12vac to 12vdc
Your DC relay may have a diode across its' coil. That would short out the transformers' output for 1/2 of the cycle.
You can get a small full-wave bridge rectifier from your local Radio Shack store for around $1.39+tax.
It has four leads; two are AC (indicated by ~) and the other two leads are DC, marked + and -. You just connect it up. If the relay still buzzes, you may need to add a filter capacitor across the bridge output. This would probably do the trick:
If you have a question, please start a thread/topic. I do not provide gratis assistance via PM nor E-mail, as that would violate the intent of this Board, which is sharing knowledge ... and deprives you of other knowledgeable input.
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