Re: [TCML] SISG success

[bartb <bartb@xxxxxxxxxxxxxxxx>]

Hello Zapp,

Quarkster wrote:
> Bart -
> A few questions:
>  
> 1. You stated that the tank capacitor is connected in parallel with the SISG, but the coil wouldn't run in that configuration. The tank cap, primary coil, and SISG must all be in "series" so that when the SISG switch "closes", the tank cap discharges into the primary.

Here's a simple schematic which should explain the circuit.
http://www.classictesla.com/sisg/sisg.gif
This is the circuit Terry Fritz used on his small SISG (prior to 
Piranha). This circuit was "mechanically" ideal for my cap bank.

>  
> 2. It looks like you have a ventilation fan either pressurizing (or evacuating) the enclosure, but where is the air outlet (or inlet)?

There is an exit hole at the bottom corner side panel behind the rotor 
stationary area (bottom corner of the SISG panel). It's not shown in the 
picture as it's below the stationary mounting bracket (which was a quick 
throw-together in July). Hole diameter is 2.5" (air blows hard out of 
that hole).

>  
> 3. I'm not sure what you meant by "The circuit is running full bridge". The SISG circuit has no resemblence to any type of "full bridge" switching topology.
I meant a full wave bridge rectifier. The voltage connected across the 
load from V+ and V- is in the same direction for both half cycles. That 
is all I was referring to. One ear of my pig is tied low, thus one side 
of my bridge is tied low (in case you were wondering about that also). 
The AC simply does not float but has an RF ground reference.

Best regards,
Bart
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