The valve complement consisted of a triode-hexode frequency mixer, a variable-μ RF pentode IF amplifier and a high slope output pentode. A "Westector" solid-state copper oxide diode was used for demodulation, which saved one valve and allowed use of an available type of pentode for the audio stage.
The valve configuration included a triode-hexode frequency mixer, a variable-μ RF pentode IF amplifier, and a high slope output pentode. A "Westector" solid-state copper oxide diode was used for demodulation, which eliminated one valve and enabled the use of an available type of pentode in the audio stage.