Mega What

rjxj wrote:

westend wrote:
Nice work! What is the width of one of those supplies?

I think it's about 4 3/4 inches wide, 7 3/4 long and about 2 or 2 1/2 tall.
The Radio Shack project box is 7x5x3

I wasn't brave enough to remove the board and try to remove the pot. I may try to do it this winter when we stay at my sons house. That way I'll be able to say I used it a few times before I ruined it.

Thanks for the dimensions. I'm anticipating getting one of these or similar at my local electro-surplus joint. I have some 6" x 6"-1/8" wall aluminum box that will fit the PS and sundry bits well. I really dig on making these small devices.

Here's a variac I cobbled up out of the same 6X6:



If I really wanted to throw some dough at this, I could use a charge-sense circuit and really make it universal. As it is, it's a good tool for it's purpose, a timed top-charger or equalizing device. Kudos to Mex for the design. Have you used it yet?

Unless they used some crappy 4 layer board with bad traces, the pot should fall out of the board when desoldering. No sweat involved. Of course, that's easy for me to say since I got one of these dandy Hakko 808 desoldering guns.