Indicated for discriminators adjustment in FM and VHF receivers, this circuit was found in a 90s 73 magazine for radio amateurs. The operational amplifier can be a general-purpose type.
The circuit presented requires a simple 12 V supply and was suggested by Motorola in its 1990...
Found in a 90s Linear Technology documentation, this circuit is intended for powering cold cathode...
This filter is current driven and has the formulas given by the two diagram options. The circuit...