A really SIMPLE way to convert a nanjig 17mm driver to a 20mm driver with these blank PCB driver disks.
Everyone probably knew about these nifty little disks except for me, but if you didn’t know, you do now. I mentioned these in my Aleto zoomer thread, but thought they would get better visibility in their own thread.
These little disks are the best thing to happen to budget lightolier modding since Fasttech, which unfortunately does not carry them. Found them on banggood. Actually I think Gords sent me a link many moons ago. Shipping is SOOPER fast, or at least it has been for me. Like 7-10 days.
IMPORTANT EDIT: Apparently Fasttech DOES carry these. Guess I should research a little better before I post something. Ooops. Here they are at fasttech also:
https://www.fasttech.com/products/1138202
IMPORTANT NOTE: Banggood says these are 22mm, but apparently they have a ruler from Mars. These are DEFINITELY 20mm.
Beauty of these guys is that a 17mm nanjig driver spring fits EXACTLY in the blank disk’s hole. No messy wires taking up room, dangling from the bottom of another blank disk. PLUS, because the nanjig piggybacks so close to the blank disk, this setup really takes up very little extra room. I have only found one 20mm pill out of maybe 12 that was too small to take a nanjig/blank-disk piggyback.
Ah but what about the neg connection? If you look closely, the nanjig and the blank disk have a few tiny holes near the edges. Simply cut a tiny TINY jumper from normal emitter connection wire and solder it from a tiny hole on the driver to the tiny hole on the blank disk.
A drop of solder to hold the spring in the hole and you’re done. Remember to jumper any stars BEFORE soldering the disks together because the mode stars will be inaccessible once the piggyback is complete. And battery springs straddle the hole, so I haven’t had a problem adding any springs.
Some other fasttech drivers with larger springs will also work with these if you stretch the spring out a bit and thread ’em through the hole. You could also drill a larger hole I suppose.
Hope this helps.