[Johnson] Failure in Valiant Audio section?

Wed, 27 Mar 2002 10:15:34 -0500

I would be more inclined to suspect the mode switch, probably having
been changed from CW to AM or reverse while transmitting many a time.

In any event, it's very easy in this case to follow the HV through the
circuitry. Should be a quick find with a voltmeter.

73, Guy.

----- Original Message -----
From: "Gary Schafer" <[email protected]>
To: <[email protected]>
Sent: Wednesday, March 27, 2002 10:01 AM
Subject: Re: [Johnson] Failure in Valiant Audio section?

> If the secondary of the mod transformer opened there would be no HV
to
> the final in the am mode.
>
> 73
> Gary  K4FMX
>
>
> [email protected] wrote:
>
> > I would suspect that it is no a modulation transformer failure.
When
> > I lost the mod tranny in my valiant, anytime HV was applied ( unit
> > put in transmit) it would blow fuses because of the excess plate
> > current...  I would look elsewhere.
> >
> > however, my wife informs me that I am often wrong..
> >
> > Ronnie
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> > http://mailman.qth.net/mailman/listinfo/johnson
>
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