Solar charger MC34064 (CB14537E)

The integrated circuit used in this charger is not very common today. The circuit is from Motorola's 1990 Linear Databook.

Battery Desulfator Charger (CB19386E)
This circuit, obtained from old documentation, allows the recovery of sulfated batteries. The...
Level Detector (CB4222E)
This 80's circuit uses a small light bulb as an indicator, but an LED with the appropriate resistor...
Super Alpha Amplifier (CB24064E)
This amplifier with the RCA CA3018 integrated circuit was found in the August 1970 issue of Radio...