Found in a 90s R-E Experimenters Handbook, this circuit amplifies signals from 100 Hz to 3 MHz. The circuit has a gain of approximately 30 dB. Bipolar transistors are general-purpose types.
This circuit generates sequenced pulses to control a stepper motor. The speed at which the pulses...
This battery-powered micropower supply was shown in Radio Electronics magazine in 1991. The...
This Philips circuit of the 70's makes use of components of the time. The DZD40 is an uncommon...