[ARC5] GF and RU Relationships

[Mike Morrow]

The RU/GF is a current topic, so here is a listing of GF transmitters and the RU receivers that were assigned to them, plus the RU models that were not associated with a GF model.  I've also added the designated frequency coverage obtained from manuals that I have.  Information comes from manuals that I hold.  There are a lot of gaps in the frequency coverage, volts, etc.  I would appreciate additions and corrections to the listing.

  Transmitter          Receiver                      Contract
Unit  Frequency KC   Unit  Frequency KC       Volts    Date      Mfr+

--                   RU                        12                CBY
--                   RU-1                      12                CBY
GF                   RU-2                      12                CBY
--                   RU-2A 200-400             12    03-31-37    CBY
GF-1  6200-7700      RU-3  224-13575           12    02-10-34    CBY
GF-2                 RU-3A                     12                CBY
--                   RU-4                      12                CBY
GF-3                 RU-4A                     12                CBY
--                   RU-5                      12                CBY
GF-4                 RU-5A                     12                CBY
--                   RU-6                      12                CBY
GF-5                 RU-7                      12                CBY
GF-6  2200-4525      RU-8  200-400, 530-5600   12    02-23-38    CBY
GF-7  2000-9050      RU-9  200-400, 530-9050   12    10-31-38    CBY
--                   RU-10                     12
--                   RU-11                     12
--                   RU-12                     24
GF-8                 RU-13                     12
GF-9                 RU-14                     24
GF-10                RU-15
GF-11 2000-9050*     RU-16 195-13575           12    04-21-41    CW
GF-12 2000-9050*     RU-17 195-13575           24    04-21-41    CW
--                   RU-18 195-13575           12    04-21-41    CW
--                   RU-19 195-13575           24    04-21-41    CW

+ Manufacturer:  CBY=Aircraft Radio Corporation   CW=Western Electric
* Early issue GF-11/12 frequency coverage was 3000-4525 and 6000-9025

Thanks,
Mike / KK5F