15-07-2022, 11:00 PM
Thanks for the superb, in depth explanation Mike.
I seriously had never heard of these valves untill this post, which is also on UKVRRR forum.
So, after a lifetime ( im almost 70 ) of playing with valves I learned something again.
The small wire ended types I have are all of US decscent I guess,
because they are just minaturised versions of conventional valves. ( or nearly so )
In reading this post, I have understood that rod valves are of russian only make ?. is that correct ?.
I "suppose " that being in Australia has sheilded me from russian stuff.
I have bought capacitors and the like from Ukraine that was all ex mil russian.
Big Bulky, usually pretty ugly, but test superb and seem to last without leakage.
For instance, .1% capacitors, which if made in the west would be at LEAST 20 or 30 $ each cost a few cents.
Soldered together tin plate cans with large ugly solder terminals on mini ceramic supports, and bolt down tags
to secure said capacitor to the chassis. They are about 1 1/2" long, 1" wide and 3/8" thick.
The same solver mica capacitor of western design and manufacture is about a 1/2" square,
perhaps 1/16" thick and dipped in some for of epoxy, and costs about $10 each.
Once again, thanks for the instruction.
Joe
I seriously had never heard of these valves untill this post, which is also on UKVRRR forum.
So, after a lifetime ( im almost 70 ) of playing with valves I learned something again.
The small wire ended types I have are all of US decscent I guess,
because they are just minaturised versions of conventional valves. ( or nearly so )
In reading this post, I have understood that rod valves are of russian only make ?. is that correct ?.
I "suppose " that being in Australia has sheilded me from russian stuff.
I have bought capacitors and the like from Ukraine that was all ex mil russian.
Big Bulky, usually pretty ugly, but test superb and seem to last without leakage.
For instance, .1% capacitors, which if made in the west would be at LEAST 20 or 30 $ each cost a few cents.
Soldered together tin plate cans with large ugly solder terminals on mini ceramic supports, and bolt down tags
to secure said capacitor to the chassis. They are about 1 1/2" long, 1" wide and 3/8" thick.
The same solver mica capacitor of western design and manufacture is about a 1/2" square,
perhaps 1/16" thick and dipped in some for of epoxy, and costs about $10 each.
Once again, thanks for the instruction.
Joe
