[GreenKeys] Model 26 Update

Ed Sharpe Archivist for SMECC via GreenKeys greenkeys at mailman.qth.net
Thu Feb 19 00:18:56 EST 2015


Doug-   so when you ran it  before  it ran ok with just  the one  coil.
 
any difference   with the  2 coils active!? more info?
 
All the  26   activity  will get  me  to move  ours to the  top of stack 
for  work!
 
Congrats on your progress.
 
Ed#  _www.smecc.org_ (http://www.smecc.org)  
 
 
In a message dated 2/18/2015 8:40:48 P.M. US Mountain Standard Time,  
ka2wft at arrl.net writes:

I got  working on the newly acquired Model 26 this afternoon primarily to 
replace  the power switch wiring.  That went relatively smoothly, and I 
also  rewired the break button.  The previous owner had everything wired  
with shielded cable, and used the center conductors of two cables for  
the two leads to the power switch ... strange.  And those center  
conductors were 22 AWG.  :/  The break button was also wired  normally 
open.  Hmm.

While I had the thing on the bench I got  looking at the selector magnet 
wiring as it didn't match what I found a  Bell System BSP online, but it 
appears to be original on the  machine.  In looking at the magnet wiring 
I found that one of the  selector magnets was open!

It appears that something hit, punctured,  whatever the one coil.  The 
cloth wrapper was already unwrapped, but  closing it up there's a hole in 
the wrap that matches up with the abrasion  in the coil.  Great.

With some patient (and gentle) poking around  while using my LED 
magnifier lamp I found two ends and had continuity to  the leads on the 
coil.  So I had at splicing in fine piece of wire --  actually a strand 
from a stranded wire, and actually got it tacked  in.  Pic attached of 
the repaired coil.

I buttoned it all up  and ran it on ITTY for about an hour and afterward 
the repair was still  holding.

Next up is to clean the cabinet and keep on lubing it ... I am  sure 
there are places I have missed!

73,

Doug,  KA2WFT


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