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Transformer identification maybe?




 
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Author Topic: Transformer identification maybe?  (Read 811 times)
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WA1LGQ
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« on: December 13, 2017, 08:55:21 PM »

Anyone recognize this transformer? Looks like a military mod transformer. Its about 3 inches or so tall. Plate cap terminals on the top are stamped 1 and 3. Also on the top is marked GR and  also 9466. Someone made some markings on one side that give the pinout of the bottom connections 8+9 for LoZ, 6+7 for HiZ, 2 CT, and 5 Ground. Also hand marked P-P 1625 and T-58. Plus a single character that could be a 3 or a B or 8 stamped in red.
Thanks!.........Larry


* unknown transformer 1.jpg (974.52 KB, 2560x1920 - viewed 103 times.)

* unknown transformer 2.jpg (971.71 KB, 2560x1920 - viewed 80 times.)
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KB0OVD
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« Reply #1 on: December 14, 2017, 09:47:30 AM »

That is the modulation transformer from the Navy MD-7 modulator.  Part of the AN/ARC-5 system.
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Sean
WA1LGQ
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« Reply #2 on: December 14, 2017, 02:19:55 PM »

Thanks Sean, thats just what I needed. I found the manual on Bama. I was thinking of using this in my BC 37.5 hybrid semi-military transmitter project. Its a small transmitter using BC-375 tuning units. It is working now on CW but I thought a modulator would be nice, and would like to use a military rig mod transformer. Probably will sound very military, might even use a carbon mic.
Larry
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Opcom
Patrick J. / KD5OEI
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« Reply #3 on: December 23, 2017, 06:32:37 PM »

Does me good to see neat-o old parts like this used to build new equipment!
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