| To: | <amps@contesting.com> |
|---|---|
| Subject: | Re: [Amps] Ten-Tec Centurion Mod. 422 Tubes Look Biased on at Turn on |
| From: | "Roy Koeppe" <k6xk@ncn.net> |
| Reply-to: | Roy Koeppe <k6xk@ncn.net> |
| Date: | Wed, 11 Jul 2018 10:37:17 -0500 |
| List-post: | <mailto:amps@contesting.com> |
Likely intermittent fil to grid short. Remove one tube at a time. Bet they're Eimac. Luck & 73, Roy "In standby at power on, reading the front panel meters Plate current reads about 50 mA should be zero Plate voltage about 2400 or 2500V should be 3100 Ig goes negative about 40 mils Four five minutes amp is trying for space heater status - plates get red and exhaust is hot." _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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