to remember the MACKAY receiver model 3010 C installed on many anglosaxon ships..
Alternative name: ITT Mackay Marine
Category: Professional receiver
Principle: Supereterodyne double / triple conversion; ZF/IF 455 kHz
Bands: MF HF
Power supply: AC / 115 Volt
Model: 3010-C – Mackay Radio & Telegraph
Materials: Metal cabinet
Dimension (LxHxD): 19 x 10.5 x 16 inch / 483 x 267 x 406 mm
Notes: Coverage (10 kHz)70 kHz to 30 MHz in 15 bands, works in AM, CW, MCW, SSB and FSK, S-meter, BFO, triple conversion ~38 MHz, 5,94 MHz and 455 kHz, 90 inch film scale, differences to the type B are just added capacitors to improve the frequency stability.