Is there any reason I couldn't use a poly cap like the ones used in the
vfo in a lowpass filter?
I'm assembling a version 3 PA board from Sunil and I need a 560pf cap
for the lowpass filter and all I have are poly caps at that value.
The component layout is a work in progress. I need some higher current
diodes and I'll probably use 35 volt electrolytics.
I made my first contact today with a second bitx kit. The one that is
in http://golddredgervideo.com/kc0wox/bitx3/finalassembly.htm I'll add
a page showing the final product durning the week.