AIR FORCE TRANSMITTERS

LAST MODIFIED : December 5th, 1999

A 80/1

Transmitter. Board set
Year : 1930
Frequency Range : 35 to 85 m anf 210 to 960 m in two bands
Facilities : CW, MCW, RT
Transmitter circuit (valves):MOPA (RS61 + MT31); Modul. MT31 or RS31G
Input power: 80 W
Aerials : Wire
Power supply : By propelled rotary generator suppling 12, 320 and 1100 Vdc

A 80/bis

Transmitter. Board set
Year : 1932
Frequency Range : 210 to 960 m in two bands
Facilities : CW, MCW, RT
Transmitter circuit (valves):MOPA (RS61 + MT31); Modul. MT31 or RS31G
Input power: 80 W
Aerials : Wire
Power supply : By propelled rotary generator suppling 12, 320 and 1100 Vdc

A 200/1

Transmitter. Board set
Year : 1935
Frequency Range : 35 to 85 m anf 210 to 960 m in two bands
Facilities : CW, MCW, RT
Transmitter circuit (valves):MOPA (RS61 + MT31); Modul. MT31 or RS31G
Input power: 200 W
Aerials : Wire
Power supply : By propelled rotary generator suppling 12, 320 and 1300 Vdc

A 300 (Prima serie)

Transmitter. Ground. SAFAR manufacturer. Built in 3 main blocks. Central block containing the tubes, side blocks MO and Antenna circuits.
Year : 1935
Frequency Range : 277 - 416 kHz, 857 - 1500 kHz, 3250 - 6666 kHz
Facilities : CW, MCW, RT
Transmitter circuit (valves): MOPA+Modulator (2x RES664D, 2x PC1.5/100+ E406) Include e special circuit that in RT supresses the carrier when no spech.
Input power : 300 W
Aerials : Long wire with adjustable lenght, 12 m vertical
Power supply : Rotary generator engine driven.

A 300 (Seconda serie)

Transmitter. Ground. Similar to the previous set. Difference in in the Short wave section (right block) divided in two bands
Year : 1937

A 310

Transmitter. Ground fixed, field or vehicular. Built in 3 panels. Side panels are sliding and each panel works in a different band. 4 tuning panels possibility. Part of the station RT 310.
Year : 1938
Frequency Range Transmitter : 240 - 441 kHz and 1.1 - 8.570 MHz in 4 bands. Each band use a panel.
Facilities : CW, MCW. RT is possible using an external modulator.
Transmitter circuit (Valves): MO (n.2 PE05/15), PA (N. 2 PC1,5/100) N. 2 2A3 carrier suppressor.
RF Output : RT = 80 W, CW = 250 W
Aerials : Transmitter = double wire T antenna for LW, 20 m slope for MW and an adjustable slope from 7 to 14 m for SW.
Power supply : Tramsmitter = 220 Vac by mains or by engine driven generator suppling 220 Vac.

A 320

Transmitter. Board set. Built to be used for Atlantic cruises from I.Balbo
Year : 1938
Frequency Range : 583 - 1200 m , 35 - 70 m.
Facilities : CW, MCW, RT
Transmitter circuit : MOPA+Modulator
Output power : 100 W
Aerials : Pending long wire with adjustable lenght.
Power supply : Multivoltage rotary generator.

A 320/ter

Transmitter. Board set. Built to replace the A 350/2. Very compact, weight 22 Kg.
Frequency Range : 580 - 960 m and 35 - 70 m.
Facilities : CW
Transmitter circuit : MOPA
Output power : 110 W
Aerials : Pending long wire with adjustable lenght.
Power supply : Multivoltage rotary generator.

A 350/1

Transmitter. Board and ground set. SAFAR manufacturer. Part of the Radio station A 350/1
Year : 1933
Frequency Range : 205 to 900 m in two bands and 35 to 85 m.
Facilities : CW, MCW, RT
Transmitter circuit (valves): MO (RS69), PA (MT31), Mod. (MT31)
RF Output : RT = 80 W, CW = 250 W
Aerials : Dipole or pending wire. Inverted L (ground)
Power supply : Rotary generator RA300 suppling all voltages

A 350/2

Transmitter. Board set. Modification of the previous A350/1 to work only in CW and with filament tube 24 Vdc. Manufacturer Marconi, Allocchio Bacchini. Mechanically different works in MW and SW using different tuning unit.
Year : 1936
Frequency Range : 205 to 900 m in two bands and 35 to 85 m.
Facilities : CW
Transmitter circuit (valves): MO (RS69), PA (MT31)
Input Power : 350 W
Aerials : Dipole or pending wire.
Power supply : 24 V driving a rotary generator suppling all MV and HT voltages.

A 350/2M

Transmitter. Board set. Improvement of the previous A350/2 to work in all modes. Manufacturer Allocchio Bacchini.
Year : 1942
Frequency Range : 205 to 900 m in two bands and 35 to 85 m.
Facilities : CW, MCW, RT
Transmitter circuit : MO PA plus Modulator
Input Power : 350 W
Aerials : Dipole or pending wire.
Power supply : 24 V driving a rotary generator suppling all MV and HT voltages.

AT 800

Transmitter. Ground fixed. Used mainly for airfield service with the possibility of vehicular installation. As usual for Air force set also this built in 3 panels where sides, containing the tuning circuits (one panel per band) and the central containing the tubes. Part of many unit.
Year : 1938
Frequency Range Transmitter : 150 - 1500 kHz and 2.4 - 13.043 MHz.
Facilities : CW, MCW. RT.
Transmitter circuit (Valves): MO (RS291), BU (RS291), PA (RS 292), MOD. (RENS D, MC1/50, TC2/50), MC1/50 carrier suppressor.
RF Output : RT = 175 W, CW = 800 W
Aerials : Transmitter = double wire T antenna for LW, and an adjustable slope for SW.
Power supply : Vertical rotary generator = Supply possibility by 220 Vac by mains, 12 V storage battery or by engine driven generator

AT 800 Modificato

Transmitter. Also known like "AT 800 Seconda Serie", same as previous but using like PA two Philips tubes type PC2/500 and minor electrical variations

AT 800 Radiofaro

Transmitter omnidirectional beacon. Operative frequency : 700-1500 kHz using 2 panels only. cammes mechanism to send automatically the call sign.

AT 1000

Transmitter. High Power. Ground. Fixed or vehicular. Improvement of the AT 800. Built in the usual 3 parts. Left and right containing MO and PA tuning parts, middle the tubes and related circuitry. Used for long distances communications.

Year : 1940
Frequency Range : 1,66 - 6,00 MHz (right panel) and 4,28 - 15,0 MHz (Left panel).
Facilities : CW, MCW. RT.
Transmitter circuit (Valves): MO (RS287 or RL12P35), BU (RS391 or 4C100T), PA (RS 384), MOD. (77, MC1/50, TC2/250), MC1/50 carrier blocking.
RF Output : 800 - 1300 W
Aerials : Transmitter = double wire T antenna for LW, and an adjustable dipole for SW.
Power supply : By separate PSU working from 160 to 220 Vac and suppling all the necessari voltages (LT, MT, HT)

IF 602

Transmitter.

RA 100

Transmitter. Board set. LW, MW, SW with the possibility of frequency preset. 3 panels. Manufacturer Allocchio Bacchini Year : 1942
Frequency Range : 309 - 604 kHz, 698 - 1440 kHz, 3.702 - 15.380 MHz.
Facilities : CW, MCW.
Transmitter circuit (Valves): MO (RS287), PA (RS391).
RF Output : 80 - 100 W
Aerials : Dipole with ATU.
Power supply : 24 Vdc PSU type RAC100/4

tB 5

Transmitter. Board set. Crystal controlled. Single frame containing RF stages, Modulator, Dynamotor PSU. Part of the board radio station B 5. Manufacturer Allocchio Bacchini

Year : 1942
Frequency Range : 3000 - 5000 kHz. Single channel. Ground presetted.
Facilities : RT
Transmitter circuit (valves): XO (E1R), PA (6T), Mod. (EL2 + 6T)
RF Output : 3-5 W
Aerials : Wire
Power supply : 24 Vdc Board storage battery

tB 30

Transmitter. Board set. Used on fighter or like auxiliary set on multienigines aircraft. Part of the station B 30. Built in many versions (T, mT, Tbis) see radio station B 30

Year : 1942
Frequency Range : 3000 - 5000 kHz. Single channel. Ground presetted.
Facilities : RT
Transmitter circuit (valves): MO (EL2), PA (PE 06/40)
RF Output : 20-30 W
Aerials : Wire
Power supply : By PSU type alB 30

tS 150

Transmitter. Part of the station S 150. Built in 3 panels = Right for SW, Middle for MW, Left for MW.

Year : 1941
Frequency Range : 300-520 kHz, 2000-2500 kHz, 4.3-8.6 Mhz
Facilities : CW, MCW and RT with external modulator type mS 150
Transmitter circuit (valves): MO (PE 1/80), PA (2x PE 1/80)
RF Output : 100-140 W
Aerials : Wire or dipole with ATU
Power supply : By rotary PSU

SIM6020

VHF transmitter. Manufacturer IMCARADIO. Part of the station IMCA 20W
Year : 1940
Frequency Range : 59 - 64.5 MHz. Single channel Xtal controlled
Facilities : AM - Voice
Transmitter circuit (Valves) : MO (6L6), Dub.(6V6), PA(807), Micro amp. (6N7), Mod.(807)
RF Output : 20 W
Aerial : Vertical dipole
Power supply : By mains