This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is powered by 12 V and the power gain is 8.9 dB.
This circuit for high-impedance magnetic headphones was suggested as an experimental amplifier for hearing...
This circuit is suitable for use with 1400 kHz range FI receivers. Changes can be made to other IF...
When the control level is increased from 0 to 1 (LO to HI), this circuit is activated, which...