Need a low VAC DPDT relay for a model railroad project. When activated (NO contacts Close) a 110v power supply for a sound card turns on.
Low voltage AC relays are generally 18 or 24 vac. My Lionel transformers supply 16vac. The train speed control when set to 12 vac delivers 10-13 vac. This is too much variation for the relay to handle reliably.
I have a YIJIA (that's Y I J I A) model YJ2N-LY, 12 vac but have forgotten how to compute the in-series resistance needed to bring the supply voltage down to coil specifications.
Suggestions for relays and help with the calculation will be most appreciated.
Nat Pulsifer
Low voltage AC relays are generally 18 or 24 vac. My Lionel transformers supply 16vac. The train speed control when set to 12 vac delivers 10-13 vac. This is too much variation for the relay to handle reliably.
I have a YIJIA (that's Y I J I A) model YJ2N-LY, 12 vac but have forgotten how to compute the in-series resistance needed to bring the supply voltage down to coil specifications.
Suggestions for relays and help with the calculation will be most appreciated.
Nat Pulsifer