tomnevue wrote: > > > I bought a Sinclair Q202G 4 can VHF duplexer. The previous owner > clearly spent a lot of time playing with the variable capacitors. 2 are > totally ruined and I suspect the other 2 are damaged because I can't > get a notch depth below 60db and it's not stable. These are porcelain > (white glass) piston style marked MAV05A30. Can anyone help me with > some replacements or source of supply? Any help is appreciated. Tom > W2MN
Maybe I can help. They were made by E. F. Johnson (don't know if they still make them), and I still might have a couple of them. The problem is I might have trouble finding them as I bought about a dozen some 15 years ago, but I'll look. They were ridiculously expensive, about US$18-20 each as I recall as they are porcelain and gold. Shoot me an email off-list. If I have any, you can have them. -- Larry W1HJF rapp at lmr dot com
