Measurements on radio
MW ferrite antenna
MW IF Transformer
MW/LW transistor radio HF stages
Ferrite antenna and its strange winding
8-transistor Deluxe radios
AM radio IF amplifier - testing with a signal sweep generator
Measuring on walkman's head
Testing with sawtooth generator and scope
A-V characteristics for 2 Nokia mobile chargers
Measuring energy consumption of haushold devices with Energy logger 4000
Ferrite memory of a minicomputer under scope
3 ways how to get an AM - amplitude modulated signal
a typical MW radio oscillator
a typical MW radio mixer (converter)
tracking a directly coupled audio amplifier
on/off periodic timer with NE555 for switching a solenoid water valve.
another directly coupled AF amplifier - a method for investigation of an unknown wiring.
directly coupled audio amplifier once again with 60 ohm loudspeaker.