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About Rectifiers - Can 5R4G replace 5U4G? (Read 1404 times)
bmoze
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About Rectifiers - Can 5R4G replace 5U4G?
02/08/23 at 20:12:24
 
I’d like to verify that a 5R4G Rectifiier can replace a 5U4G.  This is for a Torii Mk4.  I thought I had seen in a post here that it could, but couldn’t find it again.  Thanks.
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Tony
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Re: About Rectifiers - Can 5R4G replace 5U4G?
Reply #1 - 02/08/23 at 20:20:47
 

That's interesting.  I had the same question for my Torii MKIV.
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CAJames
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Re: About Rectifiers - Can 5R4G replace 5U4G?
Reply #2 - 02/08/23 at 20:52:46
 
It will probably work fine, IMO. The 5R4 is in between the 5U4 and 5Y3 (or type 80) in the rectifier hierarchy, so if you'd use a 5Y3 in your amp then a 5R4 will be fine. The concern is that is it only rated for a 4 uF power supply capacitor. But I've used them in in my UFOs with no problem and I fell like the maximum current rating is very high and in general old stock rectifiers are really robust so I wouldn't hesitate. But the JMO/FWIW/YMMV.
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JD
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Re: About Rectifiers - Can 5R4G replace 5U4G?
Reply #3 - 02/08/23 at 21:11:32
 
I've used 5r4gy rectifiers in my Torii III with no issues.


JD
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bmoze
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Re: About Rectifiers - Can 5R4G replace 5U4G?
Reply #4 - 02/08/23 at 23:18:11
 
Just what I needed to know.  Thank you.
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Dilbert99
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Re: About Rectifiers - Can 5R4G replace 5U4G?
Reply #5 - 03/10/23 at 01:35:31
 
Yes, good to know, thanks here as well.
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