Re: [TCML] dc tesla coil

["Carl Noggle" <cn@xxxxx>]

All true, but I still miss mickey-mikes for pF.

---Carl






-----Original Message----- 
From: mddeming@xxxxxxx
Sent: Sunday, November 25, 2012 12:56 PM
To: tesla@xxxxxxxxxx
Subject: Re: [TCML] dc tesla coil

Hi Jay, All,


In the early days of radio, amateur and professional, mf or (mfd) meant the 
same thing as uf does today, microfarad. Mmfd meant the same as pf does now. 
This is because the early experimenters and operators were mostly not 
college educated people and did not use the Greek alphabet. However,  mHy 
meant millihenry as it does today because millihenries and microfarads were 
the size units most commonly used in communications which were almost 
exclusively below ~10MHz. They saw no ambiguity in this. When the military 
was trying to convert farm boys into radio operators in 90 days or less( ca 
1941-1945), they decided to keep the notation as simple as possible. and go 
with the established convention. It wasn't until high speed solid state ICs 
in computer and communication equipment became commonplace in the 1970s that 
the terms like giga, tera, nano & pico and their abbreviations started to 
enter mainstream English.


Matt_D


-----Original Message-----
From: jhowson4 <jhowson4@xxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Sun, Nov 25, 2012 1:35 pm
Subject: Re: [TCML] dc tesla coil


Yea the 70mf ones might be a little excessive, but remember the impulse will 
be
limited by the inductors (slightly), but at the same time you will most
certainly want something much much smaller, less the inductor be vaporized .
Looking at mine, its .166uf for some odd reason I thought it was .166 mf, 
but
whatever.
Contact me off list and I will send you an excel doc that should help you 
out.
=)



Thanks,
John "Jay" Howson IV


snip>>>>>>>>>>>>>>>>>>>>>>>>>>>

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