SY said:Yes, indeed. Especially on cheesy paper caps (which are now all the fashion rage).
Sadly I'm also old enough to remember mmf. And cps. I remember that QST, in one of their April issues (maybe 1967, 1968?), published a nomograph for cps to Hz conversions.
nhuwar said:You mean the caps covered with wax? When you would work on them and the room was warm and you touched them and it was like you sneezed on your hand.
kevinkr said:I was about 9 when Batman first hit TV (1966?) and I too still remember cps, mmfd, and the physical components themselves
- the electrically leaky wax covered paper things that often passed for capacitors
Cautions when using in a pentode circuit: The higher the grid resistance used, the greater the reduction of the insulation resistance will occur.
Do not use in power supplies.
, and those terrible carbon composition resistors with a tolerance of 20%, which always seemed to be way off the mark..
I regulary come across old tube stuff with pretty well the same drift. And of course still work. It annoys me when tubies insist on 1% tolerance......what rubbish.