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Old 28th December 2003, 11:45 AM   #11
dhaen is offline dhaen  Europe
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Talking mili mili mili........

It's Frank's "American" side coming out
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Old 30th December 2003, 04:14 PM   #12
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Someone's taking me on here.....come on.......who says SS isn't on for HV amp power supplies?.....HP have been using this for decades in their test equipment and so have I and not one has come back due to duff PSU's. Do the physics and there's nothing wrong with them. As for SS regies changing the sound sonically, if they are put in the right place <simply.. No>


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Old 30th December 2003, 04:38 PM   #13
miguel2 is offline miguel2  Portugal
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Well, I made a really sweet psu for a preamp sometime ago. Donīt recall the rectifiers, but I used after a 4.7uF film, 10k resistor, 4.7uF film and a pass transistor made the rest. Very nice indeed. And a 4.7uF near the tubes.

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Old 30th December 2003, 07:34 PM   #14
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Quote:
Originally posted by richwalters
Someone's taking me on here.....come on.......who says SS isn't on for HV amp power supplies?.....HP have been using this for decades in their test equipment and so have I and not one has come back due to duff PSU's. Do the physics and there's nothing wrong with them. As for SS regies changing the sound sonically, if they are put in the right place <simply.. No>
Well, I have been smelling something odd in Frank's direction...

Come on Frank, don't bogart it.....

Tim
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Old 30th December 2003, 07:48 PM   #15
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Hi,

Quote:
Come on Frank, don't bogart it.....
I did say:

Quote:
Just my opinion...
O.K.....I'll leave you to it if you promise me not to use those mF symbols...

Cheers,
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Old 30th December 2003, 07:57 PM   #16
dhaen is offline dhaen  Europe
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Default Back on topic...

Designing PSU's for valve's is no different than for anything else. Only the component values vary, as described by the previous posters.
Perhaps the main change is that chokes become practical, both in LC and CLC arrangements.
Here is a link to the most commonly used and free PS simulator:
PSUD2 Play with the simulator until you feel comfortable. It'll do SS and valve recifiers.

If you have a PC it'll run. If you have a Mac, contact me.

IMO Valve rectifiers win, if only because they've got built-in soft-start
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Old 31st December 2009, 11:38 AM   #17
AJT is offline AJT  Philippines
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Quote:
Originally Posted by brsanko View Post
anybody now where I can find some good info on how to design a SS power supply for a tube amp.
powersupplies
this is very informative, i am hooked to the full wave voltage doubler circuits of patrick turner...
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Old 31st December 2009, 12:02 PM   #18
Brit01 is offline Brit01  United Kingdom
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I've had a few blown 1N4007 diodes. I would opt for the 3A diodes.

If you've got your mind set on SS then I would include a good CCS, (even with a valve rectifier).

Just completed my first plate CCS with a pentode and it totally tranformed the music. I mean dramatically IMHO.
Ok I lose lots of voltage through a valve CCS but depends what you are driving. Just a 6N1P was my case so efficiency wasn't an issue.

Quote:
Here is a link to the most commonly used and free PS simulator:
PSUD2 Play with the simulator until you feel comfortable. It'll do SS and valve recifiers.
Yep this is a great tool well recommended.
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Old 31st December 2009, 12:09 PM   #19
AJT is offline AJT  Philippines
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the virtue of the full wave "voltage doubler" as espoused by Patrick Turner is that power transformer design is very simple and easy, none of those 400-0-400volt windings of tube rectified power traffos that required more attention to insulation requirements...
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Old 31st December 2009, 01:47 PM   #20
SY is offline SY  United States
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The downside of voltage doublers needs to be recognized, though- worse load regulation.
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