[Hammarlund] Home brew Hammarlund type dial drive

[Comarow, Avery]

The Handbook had a number of Novice-level receiver projects back in the '50s and '60s, IIRC, that utilized a scratchbuilt friction drive based on a rubber grommet contacting a shaft or circular dial. I'll take a look tonight or tomorrow to see if memory serves correctly.

Avery W3AVE



-----Original Message-----
From: Hammarlund [mailto:hammarlund-bounces at mailman.qth.net] On Behalf Of Brian Burns
Sent: Tuesday, November 04, 2014 11:04 AM
To: hammarlund at mailman.qth.net
Subject: [Hammarlund] Home brew Hammarlund type dial drive

Hello all,

 

Has anyone tried making a friction type dial drive as used in so many of the Hammarlund receivers? I have a homebrew project coming up, and would like to use that system. I adjusted the bandspread drive on an HQ-145 once, but that was a while back, and I don't remember the details.

 

Cheers,

 

Brian Burns 

 

 



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