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Turnip:
Hi Davy,
Met those shrink wrapped tellies, mostly with an 'Instruction Book' consisting of one page of nothing some years ago.

White van arrived at sites, and folks would kill for bargains where they mostly didn't go or were incomplete.

Thanks Les, but have noticed that some Quuq folks feel that 'old' is old. Mentioned my age to a certain Quuq Hero in passing and he was shocked that I would want to still try mend, what with my pensions and a heating allowance.

Find that after a life of trying mend things, don't want to stop 'till can't find my way back from the supermarket, and even then - Chris.

OldLes:
Chris, I don't know if I win on bragging rights, only being 73, but if I can still ride my motorbikes (and I can and do), then I am sure I can exercise my brain on a TV. I no longer work on anything for money (but will sell stuff if I can), so if anybody wants a favour, it boils down to do I like them or not. If not, no chance!
Friday afternoon I was trying to check the ignition pickups on my Cagiva using a little Tek 212 'scope. Problems with triggering, plus difficulty in keeping the engine from racing or stopping (the problem), so taking screen shots at the same time required an impossible 6 hands. I will get my HP mains battery 1703 storage scope on it next when I have fitted some new "cobbled up" batteries. (wrong physical size).
Spent the last week sorting through my 500-600 valves. Many TV, many general purpose and scope valves. Like the panels, many will go to scrap, but I have quite a few ECC83s, which I understand the audiophools pay a lot for, so it will be off to Ebay with those. Nearly finished my database of them. No rest for the wicked, but it is that that keeps us old'uns young!
Les.

Turnip:
Hi Old Les,

Guess you do, being only a young 72 myself but gave up my motorbikes some years ago, as but for a few days in the year they are cold and wobbly, and formerly used them mostly for late in life romance with the usual chocolates.

Used to have oodles of valves then met folks at recycling/social sites who thought they might make a pound on the Flea.

Realised that only audio stuff makes anything so handed over all my EF50s and valve telly stuff, some several boxes - No ECC83s though, as natch hadn't any.

Think have pair of PX4s somewhere after trying construct an audio amp with an efficiency of more than 5% - Couldn't of course, with 500v HT and a grid drive of at least 100v, got 5 clean Watts out of a pair. Was trying match with a couple of EL84s for stereo in a 50s RGD radiogram update.

Total failure of course, so recycled - esp as box had woodworm - Chris.

OldLes:
Ah, but I do have some ECC83s! New and used, and I have a Telequipment CT71 curve tracer, and with an external 6.3 volts, I can test all those double triodes. I hope my prospective customers will value a phot of charcteristic curves, and pay for that privelidge. They may even get matched pairs at extra cost.
I have ECC81, 82, 83 and 88s. May just realise a few bob.
Wouldn't a few PL509s have given a good clean and powerful audio amp?
Not into circuit design myself, sometimes I barely understand simple circuits, but usually muddle by.
Cheers, Les.

Turnip:
Hi Les,
You're quite right - PL509s would have done the biz, but not really 50s. Seem to recall making an amplifier using 6 x PL2509 in parallel push-pull with a voltage doubler power supply giving some 600v supply and a likely output of a Kilowatt or two but didn't have a suitable output trannie above 30 Watts at the time - Fun though.

Thinking Scopes, got one of those Chinese LCD ones that do most everything, and for 50 Quid. Turned it on and found it quite wonderful, but haven't got around to using it as it's a bit complex.

Agree that design is a problem - when you've sorted everything you know, something always turns up to prove you know nothing - never deterred though, as might eventually win through - Chris.

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