Coffee hadn't kicked in when I posted, but I assumed 120/240 would have been interpreted correctly. However, either the primary or secondary on one NST will have to be reversed from when you were paralleling both in phase. You can gang two variacs (Powerstats in my case), or if you don't use the neutral, use a 240 volt variac, like I do on my pig. But yes, the secondaries will need to be paralleled, not seriesed.
From: BrianB <brianb@xxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Wednesday, April 8, 2015 9:34 AM
Subject: Re: [TCML] Tesla Coil parameters list like Tesla Map software (i.e. spark length, secondary height, # of NSTs)?
Just use a 240vac circuit with a Neutral and all will be fine
L1-N-L2
Regards,
BrianB
> On Apr 8, 2015, at 4:35 AM, Jim Lux <jimlux@xxxxxxxxxxxxx> wrote:
>
>> On 4/8/15 1:47 AM, Yurtle Turtle via Tesla wrote:
>> Series connecting primaries is no different at 240 volt than connecting one at 120. Maybe I wasn't clear. We were trying to keep from tripping the breaker, no?
>>
>
> Oh yeah. that's fine. series the 120V primaries to feed from 240V.
>
> Note that they have to be the same size NST or the voltages won't divide evenly. If you have a 15 mA transformer and a 30 mA transformer, and you series the primaries, there's a good chance the 15mA transformer will have more voltage on the primary than the 30mA one.
>
>
>
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