[ARC5] BCB GF Coils and Comparisons

[David Stinson]

There was some interest  in the versions of GF coils.
Here are some photos.
SCR-183 coil plate
http://home.netcom.com/~arc5/COILS/20151114_123839.jpg

GF-1 coil plate
http://home.netcom.com/~arc5/COILS/20151114_123915.jpg

GF-2 coil plate
http://home.netcom.com/~arc5/COILS/20151114_123859.jpg

GF BCB coil #1 (Thank you, Mike)
http://home.netcom.com/~arc5/COILS/20151114_124008.jpg

GF BCB coil #2
http://home.netcom.com/~arc5/COILS/20151114_123928.jpg

GF-1, GF-2 coil comparison.
http://home.netcom.com/~arc5/COILS/20151114_124052.jpg
http://home.netcom.com/~arc5/COILS/20151114_124142.jpg
Note that between 1 and 2, the coil positions were swapped.

I have GF-1 transmitter with GF-1 coil
and a GF-5 transmitter with GF-2 coil.
GF-2 was a complete overhaul of  the GF and
GF-1 design, the later-version transmitters being, 
with small changes, like the GF-2
I find it interesting that the GF-1 and GF-2 coils 
were produced on the same contract and dates.
Upgrades made during the production,
as was done with the ARC-5 VHF sets?

Photos of the GF-1 transmitter plates included 
for interest.  
http://home.netcom.com/~arc5/COILS/20151122_110145.jpg
http://home.netcom.com/~arc5/COILS/20151122_110118.jpg

Bad photo of the rear of three transmitters:
SCR-183 on top, GF-1 on the left,
GF-5 on the right.
http://home.netcom.com/~arc5/COILS/20151122_110334.jpg

73 DE Dave AB5S