Re: [Drakelist] Possible problem with T-4XC xmtr

2010-02-25 Thread Howard Traxler
ard Knoppow" <1oldle...@ix.netcom.com> To: "Howard Traxler" Sent: Monday, February 22, 2010 9:55 AM Subject: Re: [Drakelist] Possible problem with T-4XC xmtr - Original Message - From: "Howard Traxler" To: Cc: "Howard K Traxler" Sent: Sunday, February

Re: [Drakelist] Possible problem with T-4XC xmtr

2010-02-23 Thread Dennis Monticelli
Howard, Hmmm. Give the loud pop and subsequent drop of output power, I'm wondering if you had a brief internal arc within one of your final tubes. A violent arc that involves the cathode could easily destroy a region of the cathode coating and thus reduce peak emission, yet allow the tube to con

[Drakelist] Possible problem with T-4XC xmtr

2010-02-22 Thread Howard Traxler
Hi all, don't know that this question went out on the list: Friday I was tuning up my T-4XC on 80M. Heard a very loud POP came from somewhere behind the front panel. No smell of smoke or oazone. Never tune for more than 4 or 5 seconds at a time and never off-resonance more than 1 or 2 seconds