[Hammarlund] HQ-110C serial number

[Kenneth G. Gordon]

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