The UT cable center conductor sprung up off the
input pad of the LPF board breaking the melted solder
connection. Unfortunately now it only does 140 Watts,
so one or both FETS must have got damaged.
Maybe the combiner-isolator too.
73 Ron WZ1V
----- Original Message -----
From: David Olean <k1whs@metrocast.net>
To: wz1v@sbcglobal.net, vhfcontesting@contesting.com
Date: Tue, 4 Jun 2024 22:03:02 -0400
Subject: Re: [VHFcontesting] 222 Activity night
> Hi GB Ron
>
> check the DC switch that applies power to the FETs. It is on a small
> board inside the amp chassis and near the larger control board. A P
> channel FET acts as a DC switch. It removes 50 VDC during RX.
>
> Dave K1WHS
>
> On 6/4/2024 8:41 PM, Ron Klimas WZ1V wrote:
> > 222 Night started out great, then disaster struck.
> > Was completing a CW contact around 8:15pm,
> > when suddenly heard a fizzle, and the amp was dead,
> > followed by a slight scent of smoke.
> > Managed to get the following in the log:
> > K2RMX FN20, N2RC FN21, N1JEZ FN44, N1SV FN42,
> > WA3NUF FN20, K3GNC FN20, N1GLT FN42, K1PXE FN31,
> > W9KXI FN12, W2TMA FN30, WA3EOQ FM09, N1ROZ FN32,
> > WW1Z FN42, K1WHS FN43, W1FKF FN43, K1ZK FN34,
> > N1LHP FN42, W1AIM FN34.
> > I'm pretty bummed, so might not be on this weekend.
> >
> > 73 Ron WZ1V
> >
> >
> > _______________________________________________
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> > VHFcontesting@contesting.com
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>
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