[Amps] russian door knob caps for R Ftank circuit

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Thu, 7 May 2009 07:14:18 -0400, "chuck" <ka1mwp at comcast.net> wrote:

>I read thru about 6 months of backissues here but didn't see mention of the
>russian door knob caps that are always on ebay.
>Anyone know which ones and the markings on them are OK for hi current use?

REPLY:

I have eight of them in my homebrew 8877 amp and they are all
excellent so far. I have three 3300 pF in use for plate coupling (to
the pi-net) and HV DC bypass, and five 470 pF as padders for the load
capacitor.  

There is nothing subtle about Russian doorknobs. They are built like a
tank. I highly recommend them. Oddly, the 3300 pF use 10-32 screws and
the 470 pF use metric. Both of them came without screws, so be
prepared. 

73, Bill W6WRT