[TCML] Timing SRSG
joe at killerowls.com
Sun Jul 25 15:39:06 MDT 2010
Took the entire coil apart (didn't unwind primary) and rebuilt the power supply, stand, etc.
New SRSG <http://yfrog.com/20zhij>. Using the same white polyethylene, which I could tap and bolt down, then covered in sheets of G10 for the stanchions to hold up the static electrodes. Two NSTs in parallel to give 15/90.
Decided to try 240bps to see what's what - and I did notice it was much better behaved in terms of gap timing, as one would expect, and with the Freau phase shifter, I can almost shift the angular distance between two spinning electrodes, so it's nearly complete control. Either I'm going deaf or it's true - the sound is not as roaringly deafening as it was with 120bps.
Though, power does seem decreased from the 120bps setup as I had been warned here on TCML. But I had to see it for myself.
On Jul 25, 2010, at 10:29 AM, Joe Mastroianni wrote:
> So I have a question:
> I'm on my 3rd SRSG (pics to follow), which is probably a step backward in time. I went from an SRSG with a 4" G10 disk, to a propeller gap, and now to a 7" G10 disk with 4 electrodes in the configuration seen on the websites of old. I just wanted to see if perhaps there was some better current handling and timing capabilities of this gap compared to the propeller gap, as I have eight 1/4" tungsten rounds all facing each other at each presentation. 120BPS.
> One thing I was playing with - I tried timing the SRSG with nothing at all connected but the NSTs and the Terry Filter. In that configuration, with the Freau phase controller, I reached what I thought was TDC, and indeed may have been.
> Then I connected the the whole resonator : cap bank + primary coil, and secondary, and what I found is that what I thought was TDC, was now no longer TDC. I guess this should be obvious to me, as the resonating ckt must add some non-zero power factor and associated phase shift.
> But I guess the dumb side of me wants to believe I could time it without the LC primary + secondary, and have it be the same after. Or perhaps I could just go and calculate the PF and then adjust the timing on the SRSG motor by exactly those number of degrees and see if it would work in practice?
> ANyway, is there any way to adjust the timing on the SRSG without trying to run the whole coil?
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