This benchtop equipment was found in Radio Electronics magazine from April 1960. The two double valve circuit is powered from mains power.
This incandescent bulb stroboscope was found in the February 1974 issue of Radio Electronics...
We found this circuit in Mullard's 1960s transistor manual. The circuit oscillates at 800 Hz, the...
This amplifier uses an integrated circuit from the 70s, which is no longer common on the market. The...