"Jim DiMauro" <[EMAIL PROTECTED]> made an utterence to the drakelist gang ---------------------------------------------------------------------- Hi All:
As some of you may recall, I solved my AM filter problem last week, but then I found a bad CR1402 PIN diode (one of the two low power diodes that looks like a two-ledgged transistor, mounted on the front HPF board). I had tested the other PIN doides and found all of them to be OK. The odd thing is that I had no clue that I had a bad diode. Thhe radio played well without a clue to any probelms. I only checked the diode as a side issue to a birdie problem at 14.340 and the AM filter thing. Well, I replaced the diode last night, and there's been absolutely no change in equipment performance that I can see. The birdie is still there, but that's not enough of a problem for me to tear into the radio and chase it down. The radio showed no sign of malfunction or degraded performance anywhere before of after the diode change, so I wonder what was up with the diode? Certainly a failed PIN diode would have caused something that I would notice. The closest thing to a performance issue I found is reduced power output on the 15 and 10 Meter bands, but that's usually the case with HF rigs and I don't think that's a problem (I get about 100 Watts out on 15 Meters and 75 Watts or so on 10; 150 Watts everywhere else). No change in power before or after the diode change. So, unless someone thinks there's a problem lurking somewhere inside my TR-7, I'm going to leave it be and continue to enjoy it. Thanx to all for your input. 73, Jim WA2MER ---------------------------------------------------------------------- On Behalf of "Jim DiMauro" <[EMAIL PROTECTED]> Submissions: drakelist@www.zerobeat.net Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ ----------------------------------------------------------------------
