Service and Repair

Articles
Title
The Workbench instruments – The multimeter (ART595E)
Components Recovery (SER003E)
Troubleshooting with the Multimeter (SER002E)
Troubleshooting and Repair (SER001)

High Quality Headphone Amplifier (CB12293E)
We found this amplifier in an English publication from 1993. The circuit can be assembled today...
Negative and Positive References (CB19730E)
The 747 operational amplifier used in this circuit is not very common today, but the configuration can be...
Nicad Charger (CB13543E)
This charger is from an old publication of 1975. The PNP transistor can be the BC558 and the NPN...