue Nov 12, 2024 8:16 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

Are there any local laws about excessive noise? I doubt there are any about excessive strobe lights :twisted: As for put-put devices, not much can beat hydraulic rams - and they are useful. :twisted: In the UK there's this https://www.legislation.gov.uk/ukpga/2022/32/part/3/crossheading/public-nuis...
by Zenith
Sun Nov 10, 2024 9:01 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

I am usually pleasantly surprised at them. I walk away with what I'd consider bargains almost every time. Well I did when I went to them! (no time or transport now). The overpriced items were usually things that the seller knew/understood/wanted and purchased at a reasonable price back when they we...
by Zenith
Sun Nov 10, 2024 12:35 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

I've rarely seen it. Once was at a car boot sale where a woman was selling a piece of electronic kit. She had a sign saying "£15 - no offers", but she didn't know what it was. I explained it was a chromatone, a piece of early disco equipment. It splits music into three frequency bands and ...
by Zenith
Mon Nov 04, 2024 10:41 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

I mentioned Johns Radio a few days ago. Purely by coincidence I was looking at an archive disk today and came across the catalog for the "closing down" sale in 2002. John was not happy with the result and claimed that the buyers had conspired to keep prices low. No such thing happened. Th...
by Zenith
Fri Oct 25, 2024 11:08 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

It seems like a plausible explanation. Tunnel LEDs, the component of the future. These things are operating at the limits. Here's something I've been curious about. It's the PCB from a 50W work light which failed. It was dead and was thrown out. It produces nothing when 230V is applied so probably n...
by Zenith
Wed Oct 23, 2024 9:32 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

The stack of in-use bench meters is Fluke 8853A (6.5 digit), Keithley 199 (5.5 digit), R&S UDS5 (5.5 digit) and Wavetek 52 (4.5 Digit x 2). Swanking it and rubbing it in. I like it. I'm only just starting with the bench multimeter scene, but I must admit there's something very alluring about it...
by Zenith
Tue Oct 22, 2024 12:48 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

This lot do the Full Monty, 3½,4½,5½ and 6½, voltage,current and resistance UKAS accredited, but you have to apply for a quote. https://www.rhopointmetrology.co.uk/calibration/electrical/multimeter/ They also do capacitance meters and calibrators "traceable". I'd guess they adjust meters w...
by Zenith
Tue Oct 22, 2024 9:56 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

I'd probably do the same. Still if you had a serious use for it, and could reclaim the VAT, £750 with a guarantee and a calibration certificate is worth a thought. What does it cost to get a 6½ digit meter calibrated? I've had a quick look and calibration houses are a bit cagey about publishing thei...
by Zenith
Mon Oct 21, 2024 7:12 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

Well, you can get carried away with this stuff and on the principle that you can't take it with you when you go, a nice little Siglent SDM3065X Digital Multimeter (or others) might hit this particular ball out of the ground, for all practical purposes. https://siglent.co.uk/product/siglent-sdm3065x-...
by Zenith
Mon Oct 21, 2024 10:12 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

So, new arrival (talked about it in Discord, but that's only half of the introduction to the community.): - hp - 3478A Multimeter, my first real foray into "many digits". It was not very expensive, but not as cheap as I would have wanted. Contrary to the cautions made by the very decent s...
by Zenith
Mon Oct 07, 2024 11:00 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

By that token, my HP 427A has already been converted to mains operation by the two banana sockets. My TF2700 has a normal modern low voltage socket fitted. I'm sure I powered it from a bench PSU. PP9s are about £7.50. They appear to have just been discontinued by EverReady. Homebase are flogging the...
by Zenith
Mon Oct 07, 2024 9:53 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

I have an HP 427A I mean to do something about. It's supposed to be battery operated. The batteries are available but cost more than I paid for it. Considering its performance, I can't see why I'm inclined to mess with it but it is from HP's golden age. Is yours strictly battery operation only? The...
by Zenith
Mon Oct 07, 2024 8:34 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

I have an HP 427A I mean to do something about. It's supposed to be battery operated. The batteries are available but cost more than I paid for it. Considering its performance, I can't see why I'm inclined to mess with it but it is from HP's golden age. As for welders, I have four: An 80 Amp buzz bo...
by Zenith
Mon Oct 07, 2024 9:07 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

A previous generation automotive oscilloscope with features particular tor internal combustion engines. Probably not good for general use, but just the thing if you want to diagnose and tune a 30 year old sports car.
by Zenith
Sat Oct 05, 2024 11:06 am
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

That said, I nearly did buy one about 5 Hamfests back, but it was a 75 Ohm one-------a definite "trap for young players"! And not so young players. I bought an HP8601A sweeper a year back. I didn't spot it had the 75 Ohm option. It wouldn't have made much difference because it was only £1...
by Zenith
Thu Oct 03, 2024 12:54 pm
Forum: Test Equipment
Topic: Test Equipment Anonymous (TEA) : Discussion and Group Therapy Thread
Replies: 3217
Views: 761247

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

That said, I nearly did buy one about 5 Hamfests back, but it was a 75 Ohm one-------a definite "trap for young players"! And not so young players. I bought an HP8601A sweeper a year back. I didn't spot it had the 75 Ohm option. It wouldn't have made much difference because it was only £1...