[Heathkit] HL-2200 problem!

[Chuck Penson]

You could have a lot of ohms living in there. 


> On Nov 23, 2013, at 7:40 AM, "K5MYJ" <macklinbob at gmail.com> wrote:
> 
> "residents ? What kind of residents ?
> 
> Bob Macklin
> K5MYJ
> Seattle, Wa.
> "Real Radios Glow In The Dark"
> ----- Original Message ----- From: "Bry Carling" <bcarling at cfl.rr.com>
> To: "Alexander N. Gerli" <ac1wye at gmail.com>
> Cc: <heath at puck.nether.net>; <heathkit at mailman.qth.net>
> Sent: Friday, November 22, 2013 9:43 PM
> Subject: Re: [Heathkit] HL-2200 problem!
> 
> 
>> 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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