Hello Dave, for info :
I did not tried the teflon models, but in the years 2002 I had an home made
ampli on 2200m band, with 2 x 3-500Z tubes, also 800 W output.
I used
Russian doorknob
capacitors types K15U-2 and KVI-3 without any problem. They are still avaible on
the UR4LL surplus parts site http://www.ur4ll.net/
Andy.
Sent: Thursday, August 11, 2016 9:39 AM
Subject: LF: teflon capacitors
Has anybody tried using the Russian
teflon doorknob capacitors for tuned circuits on 137 khz? I have seen some rated
at 2000pf at 16kv which will give me the 8000pf I require to tune the loop. So
far most caps get hot or self destruct when getting to 1kw, only 2/3 power.
Current at 800 w is about 20 amps. Thanks
Dave
