Flood alarm (CB7994E)

This circuit is from a 90s Popular Electronics. The transistors are of general use and the buzzer is a Sonalert type.

Instrumentation preamplifier (CB6838E)
This circuit was found in a Hands On Electronics from the 90s. The circuit does not need a...
Two Diode Balanced Modulator (CB4233E)
This is yet another balanced modulator circuit for SSB transmission. This two-diode circuit was...
MU425S Power Supplies (COM113E)
September 2016 - Mouser Electronics is already providing power supplies for professional medical...