I was going to suggests putting trimpot locations on both edges but didn't think that was easily doable with all of the other traces on the boards. I suppose you could use jumpers to go over the other traces and decide which trimpot location you want to be in use.Hi Zen Mod, I don't know what size your FE boards were. The one Nelson laid out was 3.5"x5.5", which put it in the $65 with shipping for 10 pieces.
Hi Mike, I don't think I can change the gerbers from another package though I have never tried to import them (maybe I will have to look into that), I just use the schematic capture and PCB layout program to make new boards. On the new board I am making, it fits between the current long screws which are on a 2.75"x 4.25" pattern. I laid out the PCB to use the 220uf Silmics for C2 and C3. Also I like to use multiturn pots that can be had with the screw on the top or on the side, and you can reverse them, so they can face up or down, and I always try to put them near the edge of the board so easier to adjust, and if possible make a location on both edges so you populate whichever one you want up. I design stuff from the point of easier to service if I can. Too many times working on my car I wanted the Toyota engineers throat in my hands.
You the man, thank you!For managing in-rush current for a transformer and capacitance bank of that size, a larger thermistor will be necessary. I recommend the Ametherm MS22 20005. It has a higher initial resistance and greater current handling capacity. Also more surface area to manage the power dissipation.
Fantastic SMD implementation.decided to rejoice some of my Yore amps with Hitachi laterals
BC639/640 instead of ZTX
MJE340/350 instead of 2SA/SC
see what I'm doing for pico-caps, lazy to search and order through-hole, already having drekload of them in SMD
will post, once when done, actual schematic and some pics
when - who knows, that's lazy work
how do you keep the SMD from unsoldering when you solder add-on legs
to the PCB? Forceps as a heat sink? -nice work around-
Any reason for the substitutes? Just what was handy?
People who have tried directly driving them report big improvements in sound quality, so I’m keen to try it.for that ....... minimized rails voltage, whatever you build
also maximized number of outputs, whatever you build
Pa will tel you how good candidate Stasis is for that
why not finding proper autoformers for that setup (dunno how big task is that, to find them) so you have much easier choice of amp?