| 
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
 |