Re: [TCML] Old TC restoration advice (correction)

[Futuret <futuret@xxxxxxx>]

correcting my post here;  I meant it's best not to run the ASRG at too
LOW a speed (again assuming it's a variable speed ASRG).  

The original transformer may have provided 60ma or more, which may
explain why performance suffered using the single 9kV NST.  If the
ASRG electrode spacing can be tightened up some (less distance
for the arc to jump) that may help too.   

John

 

 

 

-----Original Message-----
From: Futuret <futuret@xxxxxxx>
To: tesla <tesla@xxxxxxxxxx>
Sent: Sun, Oct 30, 2011 4:24 pm
Subject: Re: [TCML] Old TC restoration advice


Dave,

I think it may be worth trying the two 9kv NST's and Terry gap with


the coil.  The main reason for not using ASRG's is because of 


possible danger of damaging the NSTs but the Terry Filter takes


care of that, along with a safety gap.  Adding the extra NST may


smooth out the operation.  It may help too to boost the NST output voltage


using a step-up  (140V output) variac.  You shouldn't have to re-tune


the primary very much.  It's probably best not to run the ASRG at


too high of a speed if it's the variable speed type.  If it's not variable


speed then there's the issue of possible NST resonance with the capacitor


depending on the cap value.  If the safety gap has to be set too wide


that would be an indication of unwanted resonance.   


Cheers,

John


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