[Hammarlund] hq110 gone dead

[Kenneth G. Gordon]

On 20 Sep 2009 at 16:32, Mike Taylor wrote:

> Hi group. Was listening to an AM net on 80 meters on my HQ110 last
> night. Was working perfectly. I turned it off for about two hours,
> then turned it back on. The clock works, the dial lights work, the  S
> meter goes full scale and stays there and the radio is dead. Bad tube?
> Where do I start? Any ideas? Thanks, Mike.

Two:

1) As someone else said here, pull and replace the 6C4 HF 
oscillator tube.

2) Check to make sure that the two-pin socket on the back 
of the receiver is shorted. That is the "mute" control, 
designed to be operated by the external contacts of an 
external coax switch.

There should be either a shorting plug in that socket, or a 
factory-installed shorting wire across those two connections 
under the chassis.

Ken Gordon W7EKB