Re: VTTC Resistor Values And Transformers

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Chris Arnold" <chris_arnold-at-msn-dot-com> 

Adam,

For the resistors you should be able to use the components you specified 
very easily.  That is one of the rather forgiving things about a tube coil 
circuit - their relative insensitivity to minor variations of most values 
within reason (tank circuit excepted of course).

The 10 V transformer for the filament supply will most likely be very 
difficult to find.  The most common solution that I've heard of is to take 
a microwave oven transformer, cut off the secondary windings and wind your 
own approximately 10 turn secondary of a moderately heavy (10-12 AWG) wire 
in it's place.  Most 120 V MOTs here in the states are about 1 V per turn.
Can't say for the 240 V ones you'll probably find there.  Removing the 
shunts as far as I can tell is completely optional.  I personally left them 
in to curb inrush current while the filament is cold.

Good luck with your tube coil circuit - they're really interesting.  Just 
be careful with that plate supply.

Chris Arnold