As Gary has already mentioned anything that's respectful of each other and doesn't break the forum rules is all good.Charlie Tango forum rules
Capacitors are always an interesting one in that there always seems to be a bone of contention regards them.
The can of worms for the radio interest is capacitors and antennas, for the guitar community capacitors and strings, (OK pickups etc. too but still wire windings!) and with 'audiophiles' capacitors and 'oxygen free copper wire' amongst other things......
So basically caps and bits of wire.
My view on electrolytics is basically the same as any well intended electronics engineer and the following link provides some insight :-
(Ignore the fact that it's a commercial establishment as I'm not endorsing them in any way, just an interesting article provided.)
You get similar stories with other types of capacitors too, the Ham digging through the silver-mica capacitors at rallies, are high voltage modern ceramics any good or not and in the other community interests such novel notions as the colour of the capacitor casing. (Orange dips anyone?
So long as everyone is enjoying themselves who are we to argue? I just dislike it when it's a snake-oil con to rip people off monetary wise.
Your 'Echo II' radio sounds interesting. Would that be an Echo/Praha/Bratislava valve type of affair?
I have (had) an old valve Jubilee II built in a similar vein as a universal unit that a manufacturer could house in multiple style casings. I utilised the poor-man's-variac when I first fired it up with series incandescent light bulbs after some brief low cycle power-ups to reform the capacitors. (Another point of contention.
I did have to replace the missing valve rectifier with modern day semiconductor types but it sounded sweet as anything when fully working. Every one of the capacitors were all original and still functioning after all that time. (70 years!) Unfortunately something I'm known for is stripping stuff apart for spares if it has no real intrinsic value....the Jubilee was pumped out in their thousands so as I needed a valve for an old oscilloscope amongst some other choice parts she now languishes as a stripped carcass.
I'm still in the middle of making a receiver out of what's left of her though for some 'Ham' fun.
You shouldn't have too much trouble scouring the internet for information on it but as obvious from stripping mine for spares I'm not sure about vintage component suppliers. We used to have a good open market style economy where you could buy vintage components or even whole equipment from market stalls. That's seems to have been relegated to Ham radio rallies nowadays and often with over the top collector style prices! There used to be such an economy in Europe with open market style electronic fares but not sure if they still run? It used to be a popular Russian pastime and many former communist states ran them too.
As for any other type of modern electronic component supplies I usually plump for whoever has it but without an overinflated price. You'd be amazed at how many buy cheap Eastern/Oriental made components and resell at huge profits!
(Recently I bought 10 SPDT toggle switches from abroad for the same price as a single one in the UK! Including shipping!!)
Otherwise I hunt down the usual places like eBay but even then come across surprises like bagging three vintage triple air spaced variable capacitors recently.....for 99p! (OK plus £5 shipping but what a bargain!)
Back in the day I'd pick up the phone and put it on account or stick it on the company AmEx. (Multinationals, Semiconductor manufacture, R&D etc.) Those industries change as quick as anything else though fleeing to cheaper labour markets and once you're apparently 'old' and definitely when you're crippled you're pretty much worthless to society.
Thank God I've got my radio interests.
Great posting there Mike, let's hope it doesn't fall into dissent in any way.
All the best,