| To: | "Discussion of Ten-Tec Equipment" <tentec@contesting.com> |
|---|---|
| Subject: | Re: [TenTec] Centurion- bias transistor |
| From: | "Henry Pfizenmayer" <pfizenmayer@worldnet.att.net> |
| Reply-to: | Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Mon, 12 Dec 2005 20:28:17 -0700 |
| List-post: | <mailto:tentec@contesting.com> |
UPDATE : Yep another blwn bias transistor - second since about April. Also appears the HV is OK at about 3145 V no load as measured with an external Fluke DVM , so metering is messed up again. What I would like to know is what is others experience with bias transistor failures ? Bad 3-500 ??? Hank K7HP Centurion readings after a POP > > Resting plate current at first division - about 70 ma. > Plate voltage only 2000 volts and transformer hum sounds like the supply > is loaded heavily but showing only the 70 ma on the plate meter. > No grid current > No fwd/reflected power > No difference in standby or operate > No difference QSK or PTT /VOX > |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: [TenTec] v2.0 firmware..., Steve Kline |
|---|---|
| Next by Date: | Re: [TenTec] Jupiter selectivity, Robert & Linda McGraw K4TAX |
| Previous by Thread: | Re: [TenTec] Centurion, Mike Hyder -N4NT- |
| Next by Thread: | [TenTec] Ten Tec Century 21 plus Accessories FOR SALE, Ed Karagozian |
| Indexes: | [Date] [Thread] [Top] [All Lists] |