Found in Motorola documentation from the 90s, this circuit makes use of a triac from that time. The circuit is for the 110 V mains but can be modified for other grid voltages.
This circuit is from a Ferranti publication of 1968. The circuit generates a signal according to the...
This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can...
This circuit is from a Hands-On Electronics from the 90s. The integrated amplifiers used are well...