Patrick,
Plenty of work, but a lot of fun.
The rig will likely be worth quite a bit when you are done,
maybe pay for retirement!
Brett
N2DTS
>
> I have been working o that KW I rescued from the scrapyard.
>
> figured out the screen supply wiring that had been cut and the missing
> connections for the RF deck, got the bias and screen supplies up,
> filament supplies up, figured out keying, inrush limit, HV rectifier
> system, and interlocks including the airflow switch. I did discover it
> keys in part by turning the 4-1000 screen volts on and off.
>
> still have to:
> `replace broken chokes in plate power supply.
>
> `upgrade power supply capacitors.
>
> `remount rectifier sockets a bit lower to have the 575's clear the
> variacs with more ease.
>
> `figure out some loose wires connected to some HV resistors.
>
> `recondition modulation transformer ('cook' in a test fixture to heat
> it up, drive any moisture out, and then patch a couple places in the
> insulation.).
>
> `find some better 304TH's or 304TL's (mine have one filament out).
>
> `find plate and grid caps to fit the 304's
>
> `find a better 4-1000A.
>
> `the turns counters on the dials need attention.
>
> `devise a T/R assy (the original was apparently a relay-based
> controller for the rig)
>
> but most of this will be easy as the cut wires in the screen supply
> harness were the hardest, several were interlocks or overloads.
>
> I felt very good to put the old 4-1000 in the unit, and being able to
> adjust the filament voltage, etc., even if that tube is bad, it still
> lights up ok.
>
> The web page is still at:
> http://208.190.133.201/tuckerkw/tucker_transmitter.html
>
> Patrick
> KD5OEI
> _______________________________________________
> AMRadio mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/amradio
