The pentode tube used in this circuit has 1.5 V filament. The circuit is a voltage amplifier with the 1U5 tube.
This amplifier for analog video signals was found in documentation from the 90s. The 1.5Vpp signal...
This well-known signal generator configuration was obtained in a Popular Electronics from the...
The idea of this circuit found in a Radio Electronics from January 1966. The idea of the...