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High voltage PSU
High voltage PSU
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Old 3rd June 2005, 10:04 AM   #1
Hojvaelde is offline Hojvaelde  Denmark
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Question High voltage PSU

Hello

I am planning (looking at my money and counting ) a SV572-3 SE amplifier.
If I want a tube rectifier. What tube can I use. I have close to 2000 Volt from negativ half periode to DC level. Current 200 mA.

Any good idears?

Regards

Benny
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Old 3rd June 2005, 10:35 AM   #2
Fuling is offline Fuling  Sweden
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Take a look at damper diodes like 6AU4, 6AX4 and such.
I have a bunch that Im giong to use in a 750V PSU for an 813 amp, if you google a little you can find info about using such as power rectifiers
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Old 3rd June 2005, 11:09 AM   #3
EC8010 is offline EC8010  United Kingdom
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6CL3
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Old 3rd June 2005, 11:17 AM   #4
Hojvaelde is offline Hojvaelde  Denmark
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Default HV PSU

Thanks

6AU4, 6AX4 is to small < 140 mA but 6CL3 is fine.
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Old 3rd June 2005, 04:26 PM   #5
Alastair E is offline Alastair E  Wales
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Default How about the PY 500A

Used as Horizontal Efficiency diode in many old British/European TV's--Usually easy to find, and reasonably priced NOS........

As I recall, the PIV is 2.5KV, with anode 500mA More than enough for your PSU.

Drawback is the heater volts around 36 if I recall correctly! Are you thinking Bridge or half bridge rec?
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Old 3rd June 2005, 04:41 PM   #6
Yvesm is offline Yvesm  France
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Default Ey500 !

Quote:
Drawback is the heater volts around 36 if I recall correctly! Are you thinking Bridge or half bridge rec?
42 !
Exists in 6.3v heather version, know as EY500.

They feature very hi heather to cathode insulation that may save two additionnal (and heavy insulated) winding from the Xformer.
Philips says 6KV peak.

Yves

Perhaps good also in doubler ?
Halves voltage Xformer and H to K insulation requirement.
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Old 3rd June 2005, 04:51 PM   #7
Alastair E is offline Alastair E  Wales
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Default OOps!

Well, It has been nearly 20 years since I was a TV engineer playing round with the likes of Pye Hybrids and Decca 30's!--Whats a few volts between friends!

Was thinking it was the same as the PL 509----

Go On, Tell me Im wrong on that one too!
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Old 3rd June 2005, 06:46 PM   #8
Yvesm is offline Yvesm  France
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Quote:
Go On, Tell me Im wrong on that one too!
Yeap, 40 !

Just cos I've Data Sheet in the 'puter !
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