dane999 wrote:Alright, that's perfect. One last question, and I stop bothering you... What would you recommend for powering those and adding a on/off LED ? I'm not very keen on putting a power tx in side the rack because of the un balanced wires in it. Do you have a clean way to make this externally, via say a SMPS, and then get +-18v rails internally ?
We use our tiny 48v 15w internal SMPS turned down to 36v and fit 18v zeners to the regurgitator pcb to make +/-18v. A 6.8k resistor in series with a cheap led between _18v and +18v works fine.