I have QSK and step start boards available. See...
http://www.w0lx.com/ccportals/TL922APage3/tabid/218/Default.aspx
Email me for prices.
73 Jim W7RY
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From: "Vic K2VCO" <k2vco.vic@gmail.com>
Sent: Saturday, August 13, 2011 2:22 PM
To: "Amps reflector" <amps@contesting.com>
Subject: [Amps] TL-922 --> 21st century
> I have a stock TL-922 that I want to update. I'm going to do the
> following:
>
> -- step start
> -- vacuum relay QSK
> -- automatic bias switching to cut off tubes when not keyed
> -- check / adjust filament voltage
> -- replace VHF choke in plate circuit with glitch resistor
> -- improve bypassing of HV and filament power leads
> -- no, I'm not doing anything to the parasitic suppressors except checking
> the resistors!
>
> A question:
>
> The grids are grounded via a parallel combination of 3 220 pf capacitors,
> a 4.7k resistor
> and a 470 uh choke. I don't understand this. I am tempted to just strap
> the grids to
> ground. What were they thinking?
>
> --
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco/
> _______________________________________________
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> Amps@contesting.com
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