Dual Channel 6W Amplifier (T490E)

This 6-tube two-channel amplifier was found in an American documentation from 1947. The circuit is two-channel with a separation of bass and treble.

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Erase oscillator (CB7338E)
Suggested by Mullard in a1969 documentation, this circuit generates the erasure signal for tape...
Low noise preamplifier (CB8942E)
This low noise microphone preamplifier circuit was found in American documentation from the 90s....
Optical transmitter (CB20695E)
This transmitter for modulated radiation can be used as an optical data shield. The maximum...