6AC7 Amplifier (T450E)

Obtained in MIT documentation, this 4-stage circuit has high gain for small signals. The power supply sources 150 V.

Schmitt trigger with programmable hysteresis (CB10111E)
This circuit was found in an American documentation from the 70s. The operational amplifier is...
Programmable Audio Switch (CB18672E)
The purpose of this circuit found in an old documentation from the 90's is to switch on low...
ERB RD RE Series and RG Microcomputer Fuses
March 2017 - The new ERB-RD, ERB-RE and ERB-RG fuses from Panasonic's Micro Chip Fuses can now be...