Sorry to revive this old thread but it fits here. I have a Tek 585 transformer and plan on building a variation of Pete's supply.
So the question, is the GU50 suitable for this? It certainly is on price.
Also, if you see this Pete. I have worked out all the ratings for the later version of the 585 transformer Tek number 120-0141-00. I have emailed you but I guess my subject line was hopeless and got filtered out. If you would like my data to stick on your Tek transformer page I can mail it to you.
Cheers
Matt.
So the question, is the GU50 suitable for this? It certainly is on price.
Also, if you see this Pete. I have worked out all the ratings for the later version of the 585 transformer Tek number 120-0141-00. I have emailed you but I guess my subject line was hopeless and got filtered out. If you would like my data to stick on your Tek transformer page I can mail it to you.
Cheers
Matt.
Of course it is.
You could also use the original russian version with 8 (!) GU50 and max. 600V - 600mA:
http://www.jogis-roehrenbude.de/Roehren-Geschichtliches/Roehren-Netzteile/uip-1.pdf
You could also use the original russian version with 8 (!) GU50 and max. 600V - 600mA:
http://www.jogis-roehrenbude.de/Roehren-Geschichtliches/Roehren-Netzteile/uip-1.pdf
An externally hosted image should be here but it was not working when we last tested it.
I got an UIP-1 a month ago. My version is with SS-rectifier, but tube sockets and wiring for 5Z8S's are there too.
The problem with SS-rectfiers is very high standby voltage at all ranges. Therefore I plan to restore the old circuitry.
But do you know what are those output terminals between the transformers at the lower photo (that you attached) ?
The problem with SS-rectfiers is very high standby voltage at all ranges. Therefore I plan to restore the old circuitry.
An externally hosted image should be here but it was not working when we last tested it.
But do you know what are those output terminals between the transformers at the lower photo (that you attached) ?
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Yes, I've studied the manual, but there is no detailed specs for the transformer.
I'm curious about the output voltage of the secondary windings as I intend to build a bench HV PSU similar to this УИП-1.
Thanks,
Duong
Hey,
I'm sorry artosalo, but I don't own one of those. I never had the chance to buy one. It seems that these are more rare than the L1-3 and L3-3 tube testers.
There are only very few western PSUs that big, like the Philips PE1532 with 8 EL34.
I'm sorry artosalo, but I don't own one of those. I never had the chance to buy one. It seems that these are more rare than the L1-3 and L3-3 tube testers.
There are only very few western PSUs that big, like the Philips PE1532 with 8 EL34.
I have measured my UIP-1 after I fixed it. My version is equipped with silicon rectifiers, but the transformer seems to be original with heaters for 4 x 5Z8S.
Therefore the rectified DC is quite (=too) high at all output ranges.
For example at 600 V range the +Ub is some 1050 V, but because there are 8 pcs. of GU50 the max. dissipation/ tube is still within the limit.
I would suggest to use some 300 V higer +Ub, than the max. output voltage is.
In case of 600 V out, the +Ub would be 900 Vdc and corresponding AC-voltage would be some 700V.
Ofcourse this depends a lot of the type of the tube used. GU50 seems very optimal, since it can handle well high anode-cathode voltage.
Thanks alot, I already have a chassis with 5 ГУ-50 and some noval sockets for this job. Filament transformer is already available, all I have to do is to find a proper HV transformer.
I might copy the design of this УИП-1 but the rectifiers and auxiliary supplies will be solid state.
Talking about the УИП, I've once came across an old УИП-2 (uses 6C33C as pass device), too bad it has been damaged beyond repair so I had to let it go. Very nice and interesting design.
Regards,
Duong
Well -
I was about to toss the old 535 'scope, I'd already rescued all the tubes and contemplated pulling the Power Tranny but did'nt think it would suit an amplifier. Had'nt thought about it for a HV Supply which is rather silly as I have put aside 4 off 12E1 specifically for building a HV Supply. THis was posted just in time for me to salvage the power tranny too.
Thanks Pete.
Cheers,
Ian
I was about to toss the old 535 'scope, I'd already rescued all the tubes and contemplated pulling the Power Tranny but did'nt think it would suit an amplifier. Had'nt thought about it for a HV Supply which is rather silly as I have put aside 4 off 12E1 specifically for building a HV Supply. THis was posted just in time for me to salvage the power tranny too.
Thanks Pete.
Cheers,
Ian
Thanks guys, just wanted to be sure it was a good candidate and it looks like it is.
That supply is a beast. 8 GU50 for only 600mA it certainly is built to last. All the data I have seen shows max anode current as 150mA but gives no mention of max cathode current. I guess it could survive a giving 600mA at something like 100V with the range switch set for 600V or if the transformer/rectifiers are up to it over an amp up at 600V or so. Built like a tank.
Cheers
Matt.
That supply is a beast. 8 GU50 for only 600mA it certainly is built to last. All the data I have seen shows max anode current as 150mA but gives no mention of max cathode current. I guess it could survive a giving 600mA at something like 100V with the range switch set for 600V or if the transformer/rectifiers are up to it over an amp up at 600V or so. Built like a tank.
Cheers
Matt.
If you are going to make a big bad power supply, why not make it more efficient.
Some HV power supplies use a Variac, or cam driven relay switches to vary xfmr taps, to vary the raw DC voltage before the regulator stage. That way the regulator operates (Vref driven by a pot on the Variac shaft typically) with near constant (and low) voltage drop. Using a regulator tube with more current rating (like 6KG6/PL509 at 500 mA) can reduce the number of tubes drastically. Or use a Mosfet.
Some HV power supplies use a Variac, or cam driven relay switches to vary xfmr taps, to vary the raw DC voltage before the regulator stage. That way the regulator operates (Vref driven by a pot on the Variac shaft typically) with near constant (and low) voltage drop. Using a regulator tube with more current rating (like 6KG6/PL509 at 500 mA) can reduce the number of tubes drastically. Or use a Mosfet.
When the range switch of UIP-1 is set to 500V to 600V (=max.) the output voltage can be adjusted between some 450 V to 620 V only.
This ensures that output tubes will not be overloaded when max. 600 mA current is output.
Am I right in interpreting the schem for this supply... in that I see zeners setting the error amp plate supply to 36, 24, 20, 15V below the 807 cathode (plus cathode resistor drop)?
From the curves I've found, -15V will never get 100mA out of an 807. Am I missing something?
edit: flag that, I've found other curves that say it definitely will. I promise I really thought about this and searched first.
From the curves I've found, -15V will never get 100mA out of an 807. Am I missing something?
edit: flag that, I've found other curves that say it definitely will. I promise I really thought about this and searched first.
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Artosalo,
Well he must meant the bench supply by Peter Millett.
Coincidentally I've just reread all the documents of these bench HV supplies. I'm thinking build one for myself since my Kikusui 350V/200mA just went to heaven.
Before going to clone/copy those UIP/Tektronic/Phillips... I'm still thinking of going hybrid way, for example penthodes instead of mosfet in Maida-based regu.
What do you think?
Duong
Well he must meant the bench supply by Peter Millett.
Coincidentally I've just reread all the documents of these bench HV supplies. I'm thinking build one for myself since my Kikusui 350V/200mA just went to heaven.
Before going to clone/copy those UIP/Tektronic/Phillips... I'm still thinking of going hybrid way, for example penthodes instead of mosfet in Maida-based regu.
What do you think?
Duong
Another Bench Supply thread that may be of interest too:
http://www.diyaudio.com/forums/tubes-valves/287090-bench-supply.html
http://www.diyaudio.com/forums/tubes-valves/287090-bench-supply.html
Do you plan to build one that is adjustable from 0 V to 350...V ?
What is your specification ?
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