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Old 8th April 2013, 08:35 AM   #251
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Join Date: Nov 2011
I would like to buy two PCB-s
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Old 17th July 2013, 02:18 PM   #252
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Location: South Florida
Algar_emi,
has anybody built a higher voltage version of this design to provide 600v regulated output at 50-60 mA?
What component(s) value/tolerances would have to change to accommodate the higher voltage(s)?
TYVM,
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Old 17th October 2013, 10:49 PM   #253
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Location: Columbus, Ohio
Default Are you going to do another Group Buy?

If you do another Group Buy for these HV Shunt Regulator PCB, count me in for
at least four. Let us know. Take care.
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Old 28th January 2014, 05:53 PM   #254
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Join Date: Sep 2009
Location: Preston, Lancashire
Default Two HPHV PCBs for sale

I have two unused PCBs left over from my projects. Please PM if interested in them. One of the boards has been trimmed on all four sides, so is smaller than the other. If you think you can live with this, I can let the boards go for $20 for both. I can throw in all the resistors necessary to build two boards, and some other odds and ends.

I think this is better than putting the PCBs in the dumpster: they cost $25 each, so they were not cheap.
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Old 29th January 2014, 08:26 PM   #255
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Quote:
Originally Posted by M Knight View Post
I have two unused PCBs left over from my projects.
The two boards have been sold.
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Old 17th November 2014, 11:13 AM   #256
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Join Date: Sep 2009
Location: Preston, Lancashire
Default Two HPHV shunt regulators for sale

I now have two built-up HPHV shunt regulators for anyone who wants them. I have discovered, belatedly, that these regs are not suitable for my power amps (Vacuum State DPA-300B) because the amps draw more power than these regs can handle. I have therefore reverted to using the original Allen Wright-designed Superregs.

One of the regs is working, the other not. Unbeknownst to me, the regs were running incredibly hot. The failed board's shunt heatsink has turned from black to gold, so hot did it get. It's possible that all that is wrong with the failed board is that the shunt MOSFET has died. But it's also possible that when the shunt died it took the CCS with it.

So, one working board and one dead board. Anyone interested? PM me and we can agree on a low, low price for the good board with the dead board thrown in for free.
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Old 24th November 2014, 10:00 AM   #257
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The two boards have been sold.
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