A secoder is a electro-mechanical dial pulse decoder use for selective squelch on railroad two-way radio systems. Its an old but very clever design.
YOUTUBE zqw4n37i2Hs Published on Jan 30, 2013
Secoder ModeledA secoder is a electro-mechanical dial pulse decoder use for selective squelch on railroad two-way radio systems. Its an old but very clever design.
YOUTUBE zqw4n37i2Hs Published on Jan 30, 2013