Jim, You might be thinking about the 33pf(? value) on the collector/emitter junction on the flat pack RF transistors. Or the leaching problem that is mentioned in the service manual. I always replaced the chip caps on the base/emitter and collector/emitter junctions when we had to replace a defective transistor. There were PK-xxx packages for replacing the lower level transistors that included the transistor, chip caps and solder.
Milt N3LTQ ----- Original Message ----- From: Jim Russell To: Repeater-Builder@yahoogroups.com Sent: Friday, September 28, 2007 11:24 PM Subject: [Repeater-Builder] Micor UHF PA Ok guys help this old man out. I worked in a Motorola Shop back in the 80's. I seem to remember a problem with Micor UHF PA's where the solder connection on a perticular chip capacitor would go bad causing the power to drop to next to nothing. I think the solution was to resolder the cap with silver solder. Do any of you know of a better solution. I have one of the animals acting intermittant. Jim WK5Y