[Hammarlund] HQ-110C serial number

[Les Locklear]

Never having owned an HQ-110, this is an educated guess.........look on the rear panel for stamped numbers. All the HQ-series I've owned are like that with the exception of the late production, Mars Hill and Giannini Scientific. They used matalized labels on the rear panel.

Les Locklear

24 hours in a day, 24 beers in a case.  Coincidence? *  *I think not."
~ Stephen Wright   *


----- Original Message ----- 
From: Kenneth G. Gordon 
To: David Langley 
Cc: Hammarlund at mailman.qth.net 
Sent: Friday, June 17, 2011 10:40 AM
Subject: Re: [Hammarlund] HQ-110C serial number


On 16 Jun 2011 at 23:05, David Langley wrote:

> Ken, I have several 110 chassis that have that crystal freq., and one
> that is 2580. The one with 2580 has a serial number in the 8K range,
> (late production). Those having a crystal in the 3490, serial numbers
> range from 273 to 377?, of those, every one has a different band
> switch setup and the IFs are different in the area of T1 & T2. I would
> guess your receiver is in the first production run.

Thanks, Dave. 

The reason I am asking is that I want the correct schematic diagram. I have 
one diagram which shows the 3.49 Mhz crystal, and a second set of 
diagrams which show the 2.58 Mhz crystal.

I am hoping that the one with the 3.49 Mhz crystal fits my receiver best.

I suspect my receiver is from the very first production run.

As I said, I can find NO serial number anywhere.

Where do your serial numbers appear?

Can you describe the differences in the bandswitch setups for me, please?

Ken W7EKB
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