Re: Herbach & Rademan
From: Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Friday, November 21, 1997 6:53 PM
To: Tesla List
Subject: Re: Herbach & Rademan
> From: Joshua Resnick[SMTP:seraphim-at-WPI.EDU]
> Sent: Thursday, November 20, 1997 10:24 PM
> To: Tesla List
> Subject: Herbach & Rademan
> I got my new H&R tansformers today. They put out about 3.5kV each for a
> total of ~7kV rms or 10kv peak at 300 ma. I wired them up and let the
> sparks fly between two electrodes. These things really pump out the HV
> amps. I have a few questions though as this is my first attempt at
> I'm a college student and live in a dorm, therefore when the coil is
> complete it wouldn't be a very good idea to turn it on in a building
> filled with network lines and sensitive computers. But would it be safe
> to operate the primary to test and adjust the spark gap with the
> secondary away from the unit?
You'll generate high levels of radiated hash. You'll also hammer the
> I'm well prepared to spend days in the shop building a cap for this
> unit, but I'm just as ready to buy one. Does anybody know of a
> supplier of ~50 KV caps around .08 uf acceptable for coil use?
> A good supplier of magnet wire spools (20~22 awg)?
> Approximate chokes required for my transformers at 100khz?
As high an inductance as you can wind.