Re: [TCML] SISG Boards+Parts for sale

[Dan Kline <misterpaslow@xxxxxxxxx>]

Hi Scott(?)
That's too bad about the one set of IGBTs. Can a diode be wired in for them?
The auction says that 'parts needed' are SIDACs for two boards, and that parts 
included are SIDACs for one board.
Are there any other SIDACs that can be used in place of the discontinued SIDACs?
Thanks for the info!
Dan




________________________________
From: Quarkster <quarkster@xxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Wed, June 1, 2011 10:14:09 PM
Subject: Re: [TCML] SISG Boards+Parts for sale

Dan -
 
Not sure if you are aware of this, but the 300 volt SIDACs required to complete 
two of your three boards were discontinued several years ago, and are nearly 
impossible to find.
 
Unfortunately, the FGA25N120 IGBTs are not suitable for use with these boards 
because they do not have an internal anti-parallel diode.
 
Also, the auction description states that SIDACs are included for two of the 
boards (24 SIDACs would be required), but the photo shows 12 SIDACs, enough for 
only one board.
 
Regards,
S. Hanson

--- On Tue, 5/31/11, Dan Kline <misterpaslow@xxxxxxxxx> wrote:


From: Dan Kline <misterpaslow@xxxxxxxxx>
Subject: [TCML] SISG Boards+Parts for sale
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Date: Tuesday, May 31, 2011, 12:57 PM


All,
I have 3 unused Mark Dunn SISG spark-gap boards for sale, along with almost all 
of the parts required to build these boards, including the IGBTs. All that is 
missing are the resistors and the SIDACs for two of the boards. Everything else 
is included: heatsinks, mounting hardware, transorbs, caps, diodes, screw 
terminals, SIDACs for one of the boards, etc. Please take a look at ebay auction 

# 150612733367 for pictures of what comes with these boards if you're 
interested.
Thanks,
Dan
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