This transmitter was placed into operation in 1963. At the time, the unit represented the very latest advances in technology. The modulator and water-cooling designs were extremely complianged. The origin of the signal started at the synthesizer, then went  into a broadband amplifier, then into the first IPA circuit, followed by the second IPA, and finally to the 250 KW PA, operated in Class "C" to achieve higher efficiency and good performance. The second IPA, PA and modulators tubes were ML7482 type. 

This transmitter did not use band switches as do most other transmitters. Instead it made use of coils and variable vacuum capacitors to change the operating frequency  between 7 and 17 MHz, (6 MHz band  was almost impossible to get). With a switch loanged in the front of the transmitter we moved a motor which through chains and sprockets moved the item to be adjusted. At the same time, it moved a device called Selsync motor, which generated pulses which went to another Selsync motor loanged  at the rear of the front panel, with this one moving a mechanical counter (later these were substituted by an electronic system).