I did a driver mod.
FET+1 modded to 19+1, totalling 20x 7135.
Hereās the pics:
Iām just not a fan of direct drive, so the FET had to go.
Original plan was 12x or 14x 7135 for an Astrolux S3, but:
Inside a copper sheet 16mm circle 19 of them will fit.
This will fit snugly in most pills for decent cooling (with some thermal goo).
Positioned them with grey epoxy before soldering them to the copper enclosure.
Added solder paste for thermal and electrical path to the copper āwallā.
Heating it up inside a pill to keep the wall in shape.
Had to do it twice because the paste loses about 50% volume when soldered.
Thin ring for the + and a fatter one for the - output. Both have lips for soldering leads.
Behold a 6.65 Ampere Constant Current donut.
Leads on driver PCB for + to the 19x 7135 and - from the on board 7135 to the - output of the donut.
Made some room with a rotary tool so the copper wall can be soldered to the outer ring trace of the PCB.
Hole in PCB for + wire spring bypass.
More epoxy as solder mask and to keep the parts in place and to join PCB and donut.
Donut and PCB soldered together, bypassed spring added.
Output side. Black wire soldered to output lip of the donut.
Epoxy added to secure the lot a little extra.
NOT TESTED YET ! Praying it will workā¦ :person_facepalming:
Iāll be using it (if it works) in a S2+ triple with either XP-G3 or 219C.
Waiting on blue S2+ host and XP-G3 S4 3A from Fasttech.
Planning on de-anodizing and polishing the S2+, especially after seeing that beauty vwpieces produced.
I donāt like coloured lights too much, but i wanted that switch boot.