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The lounge Relax, take a break from photo and camera talk - have a chat about something else for a change. Just keep it clean and polite!

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  #16  
Old 5th October 2018
Jim Ford Jim Ford is offline
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Re: Salt & Vinegar?

I remember buying a OC71 packaged in a large box - like valves came in. It was expensive! As a hobbyist it was generally 'red spot' transistors, which I believe were factory rejects.

Jim
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  #17  
Old 8th October 2018
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Re: Salt & Vinegar?

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I remember buying a OC71 packaged in a large box - like valves came in. It was expensive! As a hobbyist it was generally 'red spot' transistors, which I believe were factory rejects.

Jim
I can remember sending postal orders off for bags of unmarked or untested transistors and diodes. I think they were about 6/- plus 6d postage.
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  #18  
Old 8th October 2018
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Re: Salt & Vinegar?

And I remember checking transistors using an AVO.
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  #19  
Old 8th October 2018
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Re: Salt & Vinegar?

I too used to fix electronics down to the chip level. Mainly digital stuff that used DILICS - Dual In-Line Integrated Circuits. usually 14 pin devices that contained 4 NAND gates or 4 NOR gates and the like. The rate of change was amazing my wife earned more money working piece work at ICL wiring backplanes for their mainframe computers, than I did designing them. Now all electronic assembly is done with robots or in China.
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  #20  
Old 8th October 2018
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Re: Salt & Vinegar?

I used to listen to transitor radios
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  #21  
Old 8th October 2018
Jim Ford Jim Ford is offline
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Re: Salt & Vinegar?

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And I remember checking transistors using an AVO.
Yes, me too!

Jim
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  #22  
Old 8th October 2018
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Re: Salt & Vinegar?

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And I remember checking transistors using an AVO.
I had a Taylor meter which I thought was much better. I had that for years but eventually the meter movement failed by which time Taylor had disappeared and/or was unable to repair it. (I cannot remember which now.)

But I do still have an oscilloscope built by EMI around 1960 (the EM8) which was evidently hand made as it doesn't have a single rivet or spot weld in it. I haven't fired it up for a while but it all worked the last time I tried and was good for keeping the workshop warm in winter.
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Old 8th October 2018
Keith-369 Keith-369 is offline
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Re: Salt & Vinegar?

I still have all my resistors, capacitors, transistors, etc. etc. etc. all sorted and in little packets ready for use.

Why? ... I just don't like to get rid of them.
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  #24  
Old 8th October 2018
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Re: Salt & Vinegar?

The thing about an AVO was that everyone had one, I’ve got s scope somewhere but not sure where, but I did find the leads the other week when rummaging about. Didn’t find what I was looking for though.
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  #25  
Old 8th October 2018
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Re: Salt & Vinegar?

I got a "low cost" multimeter off eBay a few years ago. The connection between one of the the leads and the end probe failed after about 3 uses. Managed to re-solder it together so it still works fine.

Made in China is not aways the best. Even though the vast majority if electronics are made there.

I always really needed an oscilloscope honest. (love old tech)
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Old 8th October 2018
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Re: Salt & Vinegar?

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Originally Posted by Keith-369 View Post
I still have all my resistors, capacitors, transistors, etc. etc. etc. all sorted and in little packets ready for use.

Why? ... I just don't like to get rid of them.
Me too, actually in a plastic case full of little red capped plastic pots set in foam, sold by RadioSpares as was. Got hundreds of the things and cmos ICs plus loads of 7400 series too, all kinds of crap really. Pity none of it is worth anything though! Resistors, caps, fuses, 7-segment displays, you name it.....
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  #27  
Old 8th October 2018
Jim Ford Jim Ford is offline
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Re: Salt & Vinegar?

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Originally Posted by Naughty Nigel View Post
I had a Taylor meter which I thought was much better. I had that for years but eventually the meter movement failed by which time Taylor had disappeared and/or was unable to repair it. (I cannot remember which now.)
I've got an ex GPO moving coil multimeter (it may be a Taylor - I don't currently have it to hand). I got it off a stall in St Albans that used to sell surplus equipment cheap. The needle was stuck and I discovered that it was owing to a small piece of iron swarf on the magnet. I removed it with sellotape and it's been fine.

Moving coil meters are still useful for 'peaking'.

Jim
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  #28  
Old 8th October 2018
Jim Ford Jim Ford is offline
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Re: Salt & Vinegar?

Quote:
Originally Posted by Keith-369 View Post
I still have all my resistors, capacitors, transistors, etc. etc. etc. all sorted and in little packets ready for use.

Why? ... I just don't like to get rid of them.
We could meet up and do 'swaps'!



Jim
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  #29  
Old 8th October 2018
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Re: Salt & Vinegar?

Quote:
Originally Posted by Jim Ford View Post
I've got an ex GPO moving coil multimeter (it may be a Taylor - I don't currently have it to hand). I got it off a stall in St Albans that used to sell surplus equipment cheap. The needle was stuck and I discovered that it was owing to a small piece of iron swarf on the magnet. I removed it with sellotape and it's been fine.

Moving coil meters are still useful for 'peaking'.

Jim
Moving coil meters are much nicer to use than digital. They might not be quite as accurate or as sensitive but they do everything that we want most of the time.

I also find that DMM's encourage over analysis where it isn't needed. Actually the high impedance of DMM's often results in erroneous results which wouldn't happen with a 20 KΩ/Volt analogue meter.
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  #30  
Old 9th October 2018
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Re: Salt & Vinegar?

I have to say I preferred to use an AVO having learnt my trade on them in the early days but when I went into field service you didn’t want to be lugging a model 8 anywhere. Still got the Fluke I used back in the 80s and 90s. Lugging a scope was bad enough.
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