I have a receiver looks the same as the well known command receivers (BC-453, BC-454, BC-455), but has the following main differences:

- it is grey instead of black
- it works at VHF (108-135 MHz) instead of HF
- it has loctal tubes (14A7, 14R7, 14F7) instead of octal tubes (but has one 12A6)
- it also has some miniature tubes too (9002 and 9003)
- it is built by Aircraft Radio Corporation (ARC)
- it is marked R-13B but it should be nearly identical to the R-15/R-509, and similar to the R-19/R-508/R-507

I searched the Internet for the schematic diagram with no success. Does anyone have it and would available to make a scan for me ?

Thanks and 73

Tony I0JX

Tony, What you have is the receiver for the ARC Type 12 radio system.
The military called the system the AN/ARN-30. They look very much like
command sets but are not interchangeable (racks, etc.). I have all the
books for the Type 12 system up to, and including, the
crystal-synthesized ARN-30D. I will scan the receiver schematic for you
and send it out ASAP. BTW, the Type 12 is designed to be set up for
either 12 or 24 volts, via filament jumpers. 24v ARC-5 dynamotors will
work with Type 12 equipment. Back to you later.
de Jeep/K3HVG

Antonio Vernucci wrote:
I have a receiver looks the same as the well known command receivers (BC-453, BC-454, BC-455), but has the following main differences:

- it is grey instead of black
- it works at VHF (108-135 MHz) instead of HF
- it has loctal tubes (14A7, 14R7, 14F7) instead of octal tubes (but has one 12A6)
- it also has some miniature tubes too (9002 and 9003)
- it is built by Aircraft Radio Corporation (ARC)
- it is marked R-13B but it should be nearly identical to the R-15/R-509, and similar to the R-19/R-508/R-507

I searched the Internet for the schematic diagram with no success. Does anyone have it and would available to make a scan for me ?

Thanks and 73

Tony I0JX

"Antonio Vernucci" wrote in message
...
I have a receiver looks the same as the well known command receivers
(BC-453, BC-454, BC-455), but has the following main differences:

- it is grey instead of black
- it works at VHF (108-135 MHz) instead of HF
- it has loctal tubes (14A7, 14R7, 14F7) instead of octal tubes (but has one
12A6)
- it also has some miniature tubes too (9002 and 9003)
- it is built by Aircraft Radio Corporation (ARC)
- it is marked R-13B but it should be nearly identical to the R-15/R-509,
and similar to the R-19/R-508/R-507

I searched the Internet for the schematic diagram with no success. Does
anyone have it and would available to make a scan for me ?

That also had a companion transmitter that was, I believe four channel tall
controlled. I had a pair, or still have buried in the garage that I was
going to convert to 2 mar AM, 30 or so years ago.I think the final on the
TX was a 5763. I will see if I still have any schematics on them.

Leanne W1WXS
former avionics person among other things

You are quite correct. The Type 12 included two, 5-channel transmitters
in the VHF region and transverter for the MIL UHF band. The receive
output of the transverter went to (of course) the VHF receiver. I'll
also add that one earlier Type 12 receiver went from 118 to 148 MHz. At
my peril, here's a basic list for the Type 12:

R-10A receiver 520-1500 kHz
R-11A receiver 190-550 kHz
R-15 receiver 108-135 MHz
R-19 receiver 118-148 MHz
R-20 receiver 75 MHz (Mkr Bcn)
T-11A/b Trans. 116-132 MHz 5-channels
T-13A/B Trans. 132-148 MHz 5-channels
TV-10 UHF Transverter 228-258 MHz (8-channels in any 4 MHz wide band)
rx output to R-19 receiver (tunable).

ARC made a "Gonset" type portable package as one of the first FAC radio
sets. The later ARN-30 and 30D sets were used for VOR/ILS in acft up
into the late 60's. The ARN-30/30D included a B-10/13 VOR/ILS converter
and the IN-10 VOR/ILS indicator. There were probably over 25-30
different control boxes associated with the Type 12 series radios, never
mind the endless custom variations done by the ARC factory installations
group. Cessna Aircraft's acquisition of ARC ended ARC's renowned
quality....

One last comment, there was a genuine ARC-5 or SCR-274N receiver that
tuned the VHF aircraft band. It had the standard ARC-5-type front panel
dial, etc. They are rare as hen's teeth. I saw one in about 1959 and
none since!

"K3HVG" ha scritto nel messaggio ...
You are quite correct. The Type 12 included two, 5-channel transmitters
in the VHF region and transverter for the MIL UHF band. The receive
output of the transverter went to (of course) the VHF receiver. I'll
also add that one earlier Type 12 receiver went from 118 to 148 MHz. At
my peril, here's a basic list for the Type 12:

R-10A receiver 520-1500 kHz
R-11A receiver 190-550 kHz
R-15 receiver 108-135 MHz
R-19 receiver 118-148 MHz
R-20 receiver 75 MHz (Mkr Bcn)
T-11A/b Trans. 116-132 MHz 5-channels
T-13A/B Trans. 132-148 MHz 5-channels
TV-10 UHF Transverter 228-258 MHz (8-channels in any 4 MHz wide band)
rx output to R-19 receiver (tunable).

ARC made a "Gonset" type portable package as one of the first FAC radio
sets. The later ARN-30 and 30D sets were used for VOR/ILS in acft up
into the late 60's. The ARN-30/30D included a B-10/13 VOR/ILS converter
and the IN-10 VOR/ILS indicator. There were probably over 25-30
different control boxes associated with the Type 12 series radios, never
mind the endless custom variations done by the ARC factory installations
group. Cessna Aircraft's acquisition of ARC ended ARC's renowned
quality....

One last comment, there was a genuine ARC-5 or SCR-274N receiver that
tuned the VHF aircraft band. It had the standard ARC-5-type front panel
dial, etc. They are rare as hen's teeth. I saw one in about 1959 and
none since!


Thanks Jeep,

continuing to browse the Internet, I found some pages stating that my R13B is equal to ARC type 12 receivers, others to type 15.

Anyway I believe that differences are not great, so, provided the tube set is the same, any diagram would do.

Presently I am stuck, as reverse engineering the diagram from the circuit would be way too time consuming.

Thanks and 73

Tony I0JX