[Heathkit] HL-2200 problem!

[Bry Carling]

If you have a grid dip meter you can check the plate circuit and the grid circuit for residents on any given band.

Bry

Bry Carling
http://af4k.com
Sent with my iPhone 6


> On Nov 22, 2013, at 11:18 PM, "Alexander N. Gerli" <ac1wye at gmail.com> wrote:
> 
> Hi, gang,
> 
> Gads, Murphy is having a ball in my shack...
> 
> I'm firing up my restored HL-2200 for the first time with a nice fresh set
> of tubes. Both the old tubes that came with it had grid-to-filament shorts
> (BANG and BANG).
> 
> I was careful when I rebuilt the tank. I installed an original SB-221 tank
> coil and carefully rewired it to the tank coil taps. Reinstalled the Tune
> and Load caps and the doorknobs and the parasitic chokes. Got everything
> cleaned up and looking like new.
> 
> I ran the tubes with no load for about four hours to cook them a bit.
> Decided to put some drive to them. Up to 200MA, and dipped the plate. Whoa!
> the Tune condenser had no effect at all and NO output, so I shut her right
> down and got out the Manual.
> 
> The "In case of" section mentions checking the rear bandswitch wafer to be
> sure it's set right. Well, it's possible that I didn't set it right, but I
> remember reading the part about making sure the wafer contacts Pins 6 and
> 12 only when the front wafer (input) is set to 80M. I don't have it apart
> yet, but will do that this weekend. That makes sense to me that the tank
> wafer might not be set right. The other possibilities are L7 on the input
> side being installed wrong, but I didn't work on any of the input wiring;
> it looked fine to me and original. Or, the T/R Relay might be smoked? I
> doubt that, because the transceiver still hears fine on Rx. Now, that
> doesn't mean the Tx contacts might be bad.
> 
> Now, with those two "BANGS" with the old tubes, it it possible that I might
> have lost one or both of the doorknobs? Or, maybe the inline choke going
> from the HV feedthrough to the big plate choke? I was able to draw Ip, so
> the metering is fine. Anyone have any thoughts on this?
> 
> 73, Sandy AC1Y
> 
> 
> 
> 
> Alexander N. Gerli, Sr.
> 548 Allred Mill Road
> Mount Airy, NC 27030-2202
> 
> Scotsmen walk about 900 miles each year.
> A Scotsman drinks around 45 gallons of Whisky a year.
> Scotsmen get about 20 Miles Per Gallon.
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