Roman numeral display (CB22160E)

This circuit shows numbers I II and III when mounted on its side, depending on the position of the selector switch.

15 V x 1 A power supply uA723 (CB19023E)
The integrated circuit used in this power supply is no longer very common in power supplies today....
Power Oscillator 741 (CB15616E)
This circuit is basically the same as the previous configuration (CB15616E) with a power stage with...
Wireless Guitar (CB18103E)
This 2003 circuit was designed to be installed on a guitar, taking advantage of the magnetic...