Raoul_Duke
Enlightened
Pete 20.1vbulb wow! Noticed get the same amount of voltage reduction with favorite NTC or AW's driver. 6x3.3v 19.8v nominal, looks like maxed out. 6x3.7v(emoli)22.2vbat, your getting about 1v sag in your circuit. 21.2vbulb may not instan-flash 64458. One NTC might be too much.
2xemoli with NTC, 5761 last night got 8.17vbat, 6.9vbulb. That why think might be too much
Exciting stuff!
Jim
Certanly is Exciting stuff!
There is so much good info in this thread, Driving Hotwires for reasonable runtimes on Emoli has brought us a long way. Glad I jumped on them a while back.
I have been sitting reading lots but been to busy to post much on this recently.
However:
Fired up my first 64458 tonight in a 6D with 5 Emoli .
19.3V on the 5 resting cells, and 18V on the pin to tailcap whilst running. 9.8A
The cells were brand new, and read 3.87V on them, They haven't been charged yet.
the output was comparable, and may be arguably brighter, than my 64623 in a 6C on 4 Emoli.
That was running on a 4 x Emoli 14.4 V resting pack, 14V from the bulb pin to the tailcap. 9.3A. Did notice an initial spike of 12+A.
these 4 cells have been used and are reading 3.82V now.
I was hoping for a bit more from the 458 on 18V, compared to the 6C x 4 emoli 64623 it wasnt all that, but as Jim mentioned the 64623 realy does shine on 4 Emoli, I have even insta flashed one, on a fresh~ish pack, and the cells weren't even quite at 16.8V altogether ( around 16.6V)
But I will charge the cells tomorrow, and have fully charged comparison.
Good Idea on the 5C with extras to do the 4 Emoli, its a grat platform, and all the bits are still obtainable, I managed to get the emoli's in the C's without boring, and very thin tape, but its snug.
I have 2 more 6C's to experiment with, and near all the lamps osram do from 20W up to 100W, I'd like to try a good balance in at least one build to be able to manage the heat for the full length of the packs runtime.
I'm certanly looking forward to Lux Luthor testing the lamps, as I now think most of the 20W to 90 W lamps need in the region of 5 Emoli, some maybee 6.
Hopefully the IRC lamps realy like 6 Emoli
I had been thinking for a long time of the 458 in one of my 7C's, which I will no doubt do;
But now wonder if a 458 in a 6D and 37mm extention and 6 emoli's can be tamed by JimmyM, If he will build a max trim pot into his switch i'm going to need, as I think I will blow this mag switch soon on 12A.
Still, I very much doubt that will stop me from putting 7 Emoli in a 6D with both the 37mm & the 73mm extentions on the end to try with the 64655, and hope it likes the initial Kick up the behind. That lamp only has 50Hrs on it, so i'm guessing ita already being driven very hard at 24V.