"TonyL" wrote in message
...
I've found a couple of HY60 amplifier modules in my junk box. I have a
data sheet which indicates a +/- 25v power supply voltage rails
requirement but no indication of current. Power into 8 ohms is 30W. If I
put a power supply together what sort of current should I be expecting to
supply to each module ? Presumably, a simple dual rail
transformer/rectifier/electrolytic type of supply would be OK ?

Any gotchas with this project ?

Thanks

TonyL

Nice little amps!

Assuming that you're not going to be using these amps to drive some extreme
loads, then 30 watts into 8 ohms is a current of 1.94 amps, add a little for
the amp's overhead, and so you need a minimum of 2 amps per amplifier. If
you're building a single supply to power both amps, then I would go for a 5
amp supply. If the 'speakers you're going to use are closer to 4 ohms than
8, you may like to double the current capacity.

No particular "gotchas" with these as far as I'm aware, they do what they
say they do.

S.
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