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If the contacts were welded shut the receive would have been full strength. This would have shorted the RF IN and RF OUT connections together. I'm thinking I may have burned out a set of contacts, not allowing the receive path to close. I have had no problems since putting in new higher current...

If you can afford an Aplha 9500 you wouldn't need to ask all these questions. Buy what you can afford. I use a Yaesu FL2100B. 600W out 240V and works fantastic and didn't break the bank. If money is no option, buy an Alpha or OM3500 and crush the band. Driving power varies with amp. A little...

I replaced the relays with a couple of TE Connectivity units (DigiKey Part # PB968-ND) and all seems to be working fine. I used two DPDT relays, and each relay has the contacts bridged to double the current capacity. This will give me a total of 16A capacity per set of contacts, where the...

The relays were brand new. May attempt to reinstall. Just want to nail down issue first.

Amp works normal only keying when I key the radio. No plate current on meter in receive so the TX is not kicking in. Only receive signal drops. VE3TMT

Greetings, About a month ago I pulled the loud stock relay out of the amp and replaced it with a couple of signal relays. All was working fine, but then about a day later I noticed when I flipped on the "OPERATE" switch, the receive n the radio would drop significantly. I have since put the...