[Hammarlund] A Hammarlund newbie says hello.

[Barry Hauser]

Hi Craig and List

That's a simplex rather than a synchronous.  They say it has 20 times the
torque, which might be good to avoid stalling -- or maybe not.

One question is whether that replacement motor is more or less noisy --
mechanically or electrically.

Actually, the part I harvested from the old alarm clock looks like this
item:

http://www.merritts.com/store2/main/product.asp?ProductID=82218

As I recall, it was an H-type rotor, I'm less sure about the MS3632
designation.  Generally the field coil assembly is still good.  The small
cylindrical end of the rotor snugly fits into the field coil assembly
which is rotated so the gear meshes.  However, I had to swap the small
drive gear between the old and new rotors -- the "new" one wasn't right. 
You have to do that carefully as they are brass and rather soft, so work
around in a circle gently prying up with a suitable tool, like a
jeweler's screwdriver.

The replacement rotor is somewhat more money than the replacement motor
-- $35, and there is some chance of going wrong.

Another factor is the RPM's.  The replacement motor is 1 rpm, which
sounds right

I think I paid something like $3 for that alarm clock -- a simple '50's
pink one for a girl's bedroom, I guess.  There may be a clue from the
outside.  I believe the ones with the H-rotor will have clock model
numbers with an H- prefix.  If you can find them cheap enough, you can do
several tries before you equal the cost of that replacement rotor. 
Before going after a clock or that replacement rotor, I suggest  you pull
the clock, disassemble as needed to read whatever markings on the motor
and the rotor itself.  I'll take a peek on the e-place to see if there
are any likely candidates and privately send them to  you -- if I find
any.

Hope this helps.

Barry


On Mon, 15 Dec 2003 22:28:31 -0500 "Craig Roberts" <crgrbrts@verizon.net>
writes:
> Hello Barry and friends,
> 
> Thanks for tip on swapping Telechron motors, Barry. I was thinking 
> of doing
> just that and had planned to stalk Ebay and a few yard sales.  Then, 
> I found
> a source online for replacement Telechron-compatible motors. This 
> one looks
> like it would mate with the clockworks, doesn't it?
> 
> http://www.merritts.com/store2/main/product.asp?ProductID=81484
> 
> I'm going to contact the vendor tomorrow with some Hammarlund clock 
> specs
> and a picture and let y'all know.
> 
> Thanks again & 73,
> 
> Craig
> W3CRR
> 
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