Warren, K1BOX, displayed homing Beacon Equipment used by both the USN and the Army AF. An aircraft carrier would transmit a signal between 234 & 258 mc from a rotating antenna. Each 30 degree segment of rotation keyed a 710kc signal with a different morse character that then modulated the VHF carrier. When doubly detected the pilot could determine his bearing from his ship. An enemy radio intercept with a conventional receiver would detect only a CW carrier. I'm not sure why the AAF used this equipment, buts its clear they did.
Left to Right:
Power adaptor to steal pwr from ARA, BC-946 or R-24/ARC-5 rceiver.
ZB, later called *R-1/ARR-1 Homing Beacon Receiver. It's output fed into a BC band receiver.
*TS-1/ARR-1 Test Set. Gold plated cavity, 246 mc modulated by 710 kc.
*C-1/ARR-1 Control Box (in front)
*R-4/ARR-2 Receiver with *DY-2/ARR-2 Dynamotor. This was a complete receiver with audio output.
C-38/ARC-5 Pilots Control box. Controlled up to 3 ARC-5 receivers, MF, HF or VHF, plus the *R-4/ARR-2.
On top of the *R-4 is a *C-37/ARR-2 control box that could replace the flex shafting with a DC motor.
|Lenard, WA3DBJ gave us a look at some WWII German equipments, and contrasted them with American gear of similar function: 3-6 MC aircraft receiver type FuG10-EK on top of a BC-348. Kleinfunksprecher d, or "small speaking radio, frequency range d." ( The Germans nicknamed it "Dorette.) compared to BC-611. On the right is a man-packable teletype terminal.|
|The Kw.Ea superheterodyne covering 1 to 10 MHz was designed around 1938. This sophisticated set as two RF amps and 2 IF stages and uses two-volt RL2P800 tubes in all stages. The push buttons, at the upper left, allow trouble shooting by monitoring individual tube currents.|
|K2WI's infared viewer
used for Morse signaling during WWII. Rob's grandfather, Leslie
Flory, was inolved with the development of this gear at RCA. The
display included some his patent documents.
|Dale, KW1I's RACAL TRA.906 SQUADCAL HF Transceiver is fully waterproof, lightweight portable packset that operates AM, SSB and CW from 2-7 mHz on 29 crystal controlled channels. This model HF set is rumored to have been used by Iraqis during Desert Storm. The transciever in a canvas back pack is shown sitting on a vehicle adapter that converts 12 VDC to the 18 VDC used by the transceiver. The adapter also provides an external speaker and audio amp.|
Another KW1I set, a Hallicrafters TR-9, HF AM/CW solid state backpack radio.circa 1968. Separate VFOs for receive and transmit. Runs about 10 watts out. Uses 12VDC. Reported to have had CIA clandestine use. Also may have been a backup radio in US Embassies. A turns counter for the antenna matching variable inductor normally is mounted behind the cutout above the meter. It is missing on this unit.
N3NNG's display Left: WWII US Navy GP-7 aircraft transmitter NOS with accessories. Spare tuning unit in storage container and transmitter dust cover. Center: GP-7 transmitter with radio operator's & pilot's remote controls. Low freq. Antenna tuning unit on right. Right: WWII US Navy MO-1 transceiver. 3.0 to 8.0 mc. 25 watts AM xtal control. Used in small surface craft, and Navy and Marine Corps vehicles
|Left to Right: WWII US Navy (Marine Corps) TBY battery charger Type CLG-20145. Charges up to 3 TBY batteries at the same time. Connectors with cables are stored in lid on left. NOS WWII TBY-8 radio set in original storage/transportation chest. Includes original CLG-20206 AC and CLG-20144 vibrator power supplies. Used by the Marine Corps. - N3NNG|
|Top: WII US Navy RBD shipboard
receiver. 1.5 to 12 mc, a variant of thr RAX aircraft receivers.
Bottom: Complete set of RAX-1 aircraft receivers including shockmounts and dynamotors. - N3NNG
| WA2EJT's BC-973-C
direction finder p/o SCR-503. Center unit is a common ARC-5
transmitter. TX at the right is a rare low-frequency set, either
T-15 or T-16/ARC-5. (Joe help!)
|Breck, K4CHE a.k.a. Zorro, at
the controls of his fully operational Wireless Set No. 19.
|W3PWW getting Wireless Set 19