[Hammarlund] HQ-120X Restoration

[Carl]

You win todays gold star Ken!

Yep, and it was even described for the 129 in an early 60's CQ. I can dig up 
the info if you want altho Im sure it is somewhere online already.

Carl

----- Original Message ----- 
From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
To: "Carl" <km1h at jeremy.mv.com>
Cc: <Hammarlund at mailman.qth.net>
Sent: Saturday, February 19, 2011 2:28 PM
Subject: Re: [Hammarlund] HQ-120X Restoration


> On 19 Feb 2011 at 13:58, Carl wrote:
>
>> Its main problem will be poor sensitivity on the 6th band due to tube
>> choices. Switching to a 6SG7/6K8 up front will be some help or go full
>> out with the 6X8 mixer mod.
>
> Hmmmm....the 6X8 is a triode-pentode. I assume you use the triode for the
> oscillator, and the pentode for the mixer section, getting rid of that 
> horribly
> noisy 6K8. Is that correct?
>
> And do you use the 6SG7 with the 6X8?
>
> Ken W7EKB