This circuit is used to match a high impedance input source with a low impedance output device such as an audio amplifier. The circuit sink only 4 mA from a 6 to 12 V supply. The FET can be replaced by a BF245 or other equivalent.
This circuit is used to match a high impedance input source with a low impedance output device such as an audio amplifier. The circuit sink only 4 mA from a 6 to 12 V supply. The FET can be replaced by a BF245 or other equivalent.
