Try "Dans Small Parts and Kits.net" All one word (no spaces) He seems to have a lot of different trimmers listed. Ralph,W7HSG ----- Original Message ----- From: "Joe" <k1ike_m...@snet.net> To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 24, 2010 8:11:22 AM Subject: [Repeater-Builder] Spectrum Comms SCR200A 220 receiver question
I've been working on a clubs 223.96Mhz repeater that the receiver lost sensitivity. It went deaf, so much that the squelch would not even work. It appears that the plastic variable capacitors in the front end have gone bad. It was in a very damp water tank environment and this summer was just too much for it. Anyway, has anyone found a good ceramic replacement for the plastic caps that are a drop-in replacement for the plastic caps in a Spectrum receiver? I think I'm just going to change them all and be done with it. The caps in the 220 version of the receiver are 20 picofarads. The club has 5 more Spectrum receivers that will probably need cap replacement too, some on 2 meters, 440 and 220. I only want to do this once and make it an easy repair. If I found a good replacement part I'll buy a load of them in various sizes. It seems that there is a very low interest in repeater repair over the years. I get many requests for fixing repeaters, and I'm surprised that it is so hard get someone to even hold the flashlight. It's discouraging.....I would like to see some interest for the future of repeaters and ham radio. Others experiencing this? The younger hams just don't seem to have the curiosity that I had years ago. 73, Joe, k1ike
