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Frequency range:  2000 to 3000 meter marine band. (150 to 100 KHz respective;y)
Power level: 1.5 kw
Modes: CW only
Tubes used: : MT4 triode , 2 x MR1 rectifiers
Mains input : 500 Hz  provided by an alternator.

Made by : Marconi UK

MC1 in colour

MC1 transmitter with safety screens detached.

Simplified schematic of the MC1 CW ttansmitter

		Does anyone have an image of the MR-1 rectifier? Contact: jerry.proc@sympatico.ca
Type: MT-4 transmitting triode Identical to: CV1610  Vintage: 1919?  FilamentL 12.5 Volts @ 6.3 amps Plate dissipation: 200 watts Maximum anode voltage: 10,000 VDC (Image courtesy Radiomuseum.org)		Type: MR-1 half wave rectifier. Filament voltage: 5 volts @ 10 amps Plate dissipation: ? Maximum anode voltage: ? Maker: OSRAM (Image courtesy Radiomuseum.org)

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Contributors and Credits:

1) Lewis Bodkin  <05bodkin555(at)gmail.com>
2) Handbook of Technical instruction.
3) https://www.radiomuseum.org/r/marconi_wi_15_kw_ship_set_mc1mc.html
4) MT-4 tube  https://www.radiomuseum.org/tubes/tube_mt4.html
5) MR-1 tube  https://www.radiomuseum.org/tubes/tube_mr1.html

Feb 12/19