• Country
• Great Britain (UK)

• Manufacturer / Brand
• Panda Radio Co.; Rochdale, England

• Year
• 1951

• Category
• Commercial Transmitter (TX not Transceiver)

• Radiomuseum.org ID
• 268350

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 15

• Valves / Tubes
• EF50 6V6 6V6 6V6 6V6 6L6 807 807 807 807 6LS7 6SN7 5U4G 866 866

• Main principle
• Transmitter

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Line (AC, UC or DC not known) / 100-250 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: PR-120-V - Panda Radio Co.; Rochdale,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 20 x 17.5 x 13 inch / 508 x 445 x 330 mm

• Notes

• 150-W amateur transmitter.

  Has an accurately calibrated and voltage stabilized VFO with buffer amplifiers and frequency multipliers for switch selection of any amateur band from 3.5 to 28 MHz.

  Provision is made for "break-in" operation on telegraphy and for netting, and it is TVI-proof, i.e., all harmonics in the TV band have been suppressed.

  DC power input to PA is 150W in CW mode (the maximum legal limit in the UK). On AM R/T it is 120W max.

  The transmitter covers the HF amateur bands that were available at the time: 3.5, 7, 14, 21 and 28Mc/s bands. The electrical layout is:

  RF Unit: VFO (EF50), driver/amplifier/frequency multipliers (4 x 6V6), power amplifier (2 x 807).

  Modulator unit: high gain speech amplifier (6SL7), modulator driver amplifier (6SN7), and class AB2 modulator (2 x 807).

  Power unit: low voltage rectifier (5U4G) produces 350V at 250mA, high voltage rectifier (2 x 866) produces 750V at 200mA (on CW) or 650V at 400mA (on AM R/T). 

• Net weight (2.2 lb = 1 kg)
• 150 lb (150 lb 0 oz) / 68.1 kg

• Price in first year of sale
• 125.00 £

• Source of data
• - - Manufacturers Literature

• Mentioned in
• Advert in RSGB Bulletin, Dec. 1951

• Literature/Schematics (1)
• Wireless World (The), London (WW, 79) (Vol. 59, Jan. 1953, p. 6.)

• Literature/Schematics (2)
• - - Manufacturers Literature (PR-120-V Table Top 150 Watt Transmitter Instructions)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 3 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Panda Radio Co.; Rochdale, England