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  • 1 month later...
Posted

Anyone about to build this, Megatron, etc and don't want to use a dropping resistor, I might have some spare power supply boards for tube front ends soon. O0 Works up to 250V no problem, 300V is possible if you find caps that fit and heatsink appropriate parts properly.

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  • Like 4
  • 1 month later...
Posted (edited)
56 minutes ago, Pars said:

Sounds like the consensus was t-POS...


Sent from my iPhone using Tapatalk

What ? T-Perfected-Over-Standard ? JK, but that is sad....we need Stax to be serious again

Edited by Whitigir
  • 1 month later...
Posted
On ‎2017‎-‎07‎-‎06 at 7:26 PM, kevin gilmore said:

power jumper block cleaned of all the epoxy

j1,j3,j4 for 100v remove all others

j2 j3 j5 for 120v remove all others

j5,j6 for 240v remove all others

and servo board pictures, unnecessarily complex

tube rollers are going to have a lot of trouble with this, the servo has a pretty limited range, and the Russian similar's definitely will not work

 

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How to make the servo less complex?

  • 4 months later...
Posted

Draft of dual 6922 input (similar to T2 input), with current tunnel (as Carbon etc.)

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Voltage cross 2sa1486 580V and 700mW of heat.

  • Like 4
  • 3 months later...
Posted

Trying to use the above draft in a board layout. The print out is roughly a quarter of the original DIY T2 board in size. Output section reminds of T2 less unnecessary parts.:peter:   This is progressing very slowly and I’m thinking it might go into trash can before it gets to the CNC router. Hmm..  probably trash can.

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  • Like 2
Posted

More paper work. Width incl. heat sinks 9.5in and length 7.9in. No angel brackets sands mounted direct on heat sinks, saves 1.6in.

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  • Like 5
Posted

Very nice Joachim!

With the micro golden reference HV power supplies (which do work very nicely) and lower voltage (less caps) you could get the power supply size down a bit as well :) 

  • Like 2
Posted

Thanks.

Yep, your micro power supplies are very interesting. My idea is to make a PSU with +/-15V, +220V, +400V and -460V.

Shooting from the hip - how about producing 580V (BIAS) by GRHV? 

Posted

All components are now on the right channel board. More work is to be done but so far it has gone quite nice.

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By the way, I think I've learned netlisting and I love it - tells me when I'm out of track.

  • Like 5
Posted (edited)

 

29 minutes ago, spritzer said:

Netlisting is even better if we were ever to bother with schematics...which we never do.  ;D

You guys have it in you - the schematic in your heads. I’ve no head and therefor I use schematic which I derive from your layouts    hihihihi

Edited by JoaMat

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