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Group Buy for KG's Boards (2nd)


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I've got the permission from Dr Gilmore for a second run of boards, so let's do it again.   Linky to the spreadsheet: https://docs.google.com/spreadsheet/ccc?key=0AoNVeoQi85GgdFVrMmtReVpWNVBsQUo2Sl

LK, you shouldn't end up out of pocket for this GB!  If those shipping cost don't start working out to break even for you please let me know and I'll be happy to do what I can to assist with closing t

I kind of went overkill on it...   HV 420V 430mA x 2 17-0-17 1.2A   6.3vdc power supply 9v 30VA   6.3vac filaments Using 3 (2x 30VA; 1x50VA)   For the PS board I'm using 2222A instead of 3

 

then you want a pair for balanced, one for each foot.

 

Hmmm

Balanced foot warmers. :)

I suppose I could always use a pot for the bias....

Then I'll have temp control... :)

next stage ... remote control for temp control...

Who said DIY is excessive? :)

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Looks like I will include the KGSSHV mini PSU for the Megatron.

So each set of Megatron includes 1x amp board + 1x KGSSHV mini PSU.

 

I am also working on something very similar to the Sigma22, will include that with the Dynahi, if you want. Or, AMB shop is the way to go. :)

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I know that Glassjar sells Sigma kits, but lately there were reports of problems with communication.

 

In any case- worth checking out!

Yeah, indeed. Their communication is quite arbitrary.

Recently I had to wait one week to get their response for a single transformer.

 

Most of the S22 parts can be ordered from Mouser though.

 

It's great to see the big interests in the Megarton. I built a Megatron some time ago and current draw was about 122mA for the 500V sections and 11 mA for 300V section. If I remember correct the current limit for KGSSHV PSU is about 90 mA. Maybe one mini PSU won't be sufficient for the Megatron, unless some modification.

 

Many thanks Tran for another group buy.

Thanks for the heads-up, Joachim.

Hopefully Dr Gilmore will chime in about this.

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