[TenTec] Re: QSK Problems

[Phil Chambley, Sr.]

You may speculate that the NE2 won't work.  I can tell you from long
experience that it does.

Phil Chambley
K4DPK

-----Original Message-----
From: Dr. Gerald N. Johnson, electrical engineer <geraldj at isunet.net>
To: Phil Chambley, Sr. <k4dpk at romecomputer.com>
Cc: tentec at contesting.com <tentec at contesting.com>
Date: Wednesday, November 28, 2001 1:28 AM
Subject: Re: [TenTec] Re: QSK Problems


>Not likely that the NE-2 will do much protection. It will probably
>explode at less than 100 ma. current while the PA tube flash over is
>likely to be a few amps. A LARGE 50 volt zener diode may be more
>effective, but it may also protect the transistor by failing shorted. A
>50 volt or so rated MOV will probably be better protection than the
>zener diode.
>
>73, Jerry, K0CQ
>
>--
>Entire content copyright Dr. Gerald N. Johnson. Reproduction by
>permission only.