Re: Twin Tesla coils

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Kurt Schraner by way of Terry Fritz <teslalist-at-qwest-dot-net>" <k.schraner-at-datacomm.ch>

Hi Scott, Robert,

Robert was mentioning "two primarys in PARALLEL": is that true? Might this 
be the reason for difficult tuning? In my 8" Twin, I have the primaries in 
SERIES, and never had problems for tuning. Tuning was exactly as 
calculated: tap set at half the inductance of an ordinary quarterwave 
single TC, for each of the 2 primaries. See my twin at:

http://home.datacomm.ch/k.schraner/movie1.htm    (2002)
http://home.datacomm.ch/k.schraner/tc8sparks.htm (1999)

Current sparklength is set to 2m at ~3kVA, limited by the size of my 
basement lab (distance to walls only 0.4m).

Kurt

Tesla list schrieb:
>Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" 
><Rscopper-at-aol-dot-com>
>In the beginning, that's exactly what happened.  I have the system set up 
>to be able to swap back and forth at will, or even tap from the outside of 
>the primary inward (haven't experimented with that yet).
>I haven't had a chance to even unpack the crates since the Oct. 
>cheese-head TeslaThon, but since it's starting to get warmer...........
>Scott
>
>In a message dated 4/4/2003 10:01:32 PM US Eastern Standard Time, 
>tesla-at-pupman-dot-com writes:
>
>
>>Original poster: "Chris Roberts by way of Terry Fritz 
>><teslalist-at-qwest-dot-net>" <quezacotl_14000000000000-at-yahoo-dot-com>
>>
>>
>>So Scott, in the end you basically had the exact same setup as a
>>conventional coil system, with two primarys in parallel instead of just one
>>right? And they still arced to each other despite both coils being exactly
>>the same? And did you tune the coils by moving the primary tap on both at
>>the same time? Hmmmm... that would be the coolest thing if you could set up
>>the coils to "repel" each other, causing the sparks to fly away from the two!
>
>