High voltage PSU

Hojvaelde · 3rd June 2005, 09:04 AM

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

Fuling · 3rd June 2005, 09:35 AM

Take a look at damper diodes like 6AU4, 6AX4 and such.
I have a bunch that I´m 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

EC8010 · 3rd June 2005, 10:09 AM

6CL3

Hojvaelde · 3rd June 2005, 10:17 AM

Thanks

6AU4, 6AX4 is to small < 140 mA but 6CL3 is fine.

Alastair E · 3rd June 2005, 03:26 PM

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?

Yvesm · 3rd June 2005, 03:41 PM

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.

Alastair E · 3rd June 2005, 03:51 PM

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!

Yvesm · 3rd June 2005, 05:46 PM

Quote:

Go On, Tell me Im wrong on that one too!

Yeap, 40 !

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

3rd June 2005, 09:04 AM	#1
Hojvaelde diyAudio Member Join Date: Jan 2005 Location: Denmark	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

3rd June 2005, 10:09 AM	#3
EC8010 diyAudio Moderator Emeritus Join Date: Jan 2003 Location: Near London. UK	6CL3 __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

3rd June 2005, 10:17 AM	#4
Hojvaelde diyAudio Member Join Date: Jan 2005 Location: Denmark	HV PSU Thanks 6AU4, 6AX4 is to small < 140 mA but 6CL3 is fine.

3rd June 2005, 03:26 PM	#5
Alastair E diyAudio Member Join Date: Feb 2004 Location: South Wales	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? __________________ Das Beste Oder Nichts

3rd June 2005, 03:51 PM	#7
Alastair E diyAudio Member Join Date: Feb 2004 Location: South Wales	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! __________________ Das Beste Oder Nichts


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3rd June 2005, 09:35 AM	#2
Fuling diyAudio Member Join Date: Aug 2001 Location: Sweden (Mora)	Take a look at damper diodes like 6AU4, 6AX4 and such. I have a bunch that I´m 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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