Posts by MisterX

Sure you wouldn't need a single polarity PSU (instead of the dual polarity PSU that was posted in the first post)?

1) The jacks are usually mounted with screws that fit through holes in the panel and are thread into the body of the connector. Panel mounting dimensions are included in the...

You can cover the bottom in tape and draw it all out with a ruler but it's a lot easier to use the circuit board as a template. (Figure out where you want the circuit board to be located inside the case, place it on the bottom...

I normally just use 4-40 flat head machine screws, threaded spacers (standoffs) and...

Richco's circuit board hardware catalog should give you an idea of the number of different options...     http://www.richco-inc.com/products/circuit-board-hardware.html

http://tangentsoft.net/audio/cmoy-tutorial/tweaks.html#dcjack

You'll have to order from Allied if you want a transformer that fits a Q24 board.     http://www.alliedelec.com/search/productdetail.aspx?SKU=70037414

553-F113X

mAh = Wh × 1000 / V   Let's call it 900mAh.   What are the battery dimensions and does it have a protection board "build in" (a picture will help figure that out) ?      

Closer to 2.3 then 2.2 volts but both sides being roughly the same is more important then the actual reading.