| GENERAL | 
| Type: | Amateur HF transmitter | 
| Frequency range: | 10-80 m | 
| Tuning steps: | Analog / continuous | 
| Frequency stability: | ? ppm | 
| Mode: | SSB / CW / (AM) | 
| Channels / memory management: | None | 
| Power supply: | Mains (Internal PSU) | 
| Current drain / power consumption: | Max ? W | 
| Antenna impedance / connector: | ? ohm / ? | 
| Dimensions (W*H*D): | ? mm (?") | 
| Weight: | ? Kg (? lb) | 
| Other features: | VOX. | 
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| TRANSMITTER SECTION | 
| RF output power: | 
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 | Max Pwr | 
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 | SSB (PEP): | 100 W |  | CW: | 80 W |  | 
| Modulation system: |  | 
| Max FM deviation (Factory set): | No FM | 
| Spurious emissions: | Better than -? dB | 
| Microphone impedance / connector: | Hi-Z / ?-pin | 
| Microphone input level: | ? mV | 
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| MISCELLANEOUS | 
| Manufactured: | England, 1964-1965 (Discontinued) | 
| Additional info: | With the Mark IV, the front face color was changed to blue | 
| Related documents: | RF finals: Two 6146 | 
| Modifications and fixes: |  | 
| Reviews: |  | 
| Options / Accessories: |  |