Dave, For design parameters check out: http://en.wikipedia.org/wiki/Bias_tee
I use a home brew one for reversing remote beverages which is a .1uf cap and any small rf choke in the 100uh and up range that will handle relay current. In my case the relay current I used as a minimum design level was 150ma. You can buy them or use a binocular core and wind one.
I use only +/- 12v dc, not ac. 73, Les W2LK On 3/26/2013 4:48 PM, David Cole wrote:
Could anyone please point me in the direction of a circuit to feed +12 -12 and AC along the feeder to my beverages to switch 3 relays - thanks all from Dave in the UK All good topband ops know fine whiskey is a daylight beverage. _________________ Topband Reflector
All good topband ops know fine whiskey is a daylight beverage. _________________ Topband Reflector
