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Chip Amps Amplifiers based on integrated circuits

Tube rectifier for VDIGC tube psu
Tube rectifier for VDIGC tube psu
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Old 11th March 2004, 09:09 AM   #1
ebijma is offline ebijma  Netherlands
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Default Tube rectifier for VDIGC tube psu


I want to build a VBIGC.
And was thinking about the tube psu.
It has to be possible to use a Tube rectifier in the psu for the 6922.
The reason i want to do this is because the psu will be slow starting.
So no power up sounds.
And they (some tube forums) say the tube rectifiers sound better.

Do any of you know more about this things.

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Old 11th March 2004, 12:52 PM   #2
PeteM is offline PeteM
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Thorsten came up with an idea of using a valve rectifier here


Problem is you need to delay the chip supply not the buffer,you will still get noise when the buffer starts to conduct.

I have a valve buffered chip amp along with others and we appear to agree,that atleast 20 seconds is needed to obtain zero startup noise.

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Old 11th March 2004, 04:02 PM   #3
leadbelly is offline leadbelly  Canada
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Tube rectifier for VDIGC tube psu
The PS design in this page is closer to what you want because it is for 6922's:


For avoiding the turn-on thump, I think Joe Rasmussen's design of a small transformer left powered up continuously is most elegant, which is probably why everyone on this forum avoids building it that way
There are still unbridgeable divisions between cultures. How can two peoples ever come to understand each other when one of them is ignorant of TotÚ? Umberto Eco
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