RE: : The big bad Mark III

["David Dean" <deano-at-corridor-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi Troy,

My experience was static gap, 15 to 20 amps, SRSG, 4.5 to 5 amps for the
same
spark length, all other factors being the same. The spark gap motor draws
about 1.5
amps. This was with 240V input at 120 BPS. Spark length to a grounded target
in
both cases 34 to 36 inches. I use SRSG exclusively now, with the exception
of the medicine
coil which has a static gap, but it is a different kind of animal
altogether, not designed
for long sparks.

just my $0.02
later
deano



>  I am not elaborate enough for a rotary gap yet, esp. since I will be
> running
>  this coil off of a 15 amp 120 circuit. I think if a suitable motor would
>  even run off of 120 it would probably put me overbudget on amps. I will
>  probably start with the RQ gap from my last coil, then build a better one
>  when I have the time. The RQ gap I have is not well built, but
> it does the
>  job. The main problem I think is that the pipe lengths are only 1", thats
>  not alot of surface area for heat sinking. The gap is in a 4"
> pvc pipe and
>  cooled by a muffin fan.
>  Thaks for your reply Dan,
>