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THE AM BULLETIN BOARD => Technical Forum => Topic started by: K3ZS on November 18, 2008, 04:47:08 PM



Title: Hammarlund Clock Shaft Extensions
Post by: K3ZS on November 18, 2008, 04:47:08 PM
I give up searching the web.    The Hammarlund HQ-110 I just fixed up has a working Telechron clock.    The setting
shaft isn't long enough to go through the rear of the cabinet.   Anyone know where I could get some sort of extension shaft for it.   I have seen the 1/4 inch ones for variable caps.   This is about 1/8 inch or less.


Title: Re: Hammarlund Clock Shaft Extensions
Post by: Ed-VA3ES on November 19, 2008, 12:39:02 AM
I give up searching the web.    The Hammarlund HQ-110 I just fixed up has a working Telechron clock.    The setting shaft isn't long enough to go through the rear of the cabinet.   Anyone know where I could get some sort of extension shaft for it.   I have seen the 1/4 inch ones for variable caps.   This is about 1/8 inch or less. 
Go to any good hobby shop, and look at K&S metal tubing, or  Plastruct plastic tubing.  Various sizes are available in both.


Title: Re: Hammarlund Clock Shaft Extensions
Post by: K3ZS on November 19, 2008, 09:01:33 AM
Thanks Ed, never thought of that.   We have a local shop that has those sort of things.   I should have known, I have built some RC planes in the past.


Title: Re: Hammarlund Clock Shaft Extensions
Post by: W3SLK on November 19, 2008, 09:07:12 AM
Ed said:
Quote
Go to any good hobby shop, and look at K&S metal tubing, or  Plastruct plastic tubing.  Various sizes are available in both.

Or you can find the old electric alarm clocks, (Westclock comes to mind) I think they used the same shaft as that of the Hammarlund.


Title: Re: Hammarlund Clock Shaft Extensions
Post by: Pete, WA2CWA on November 19, 2008, 09:27:29 AM
You never mentioned what the shortfall length was. Does it just come to the back end of the cabinet and doesn't protrude through the back, or is it further in? Some of the Telechron clock shafts required an end adjusting knob with a longer type connecting shaft. i.e. typical clock knobs found on lots of clock radios.

EX:
(http://classicironparts.com/store/images/C7ZZ-15032-A.jpg)

(http://showcase.netins.net/web/1970gtx/Partreferences/clocktachknobwscrew.jpg)
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