TCA VHF, Local Base station. FM1674 Series

The TCA FM1674 Series, Local Base Station was aimed predominantly at the Government market. It featured a 50 or 25 watt FM transmitter and, as the specifications for mobile radio had become more stringent in the late 1950’s  a receiver designed for 60 kHz RF channel spacing. 
It utilized a transistorized power supply and was available in the 33-49 MHz, 68-88 MHz and the 148-174 MHz frequency bands.  A variety of mechanical versions were available, local control units with either inbuilt or external power supplies, remote control versions and dust proof ruggedised versions in a die cast aluminium case. For the price sensitive commercial markets, a lower power 10-Watt output version was also released.

The base station could be ordered in four types;

Type 1: 25-watt, AC only

FM1674/25F.AC        Console Combing Assembly
FM1674/100               Receiver Unit
FM1674/325               Transmitter Unit
FM1674/79                 AC Power Unit

Type 2: 50-watt, AC only

FM1674/50F.AC        Console Combing Assembly
FM1674/100              Receiver Unit
FM1674/350              Transmitter Unit
FM1674/79                 AC Power Unit

Type 3: 25-watt, AC/DC

FM1674/25F               Console Combing Assembly
FM1674/100               Receiver Unit
FM1674/325               Transmitter Unit
FM1674/82                 Battery Charger
FM1674/500/12        DC/DC Converter Unit

       Type 4: 50-watt, AC/DC

       FM1674/50F               Console Combing Assembly
       FM1674/100               Receiver Unit
       FM1674/350               Transmitter Unit
       FM1674/82                 Battery Charger 
       FM1674/500/12            DC/DC Converter Unit

Only valves for the FM1674/100 Receiver are listed.

Here you find 5 models, 2 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from TCA, Telecommunications Co. of Australia Pty. Ltd.; Alberton SA