[TCML] Terry Filter

[Lau, Gary]

Hi Paul,

I myself have no experience (successfully) using OBIT's.  My only ill-fated experience was when I was a total newbie and thought I could series the outputs from two OBIT's.

I can't think of any reason OBIT's would be intrinsically inferior to NST's.  Both have similar construction and specs, and both are current limited.  I would like to think (HA!) that OBIT's being in a more critical application, might be built a bit sturdier than something that just needs to light a sign?  Perhaps it's that the used OBIT's that I and others used were pulled by a serviceman for good reason, and may work just fine on a good day, but...?

BTW, 9kV at 50mA sounds unusual for an OBIT.  Every one I've seen is rated 10kV at 23mA.  OBIT's typically have inconvenient HV terminals, designed to be attached directly to the oil burner.  Are you sure you don't have an NST?

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces at pupman.com [mailto:tesla-bounces at pupman.com] On
> Behalf Of Paul Brodie
> Sent: Monday, December 21, 2009 5:34 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Terry Filter
> 
> Maybe neon sign transformers are better but I got this OBIT for $20 and I've
> already built 2 neon sign transformer coils and as the Monty Python players said,
> "and now for something completely different!"
> 
> So, that said, why do you believe NST's are better than OBIT's? I have no opinion,
> having no experience with OBIT's but I have seen them recommended as TC
> power sources many times by many different people. As usual, I'm just being
> curious.
> 
> Oh yeah, are OBIT's current limited, like NST's or will I have to treat this the same
> as I do the MOT's I have used?
> Paul
> Think Positive

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