actual measurements & pictures of the TC in action
I measured my EMMC of 2 strings of 10 of the panasonic 1600V .056u at an
actual 11.16 nF. That is UP(!) from right after its construction before
its first use. Then it was 11.13nF.
I also measured everything else I could clip my little meter leads to
Primary .012mH .0179
Pri & wiring .016mh NA
Secondary 7.8 mH 7.6
Cself 62pF 7.10pF
Ctoroid 86pF 21.4pf
Csparkgap .048nF NA
C nst sec-gnd .038nF
R nst second 5.95kO
L nst primary 34.1mH
DMM is a wavetek 27x and all values are adjusted from base reference.
It looks like wintesla was VERY close on primary and secondary L, but
either my meter won't go low enough or wintesla was wrong on the C's.
Has anyone else measured this stuff? Do my other measured values look
I finally got off my lazy butt and took some pics of my coil in
operation. It's so easy to take non-operating pics with a digital cam
that I have film cam motivation problems! Anyway, I used a $100 Pentax
K1000 with manual everything, a pentax 35mm 2-22 f-stop lens, a $20
tripod, f stop at 4, shutter on bulb. I ended up with the best combo at
4 seconds. I used crappy Fuji 800 ISO film. Anyway, more info, along
with the pics, is posted on my site. http://tesla.better-dot-org/sgd
I think my coil is simply not bright enough to have a chance of getting
away with 100 or 50 ISO. Shutter time would have to be around 12
seconds or more and I'm already getting too many sparks for my taste.
Next project is to set up the ol' camcorder then run the tape through my
cap card and make some AVIs.
Incidently, I accidently left my Kodak DC120 digital cam in the room
while doing the manual pics and it was fine. It was about 8' away and
probably saw a total of 4 minutes of the TC being on.