This circuit is intended to switch high frequency antennas using common diodes. The circuit is from an 80's documentation appearing in other versions in this same section of the site.
This circuit is from a 1977 publication for radio amateurs presenting a crowbar protection. The...
Found in a 1965 Motorola documentation, this circuit uses a neon lamp as a trigger element. The SCR...
Twin-T oscillators can be used to produce sinusoidal signals in the audio track with good...