With an 18 V input, this regulator was found in Philips documentation from the 60's. The transistors are from that time. The power transistor must have a heatsink.
August 2017 - Mouser Electronics is offering a new range of Ohmite ceramic heat sinks. The new...
This circuit has adjustments for both the time the signal is at high and low levels. Inverter or...
This flasher circuit was found in Radio Electronics from the 90s. The circuit must be powered by a...