Simplistic Mosfet HV Shunt Regs - Page 260 - diyAudio
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Old 23rd January 2012, 08:40 PM   #2591
Salas is offline Salas  Greece
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The top 2540 and the 840 need sinking. Drop times current is correct.
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Old 23rd January 2012, 09:25 PM   #2592
Tea-Bag is offline Tea-Bag  United States
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Buzz, use a monster one for the 840.
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Old 24th January 2012, 12:53 AM   #2593
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The 840 will be on a 3/4" piece of aluminum which is the outside of the case. This is assuming my diy version of the sshv2 works. I tried to copy Salas' layout best I could with my cheap CAD program.
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Old 24th January 2012, 01:51 AM   #2594
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Quote:
Originally Posted by Salas View Post
It will still carry the disclaimers, of ''quit if it ain't working on your application when assembled OK itself'', and ''Don't mess with high voltage if you haven't done enough such stuff already and knowing precautions, grave injury or death danger is involved!''.

Use precaution with high voltage. Here are some alligator clip probes to keep hands a safe distance away. They are about 250MM long total.
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Old 24th January 2012, 06:34 AM   #2595
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Tea-Bag,

Please count me in for 1 SSHV2 board soon as it is available, dude....

Do you take payment by PayPal??

Do you stock the semi and other parts for the SSHV2 as well??

Thankyou, and Happy Chinese New Year mate....
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Old 24th January 2012, 08:53 AM   #2596
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Quote:
Originally Posted by buzzforb View Post
The 840 will be on a 3/4" piece of aluminum which is the outside of the case. This is assuming my diy version of the sshv2 works. I tried to copy Salas' layout best I could with my cheap CAD program.
Whith high voltage, I avoid to use the case as heatsink
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Old 24th January 2012, 09:21 AM   #2597
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Good advice. I plan to insulate with kerofal, but ill consider another route for safety sake. I am intentionally being very careful since this is my first tube buils
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Old 24th January 2012, 01:26 PM   #2598
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Even if you insulate, think the Merfy's low
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Old 24th January 2012, 01:29 PM   #2599
Salas is offline Salas  Greece
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Ground chassis to mains safety earth and fuse primary always, especially when doing high voltage.
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Old 24th January 2012, 01:34 PM   #2600
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Salas,
that advice works for Primary side faults.

Secondary is isolated from Primary.
Fuses and Earthing on the Primary side do not reduce the risk of shock from the Secondary side.
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