[Boatanchors] [FLBOATANCHORS] Troubleshooting linear amplifier

Mon Apr 11 09:25:12 EDT 2016

Yes I tried a GDO - the tank is not resonating correctly.
Seems to dip up around 19 MHz when set to 40m, but I need to find my other coils!

To: FLBOATANCHORS at yahoogroups.com
From: FLBOATANCHORS at yahoogroups.com
Date: Sun, 10 Apr 2016 10:43:07 -0400
Subject: Re: [FLBOATANCHORS] Troubleshooting linear amplifier

Use an RF voltmeter and/or a GDO. Check RF input also.

-----Original Message-----

From: Bry Carling af4k at hotmail.com [FLBOATANCHORS] <FLBOATANCHORS at yahoogroups.com>

To: Boatanchors <Boatanchors at mailman.qth.net>; flboatanchors <flboatanchors at yahoogroups.com>

Sent: Sun, Apr 10, 2016 9:39 am

Subject: [FLBOATANCHORS] Troubleshooting linear amplifier

I wonder if anybody can give me any tips on troubleshooting a nonresident part network in a TENTEC Centurion 422 amplifier.

It does not seem to resonate of the right frequency. I have tried many things and is coming down to possibly being a bad band switch but how do you troubleshoot that in place?

The coupling caps are OK. The plate and load tuning caps are tuning OK. It just doesn't resonate on any band.

Best regards - Brian Carling

AF4K Crystal Co.

117 Sterling Pine St.

Sanford, FL 32773

Tel: 321-262-5471

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         Posted by: Frank Moorman <fircls54 at aol.com>         

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