Well as i posted in the Class T thread earlier i received the pair of silly power class D modules in kit form, the only thing that was kind of put together was all the small diodes (1N4148, 2 x 5v6 zener diodes & 1 x 15V zener) were pre fitted to the PCBs but not soldered. They do look alike & the text on each component is tiny - so i hope they got it right

As i really want to get to hear what these things actually sound like i proceeeded to start assembling them in short shift These things are tiny, it just doesn't make a lot of sense in all honesty... Each one is more than capable of over 200W RMS with a 8 ohm load on it's own or 400W RMS with a 4 ohm load They just need a big PSU

If bridged this equates to 800W RMS 8 ohm load, they won't like 4 ohm bridged as the power mosfet (two in one die) won't be able to handle the current... But i tell you this is still mad as you are about to see, i have seen bigger 10W amplifiers

Ok, here is one of the PCBs as received with fitted diodes.



Thanks to MartinT for a rather sensible suggestion of a blob of glue on the bottom of the control IC, ok i didn't go with that but it gave me the idea of holding it in place with good old selotape Cheers Martin notworthy.gif I soldered the leads at both ends on this side & then removed the selotape to do the opposite pins... Then did one at a time to allow the poor thing to cool down, it never felt warm - good news



Now you really have no idea how to gauge scale here so here is a pic of the control IC & my shaky soldering next to a £1 coin, yep these things are kind of small



Where i am now before i had a phone call & vistit from a friend, nearly all resistors fitted. The second PCB is in the same state, so it looks like i'll be carefully initially testing one or both amplifiers this coming weekend, well i'm hoping at least lol..



I'm fairly sure i have a nice big fat toroidal transformer (from a Pioneer 120W RMS 8 ohm channel) that should be ok with these PCBs, though i'll check as the voltage will be at the top of the range & possibly marginal. Initial testing will be done with a much lower supply voltage & with resistors in both + & - rails to restrict current incase something is up. Once all has been established as well with both amps they can be connected to the big supply

More coming shortly...