[TCML] Heathkit IM-5210 HV Probe

["Jim Harvey (UDN)" <harvey.james@xxxxxxxxxxxxxxx>]

I bought a Heathkit IM-5210 HV Probe today at a ham fest. No manual...

I have not taken it apart (yet) nor tested it.

Question:
It has an ON/OFF switch which implies it might have a battery inside.
Otherwise, why a switch?

Anybody know or, better yet, anybody have a PDF of the manual?

73 & Stay Vertical,

Jim Harvey (W7YV) - The Great Curmudgeon
P.O. Box 18009
Salt Lake City, UT 84118
http://www.harveyclan.net
http://www.harveyclan.net/w7yv.htm

FIST # 13337
SKCC # 3194

"Calling CQ was like a box of chocolates. You never know what you're gonna
get." 
 

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Ed Phillips
Sent: Saturday, February 28, 2009 9:34 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] aluminum magnet wire

BOTTOM LINE:
AL will reduce the "Q Factor" (Xs / Rs) by the ratio of 40.81/67.0, or
0.609. This is a 39% decrease in Q. This leads to a 39% decrease in peak
voltage."

	Only true for the case where there is no streamer loading - suspect
the difference in performance would be negligible.  I'll bet that few coils
are really limited by secondary resistance because the loaded Q is so much
less than the unloaded Q.  

	Comments from those who have made measurements?

Ed


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