An article in Radio Electronics magazine from November 1958 showed the construction of this tube audio oscillator. Note the use of lamps as a stabilizer to obtain better sinusoidal signals.
The high sensitivity of this type of SCR recommended in our assemblies allows it to be triggered by low...
The circuit shown is from National Semiconductor's Linear Applications Handbook. It makes use of...
September 2016 - It can be obtained from Mouser Electronics the new integrated circuit µCC21520...