14-08-2017, 06:42 PM
I worked for John VK5MG in 1976 and installed Crammond's next generation, 4x 6CM5 valves
in the final. Transistorised 100W SSB marine set. 24V DC power, DC/DC with 4x 2N3055 transistors.
These frequencies are definitely Marine.
Yours is very likely an AM. The transition to SSB for Marine took place in about 1972.
2112, 2182, 2201, 2524, 4125, 4136.3, 6125, 6204 all Marine Coastal service and fishing frequencies.
The Crammond was considerably cheaper than the Racal, fully solid state in 1974.
in the final. Transistorised 100W SSB marine set. 24V DC power, DC/DC with 4x 2N3055 transistors.
These frequencies are definitely Marine.
Yours is very likely an AM. The transition to SSB for Marine took place in about 1972.
2112, 2182, 2201, 2524, 4125, 4136.3, 6125, 6204 all Marine Coastal service and fishing frequencies.
The Crammond was considerably cheaper than the Racal, fully solid state in 1974.