Worked first time !

[orac02]

Hi KeBin-San
For the Amp 1 I would go for a transformer of 200VA or upwards
with outputs of about 0-22Vac,0-22Vac
The input for the 5V supply you can get from your positive input rail

You should be able to find something close to this available to you somewhere locally I would have thought . As long as the output oltages are not much higher that should be OK.

MerlinWerks
Yes the heatsinking is more than enough . Ive got fairly sensitive Mission 763 speakers so I havnt turned it up any where near the top.

Jackson Browne on it now is not even making the case feel warm AT ALL

My impression of it so far--
Well I liked my modified Sonic Impact. When i first plugged the amp1b in to some cheap speakers I thought "AHHH I think this is going to be good"
And I think it is .I havnt got the experience of others, with a huge variety of different kit but i do know that there is loads more detail than anything else Ive heard. I think I like what Ive seen described as Its rather clinical sound.
I modified /increased most of the electrolytics which improved the bass a bit further.
One final remark I find that you can play it quietly and not feel you are missing loads of the music which I am sure must be a real compliment.

Cheers

Steve

Not an expert just a happy customer

[panomaniac]

Nice looking project Steve!

But headphones[?][?][?]
You didn't hook them up directly did you?

Aloha
MM

[panomaniac]

Nice looking project Steve!

But headphones[?][?][?]
You didn't hook them up directly did you?

Aloha
MM

[orac02]

Not directly - I fitted a 470r resistor in series with each output and a load of a couple of watts just to give the amp something to do.

Then to a switched headphone socket on the front.

the headphones Ive got are Sennheiser and are, as I recall 300R

Cheers Steve