[Milsurplus] Collins Modulators For Sale

[COURYHOUSE at aol.com]

I think these are  for grt 3 transmitters?? 
if we can save them and get them to Arizona in the back of a truck or   car 
that is headed  here anyway    we would provide  a  home  for them
 
 
the weight of these   is  why I ended up  after a car  accident   working 
at the mars station...   too  heavy for a crip  to lift! 
 
 
Ed Sharpe Archivist  for SMECC  _www.smecc.org_ (http://www.smecc.org) 
 
 
 
In a message dated 10/13/2013 8:26:37 P.M. US Mountain Standard Time,  
iron.horses at verizon.net writes:

Dear  Military Surplus Newsletter


Could you please include the following  text in your next issue.

I have these wonderful boat anchors and would  like to find a good home 
for them and some remuneration as well if  possible.

I place the text below.




I HAVE FOR SALE  TWO SURPLUS COLLINS-MADE MD-129s MODULATORS/POWER SUPPLIES.

THEY  HANDLED LARGE VHF TRANSMITTERS IN THE EARLY 50'S. I BELIEVE THEY 
PUT OUT A  COOL 500 WATTS OF AUDIO.

I BOUGHT THEM THIRTY YEARS AGO FROM A SURPLUS  DEALER IN ARIZONA (DAVIS 
MONTHAN AFB) WHO WAS MELTING DOWN PLANES FOR  ALUMINUM.


THEY HAVE BEEN CAREFULLY STORED EVER SINCE.

THESE  UNITS HAVE LARGE XFORMERS, CHOKES AND CAPACITORS AS WELL AS LARGE 
AUDIO  SECTIONS. THEY HAVE SWITCHED MONITORING METERS AND COOLING FANS 
THAT  HUSTLE AS BLOWERS.

BOTH UNITS ARE BY COLLINS, BOTH HAVE LARGE POWER  SUPPLIES WITH POWER 
SUPPLY AND MODULATOR INTEGRATED IN THE SAME LARGE RACK  ASSEMBLY.

THEY ARE COMPLETE EXCEPT THEY DO NOT HAVE ANY OF THE  TUBES.

THE AUDIO FINAL TUBE WAS A LARGE TWIN, LIKE AN 832, BUT  HUSKIER.


THE RECTIFIERS AS I REMEMBER WERE 2B28's.


THE  CASE IS ALUMINIUM, CONFIGURED FOR NORMAL RACK MOUNTING.


THERE IS A  FULL SCHEMATIC PRINTED ON THE UNDERSIDE OF THE TOP PANEL 
USING AN  ENGRAVING PROCESS WHICH I AM AT A LOSS TO DESCRIBE.


THEY WEIGH  ABOUT 150 #'s

WOULD LIKE THEM TO GO TO A GOOD HOME AND WOULD LIKE A  REASONABLE OFFER.

TOO HEAVY TO SHIP, BEST TO PICK UP IN  PHILADELPHIA.

W3AGR

Thanks  W3AGR
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