Found on a Radio Electronics this 80's circuit uses two common SCRs driving lamps. This setting appears elsewhere in this site and this section.
September 2017 - Vishay Siliconix SQ MOSFETs for automotive use are in stock for immediate...
Using in operational amplifier is possible to increase the dissipation power of a zener. This...
In the figure we have the use of one of the four existing amplifiers in the LM2900 and LM3900 as a...