This sophisticated workbench power source was found in 90s Radio Electronics. The maximum current is 15 A and the voltage can go to 37 or 42 V output.
This elaborate mixer is from an Electronics Today International from the 80s. Operational...
This dual-band receiver was found in documentation from the 1970s. The original transistors are...
This circuit was found in a 2005 documentation. The triac must have a heat sink and the time is...