Found in a Philips documentation from the 90s, this circuit uses transistors from that time. Modern general-purpose transistors can be used.
The circuit shown is from a Texas Instruments optoelectronics manual. RE depends on the peak...
This circuit was found in the November 1993 issue of Electronics Now magazine. The two-stage...
Found in old documentation, this receiver for the mid-wave range uses transistors from the era. In...