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Home :: Our Museum Items

Our Museum Items

The Items in this section are provided for study and reference as a museum display of vintage equipment!

Products

Clansman RT-352 / PRC-352 20 Watt VHF Man-Pack Transceiver
This is the Clansman RT-352 / VRC-352 Back-Pack Radio that was mainly used by the Royal Marines. The radio is basically a Clansman RT-351 / PRC-351 with the addition of a 20 Watt Amplifier.

The PRC-352 is a 20 Watt portable VHF (FM) Radio using a clip on external RF amplifier, made by RACAL BCC Ltd. in England. The PRC-352 has been designed to provide command communications at battalion and company level for dismounted troops. It was also used in vehicles by mounted troops.

Frequency Range 30 to 76.000 MHz in 25 Khz steps giving a total of 1841 programmable channels. The desired frequency is set by four knobs on the side of the radio which can be operated even while the operator is wearing Arctic mittens, or in the dark by counting clicks from the end-stops.

Intermediate Freq 11.525 MHz, Frequency Stability 5 ppm per year. Voice F3E Narrow with +/- 5 Khz deviation, Telegraph F2, 75 Baud.

A Whisper mode is provided for use when quiet conditions are essential. In this mode the receiver's audio output volume is reduced and the microphone sensitivity is increased. A Loud mode is also provided for operation in noisy environments as well as a Noise-On switch position which allows the radio to operate with the squelch in the off mode.

Local Squelch facility by either 150 Hz tone modulation of radiated signal, or by 160 Hz superimposed on receive signal. Auto-Rebroadcast operates on 150Hz Modulated receive signal.

Output power of the radio is 20 Watts into a 50 Ohm load using the RF amplifier. The amplifier can not be used on high power transmit using the radios normal whip antenna and instead a Ground-Spike Antenna is used. The amplifier can only be used on high power as a fixed radio station or in a vehicle using the vehicles antenna system. For mobile man-pack operations the battle antenna is fitted and the radio is operated on low power bypassing the amplifier as a PRC-351.

If more than one radio set is used in close proximately a Selective Unit RF 4 Watt SURF should be installed on top of the PRC-352 radio and used on low power. The SURF prevents one radio interfering with the other radio. The SURF is then tuned to give optimum performance and achieve maximum range with the radio set.

The radio is powered by a standard Clansman 24 Volt battery pack. The battery clips on to the bottom of the radio. The radio can also be powered / recharged with a Hand Generator which clips on between the radio and the battery. It can also be powered externally from Vehicle power supply or a 24 Volt DC Power Supply such as the UK-AC1-2870 14/28 Volt AC Adaptor, connected to the radio with a modified battery extension lead.
Clansman Flexible Antenna for PRC-350, PRC-351, PRC-352
Clansman Flexible Antenna for PRC-350, PRC-351, PRC-352 Man-Pack radios. Total length is 26 Cm (10.23 inch). The antenna plugs in to the antenna socket of the radio. Supplied in very good condition. NSN: 5985-99-661-6417.
BG-150 Accessories Bag For BC-1000 Radio
The BG-150 canvas accessories bag for the BC-1000 radio. It consists of three compartments, the first for the storage of AN-130 antenna, the second for storage of AN-131 antenna and the third for storage of TS-15 hand set and HS-30 headset. These bags are in used condition and may have some small holes or cuts.
Clansman VHF Ground Mounted Monopole
The heavy duty Clansman Ground Mounted Monopole is a wide band vertical polarised Omni-directional antenna designed to be free standing. It does not require a antenna tuners or other adjustments for frequency and is suitable for use with ClansmanVRC-353,PRC-351,PRC-352 or any other VHF radio set with a 50 Ohm Co-axial outlet.

The antenna is low profile antenna and can easily be concealed when mounted on the ground. Inconspicuous and easily camouflaged. It was used in forward areas, where for tactical reasons a an elevated antenna is unsuitable. It can quickly be erected in any terrain. It is self standing, requiring no stays or pickets driven into the ground. It folds into a small bulk for transport.

The Antenna is in the form of a skeleton inverted pyramid with the total height of about 1.2 M mounted on an optimum-size ground plane. The elements forming the side of the pyramid are made of drawn triangular cross section aluminium. Hinges enable the structure to be folded. The tops of the elements and the centre post are joined together with insulated copper / terylene braid.

The ground plane is constructed of covered stainless steel mesh and is joined to the base of the pyramid by a moulded insulator. Earthing spikes are provided, which can be driven into the ground to prevent the antenna from moving in high winds. The Antenna is supplied in good condition, complete with accessories and canvas carry bag.

Specifications:
Frequency Range: 30-76 MHz
Power Rating: 70 Watts matched with any 50 Ohm Radio
Gain: 30 MHz -4.5 dB, 76 MHz -1.5 dB
VSWR: 1.5:1
Size: Unfolded 1.2 M (48), Folded 1.58 M (62)
Weight: 13 Kg including bag and accessories
Personal Locator Beacon type ARI23237/1
Made by PYE Dynamics Limited, in England the Personal Locator Beacon type ARI23237/1 was mainly used by military pilots.

A personal locator beacon is a device that when activated automatically transmits a signal on a internationally monitored frequency. This emergency frequency is constantly monitored and should a beacon be heard, help is sent out to locate and rescue the person in trouble. That said the authorities would be extremely annoyed if the unit is activated by unauthorised people and for no good reason.

The PYE ARI23237/1 provides distress beacon and two way voice communications facilities on the 243 & 282.80 MHz military distress bands.

A rotary switch on top of the unit selects power on/off, Distress & Auxiliary Channels. The Auxiliary channel is on 282.80 MHz and is Speech only. The distress channel is on 243 MHZ and is the automatic Beacon or Speech. A volume control and a push button self test facility are also provided. The unit is powered by a 12 Volt battery not available and has a transmitting range of 3Km.

The unit is supplied in good looking condition with-out any accessories. The pull cords, battery, antenna or a manual are not available. Dimensions: 80mm x 90mm x 35mm, Weight: 0.5 Kg. NSN: 5821-99-630-9247.
Clansman PRC-320 Counterpoise Antenna
The Counterpoise Antenna provides an artificial earth for all antennas when used on ground of poor conductivity, such as desert of frozen snow and ice, and should always be used with the ground wave vertical or end feed antennas. In use the wires are spread radially around the radios such as a Clansman PRC-320 and the short lead from the main spool connected to the earth terminal of the radio. The counterpoise Antenna should always be used if doubtful about the ground conditions. Using this counterpoise antenna often improves the radios performance. Supplied in good condition.
RUP-15 Yugoslav Peoples Army HF/SSB radio station
The RUP-15 is ex-Yugoslav Peoples Army HF/SSB radio station designed by RIZ Zagreb factory (ex Yugoslavia) for combat use.

The radio operates in the 2 to 12 MHz band with 100Hz spacing and provides SSB (LSB), AM and CW facilities. Frequency Selection is by decade knobs, which control a synthesizer.

A transmitter output power of 15 W PEP working into a whip antenna gives the RUP-15 a ground-wave communications range in excess of 20 km by day under normal conditions.

The RUP-15 is suitable for use as a ground station, working into static ground- or sky-wave antennas. Working into a dipole or end-fed antenna, sky-wave communications at ranges from 50 to 1500 km or greater can be achieved. This range performance is due in part to the high-grade receiver and high efficiency manual antenna-tuning unit, which is integral with the transmitter/receiver unit. The radio is carried on the operator's back. It is powered by rechargeable 12V Ag/Zn batteries of 20Ah capacity.

The equipment and accessories are supplied in very good condition, tested and operational. Please choose from accessories options below.
RU-2/1 Yugoslav Peoples Army VHF Radio Station
The RU-2/1 is a ex-Yugoslav Peoples Army VHF radio starion. The radio is a low power portable VHF (FM) Radio, made by RUDI CAJAVEC, from Banja Luka (Ex Yugoslavia). The RU-2/1 has been designed to provide command communications at battalion and company level. It was also used in vehicles and by mounted troops. The RU2/1 replaced the older RUP-12 ex-Yugoslav peoples army VHF radio.

Frequency Range 30 to 69.95 MHz in 50 Khz steps. The desired frequency is set by 3 knobs on the front plate of the radio.

The radio is powered by a standard JNA 12V/6aH battery pack. It can also be powered externally from 12V Vehicle power supply.

The RU-2/1 and accessories are supplied in very good condition, tested and operational. Please choose from accessories options below.
Collins PRC-515 / RU-20 Yugoslav Peoples Army HF/SSB Radio Station
RU-20 is ex-Yugoslav Peoples Army HF/SSB radio station manufactured by RIZ Zagreb factory (ex Yugoslavia) under licence from Rockwell Collins of Canada (original Collins model designation is PRC-515) for combat use.

The equipment operates in the 2 to 30 MHz band with 100Hz spacing. Selection is by decade push down switches that control a synthesizer. Modes of operation SSB (LSB, USB), AM and CW.

A transmitter output power of 20 W PEP working into a whip antenna gives the RU-20 a ground-wave communications range in excess of 20 km by day under normal conditions.

The RU-20 is suitable for use as a ground station, working into static ground- or sky-wave antennas. Working into a dipole or end-fed antenna, sky-wave communications at ranges from 50 to 2000 km or greater can be achieved. This range performance is due in part to the high-grade receiver and high efficiency built in automatic antenna-tuning unit, which is integral with the transmitter/receiver unit. The radio is carried on the operator's back. It is powered by rechargeable 25.2V/1.8Ah NiCd batteries.

The equipment and accessories are supplied in very good condition, tested and operational. Please choose from accessories options below.
M-63 Yugoslav Peoples Army Field Telephone
The M-63 is the Ex-Yugoslav Peoples Army Field telephone.
Range using D-10 two wire cable between two M-63 telephones up to 30km.
Range between radio and M-63 field telephone in remote radio operating role using D-10 two wire cable up to 10km. The M-63 Field Telephone Rings the other phone using the hand crank and operates with two D batteries for power.
British Army Morse Key Trainer Model BZ-1000
This is a nice practice Morse key to learn Morse code with. Totally self contained and easy to move around.

The trainer isMade by Morse Equipment Ltd. in England, Model No. BZ-1000. These Morse Trainer keys were used by the army in the training of new radio operators in the art of Morse Code. The unit uses one standard 9 Volt PP3 Battery and has a built in sounder, that produces a pleasant sound.

The high grade Morse key is manufactured by Hi-Mound in Tokyo, Japan. Model No. HM-HK708 and can be connected to external equipment and used as a normal Morse key.

The key and the sounder unit is mounted on nice bevelled wooden base with felt backing. Overall dimensions 17*17*6 cm. Supplied in good condition, tested and operational.
Clansman VRC-321 HF 25 Watt RF Antenna Tunning Unit TURF / ATU
The Clansman 25 Watt RF Antenna Tuner TURF, also known as ATU for use with the Clansman VRC-321 HF vehicle transceiver. It can also be used with other HF radio transmitters with output powers of up to 25 Watts.

The ATU is used to match the antennas length to the transmitting frequency for optimum performance and achieve maximum range with the radio set.

NSN: 5820-99-114-3386. Supplied in good condition.
Clansman VRC-321 25 Watt HF Selector Unit SURF
The Clansman 25 Watt HF Selector Unit SURF for use with the Clansman VRC-321 HF vehicle transceiver. It can also be used with other HF radio transmitters with output powers of up to 25 Watts.

The SURF is used when more than one radio is used in close proximately and prevents one radio interfering with the other radio. The SURF is then tuned to give optimum performance and achieve maximum range with the radio set.

NSN: 5820-99-620-8079. Supplied in good condition.
Clansman SURF / TURF Mount for VRC-321
This Clansman mounting tray allows the SURF or TURF units to be mounted on top of the VRC-321 radio station. Supplied in good condition. NSN: 5820-99-645-0099.
Clansman UK VRC-322 250 Watt HF Vehicle Radio Station
The British Army Clansman UK VRC-322 250 Watt, high power HF radio station. This station is essentially a VRC-321 with a additional 250 Watt RF Amplifier and a suitable high power Antenna Tuning Unit TURF.

The VRC-322 radio system has been designed and developed by MEL Communications Ltd in Crawley, England for mobile or static use. It is primarily designed as an High Power HF vehicle station for mobile ground-wave operation, but can also be used as a ground station or for sky-wave operation over long distances.

Digital frequency selection in 100 Hz steps over the 1.5 to 30 MHz frequency range. All frequencies are synthesized from one reference oscillator. The receiver / transmitter frequency is selected by decade switches. Power output, High Power 300 Watt PEP (SSB), 250 Watt CW, Low Power 40 Watt PEP (SSB), 25 Watt CW. Beta light illumination is provided to enable the meter and Setting Switches to be read in the dark.
Clansman HF 250 Watt RF Power Amplifier
The British Army Clansman HF 250 Watt RF Power Amplifier. These amplifiers were designed to upgrade the standard VRC-321 to a VRC-322. The amplifier boosts the output power of the Clansman VRC-321 vehicle radio station to 250 Watts. It can also be used with other HF radios having an output power of 20-40 Watts.

The RF amplifier has been designed and developed by MEL Communications Ltd in Crawley, England for mobile or static use. It is primarily designed as an High Power HF vehicle station for mobile ground-wave operation, but can also be used as a ground station or for sky-wave operation over long distances.

Frequency range 1.5 to 30 MHz. Power output, High Power 300 Watt PEP (SSB), 250 Watt CW, Low Power 40 Watt PEP (SSB), 25 Watt CW. Beta light illumination is provided to enable the meter and Setting Switches to be read in the dark.

The equipment operates from 28 VDC power supply which can have a wide variation in nominal voltage
Clansman HF 250 Watt Antenna Tuner Unit TURF
This is the Clansman 250 Watt HF Antenna Tuner TURF for use with the Clansman 250 Watt RF Power Amplifier. The TURF and the 250 Watt RF Amplifiers were designed to upgrade the standard VRC-321 to a VRC-322. The TURF is used to match the antennas length to the transmitting frequency of the radio for optimum performance and achieve maximum range. It can also be used with other HF radios having an output power of up to 250 Watts.

The TURF has been designed and developed by MEL Communications Ltd in Crawley, England for mobile or static use. It is primarily designed as an High Power HF vehicle station for mobile ground-wave operation, but can also be used as a ground station or for sky-wave operation over long distances.

Frequency range 1.5 to 30 MHz. Power handling up to 300 Watt PEP (SSB) and 250 Watt CW. Beta light illumination is provided to enable the meter and Setting Switches to be read in the dark.

The controls and front-panel has been designed to permit straightforward unambiguous operation without the need for extensive operator training. Protection circuits prevent damage from various hazards including local high power transmissions.

The TURF is available in good working condition. 250 Watt RF Amplifier and other accessories such as Harness Boxes, Hand-Set, Head-Sets as well as Vehicle Mounting Trays for the radio and TURF are available separately on this website.Click here for a list of Accessories.
Clansman Flexible Antenna for PRC-349
Clansman Flexible Antenna for PRC-349 Man-Pack radios. Total length is 26 Cm (10.23 inch). The antenna screws in to the antenna socket of the radio. NSN: 5985-99-732-6041.
Clansman Intercom Kit with Active Noise Reduction ANR
We have been asked many times for a easy Vehicle Intercom set-up. Here we have put together a Clansman intercom kit for up to 4 stations. This set-up uses the Gold Top ANR Active Noise Reduction version of the Clansman harness boxes. The Active Noise Reduction reduces the background noise that maybe present while driving for better voice communication.

This intercom kit can be used stand alone with-out a radio in any vehicle having a battery voltage of 24-28 Volt DC. It can also be used with up to two Clansman radios connected to the intercom.

The main unit in this kit is the Interconnecting Box 3 radio IB3. The IB3 provides audio amplification and DC power for the rest of the boxes. The IB3 can have up to 3 radios connected if used with Crew Boxes 3 Set CB3 but in this setup we are using CB2 boxes which provide connection up to 2 Clansman radios. If you require CB3 boxes with this kit then please let us know.

The IB3 requires 24-28 Volt DC to operate. This is taken from the vehicles power source. The IB3 is fuse protected against short circuits. If radios are connected they can only to be operated in pairs, even if CB3 are used. The IB3 can also allow a remote user to be connected into the harness using a remote handset to communicate with the crew over the intercom but not to control any installed radio.

The IB3 is then daisy chained with 12 pin harness cables to the Crew Boxes CB2, see diagram below.

The CB2 boxes are the main unit by which the personnel can connect into the audio system. Each CB2 allows up to two headsets with Pressel Switches and / or handsets to be connected to the intercom system. The CB2 also allows the operator to select and operate either radio A or B and to monitor the other radio.

We have put together the ANR versions of this intercom kit together for two, three and four operators. Each operator gets a CB2 box with a harness cable and a ANR Headset with Pressel Switch. Please ask for other combinations of boxes and audio accessories.

Select from the list below for the number of operators required. All equipment is supplied in good working order.
Clansman Intercom Kit
We have been asked many times for a easy Vehicle Intercom set-up. Here we have put together a Clansman intercom kit for up to 4 stations.

This intercom kit can be used stand alone with-out a radio in any vehicle having a battery voltage of 24-28 Volt DC. It can also be used with up to two Clansman radios connected to the intercom.

The main unit in this kit is the Interconnecting Box 3 radio IB3. The IB3 provides audio amplification and DC power for the rest of the boxes. The IB3 can have up to 3 radios connected if used with Crew Boxes 3 Set CB3 but in this setup we are using CB2 boxes which provide connection up to 2 Clansman radios. If you require CB3 boxes with this kit then please let us know.

The IB3 requires 24-28 Volt DC to operate. This is taken from the vehicles power source. The IB3 is fuse protected against short circuits. If radios are connected they can only to be operated in pairs, even if CB3 are used. The IB3 can also allow a remote user to be connected into the harness using a remote handset to communicate with the crew over the intercom but not to control any installed radio.

The IB3 is then daisy chained with 12 pin harness cables to the Crew Boxes CB2, see diagram below.

The CB2 boxes are the main unit by which the personnel can connect into the audio system. Each CB2 allows up to two headsets with Pressel Switches and / or handsets to be connected to the intercom system. The CB2 also allows the operator to select and operate either radio A or B and to monitor the other radio.

We have put together this intercom kit together for two, three and four operators. Each operator gets a CB2 box with a harness cable and a Headset with Pressel Switch. Please ask for other combinations of boxes and audio accessories.

Select from the list below for the number of operators required. All equipment is supplied in good working order.
Clansman 24 Volt Battery Extension Cable
Extension Cable for Clansman 24 volt back-pack batteries. One end of the cable screws on top of the radios battery terminal and the other end screws on top of the battery's output terminal and allows the radio to be operated away from the battery.

This cable can also be modified by cutting the battery end off and connecting it to a stabilised 24 Volt DC power supply to operate the radio with-out a battery. Works with the following Clansman back-pack radios, PRC-320, PRC-344, PRC-351 and PRC-352. Supplied in very good condition.
Clansman Radio & Equipment Power Cable
This is the standard Clansman equipment DC power cable. The cable has a 2 pin bayonet fitting male and
DOM-410 Geiger Counter External Warning Light
This is the external Warning Light Unit for the DOM-410 Geiger Counter. It is a rectangular box 11 * 10 * 4 Cm with a power and a signal cable. The power cable connects to 6-28 Volt DC external power source, which could be provided from a vehicle battery. The other cable connects to the = connection of the DOM-410 Geiger Counter. There is a red light on one side of the warning box that flashes red to indicate radiation when the reading on the Geiger Counter scale lies between 0.3 and 0.7 of the scale, depending on the selected range. The unit is supplied in very good working condition, Grade 2.
Clansman PRC-320 Springy Whip Adapter
This Spring whip adapter plugs in to the top of the Clansman RT-320 / PRC-320 radio. The whip antenna rod then plugs in to the springy adapter. The springy whip can be set for vertical or horizontal antenna position when the radio is used as a back pack or when it is lying down an a flat surface.
Clansman 2.5 Meter Whip Antenna for PRC-319, PRC-320
Clansman 2.5 Meter Whip Antenna for PRC-319, PRC-320 Man-Pack radios. There are 8 sections to this antenna, when erected the total length is 250 Cm (98.5 inch). The antenna plugs in to the springy whip adapter of the PRC-320 and in to a special antenna holder of a PRC-319. Supplied in very good condition. NSN: 5820-99-661-6859.
Racal Clansman Light Weight Head Set and Microphone
Clansman Light weight Head Set and Microphone, a very comfortable and light weight headset to wear for extended period. They were designed primary for man-pack radio use. Has Clansman 7 pin Audio Plug.

Works with Clansman man-pack radios such as Clansman PRC-319, PRC-320, PRC-344, PRC-349, PRC-350, PRC-351, PRC-351M, PRC-352. Also works with-in the Clansman vehicle harness and Clansman vehicle mounted radios such as VRC-321, VRC-322, VRC-353.

The headset requires a Pressel Switch Box Assembly Push To Talk Switch which is not supplied but is available separately. NSN: 5965-99-661-6806.
CD-307 Cord For HS-30 Headset
The CD-307 cord is used with the HS-30 Headset, total length is about 170 cm and had a PL-55 plug to connect to radio and a JK-26 socket for HS-30 headset. Used with old war time radios such as BC-1306, BC-1000 and GRC-9 Radio sets. The CD-307 lead is supplied in very good condition.
DOM-410 Geiger Counter
The DOM-410 Geiger Counter was used by Dutch, French and Belgian Army in the late 1970's early 1980's. It is manufactured to high standard under license from SRAT. It is hermetically sealed unit and water tight.

The Beta Gamma probe has a removable Gamma shield, and is quite large, giving it a sensitivity of roughly 1 CPS background. In the CPS mode, 1000 CPS = 1 mr per hour. It has 3 Time constants Rapide, Lent, Mesure and 3 ranges 10 CPS, 100 CPS, 1000 CPS. In the Gamma only mode, the selector uses the internal gamma compensated tube, which may be removed from the side of the unit, and placed at the end of a 20 foot cable for remote monitoring. In the mr per hour mode it uses the internal gamma tube to measure 1-1000 millirads per hour.

When switched to the Rad/hr mode, the internal or remote mounted gamma only tube will measure from 1 rad per hour up to 1,000 rads per hour. Overall, it is a very sensitive Geiger counter that is robustly built and designed to take allot of abuse.

The counter has a total range of 15&#956
Clansman PRC-320 Selective Unit RF 12 Watt SURF
The Clansman Selective Unit Radio Frequency SURF 12 Watt for use with the Clansman PRC-320 HF radio set. The SURF is used when more than one radio is used in close proximately and prevents one radio interfering with the other radio. The SURF is then tuned to give optimum performance and achieve maximum range with the radio set. NSN: 5820-99-630-6174. Supplied in good condition.
DY-88 Power Supply CX-2031 Power Cable / Connector
This is the CX-2031 power input cable for the GRC-9 radio power supply, the DY-88. These cables are about 15-20 Cm long and would have normally gone into a junction box which was mounted somewhere near the radio before they were cut off. The other end of the Junction Box would have been connected to the vehicle battery.

The connector on these cables can easily be taken apart to install a new longer cable. The connectors are also suitable for the PP-112 / GRC as well as many other American radios made in the 1950
Tornister Empfanger B Torn Eb German WWII Receiver & Battery Box
The set consists of two units that are clip-able together above each other, the radio receiver and power supply box. The cabinets were meant to be carried on the back of a soldier, and the units are called Tornister' and Empfanger the German word for receiver, the letter 'b' in the designation simply indicates which receiver type.

The designator was shortened to Torn E b. The Torn E b was created around 1935/36. It was in general use with the German Signal Corps, but also at higher army staffs, police and traffic control authorities.

The radio is a tuneable radio frequency type set with four filament tubes that were run from a 2 volt battery at 0.2 A. The anode current came from a 90 V. dry battery at a consumption of about 12 Ma. The set covers the frequency band 100-6970 kHz in eight ranges.

This particular set is made later in the war and is dated 1943 and is in very nice untested condition.
PRC-77 Parts and Modules, NOS New Old Stock Original American Parts
Here we have a bunch of PRC-77 Modules and spare parts. These are all in NOS New Old Stock condition and are original American made parts made by Napco and Associated Industries & Equipment in USA. Once these parts are gone, that's it, there would be no more available.

Below is a list of the PRC-77 modules and the quantities available. These modules are for bulk purchase only, they are not available in single units. Please email for prices and details.
Genuine American Signal Corps BC-1000 WWII Radio
This is a genuine American Signal Corps BC-1000 Radio set that was used during WWII by the American troops fighting the Nazi Germany. This Radio is in very nice condition but does not include any accessories or the battery box, but it does include the battery tie-down straps. See pictures below.

40-48 MHz in forty one 200KHz steps, FM, IF 4.3 and 2.515 MHz, power output 300 mW RF, 200mW AF, transmission range up to 3 miles with the long antenna. The radio has a built-in 43 MHz crystal calibrator. Requires 4.5VDC 500 ma and 90VDC 25 ma.