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Old 12th December 2003, 02:25 PM   #1
Ralph is offline Ralph  Netherlands
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Default Replacement for 5R4

Hi all, I like to try some different rectifier tubes, just to experience the differences.

Now I'm using 1x Raytheon JAN5R4WGB (530-0-530 @ 120mA) and 1x RSD 5Y3GT (210-0-210 @ 20mA) per channel. Can you recommend other types or brands to experiment with?

Ralph
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Old 13th December 2003, 04:58 AM   #2
SHiFTY is offline SHiFTY  New Zealand
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Mullard GZ34. 'Nuff said.
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Old 13th December 2003, 10:50 AM   #3
markp is offline markp  United States
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Quote:
Originally posted by ShiFtY
Mullard GZ34. 'Nuff said.
If you can find a real one that isnt too expensive!
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Old 13th December 2003, 11:50 AM   #4
Ralph is offline Ralph  Netherlands
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Much too expensive ...

My 5Y3
My 5R4
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Old 13th December 2003, 12:49 PM   #5
grataku is offline grataku  United States
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Lynn Olson uses 6CJ3's and this guy has lacks no money to spend in audio.
I would also try a little outside-the-box thinking and look at a hybrid rectifier which makes for a much more transformer-friendly duty cycle, an aspect that is too often forgotten by tube builders.
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Old 13th December 2003, 01:08 PM   #6
Previously: Kuei Yang Wang
 
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Default Re: Replacement for 5R4

Konnichiwa,

Quote:
Originally posted by Ralph
Hi all, I like to try some different rectifier tubes, just to experience the differences.
I like 5R4 (RCA Brown base ST Envelope) & WE274A/B best among all rectifiers I tried, including Mullard GZ34 (fine), Mullard GZ32 (beware of Voltage/Current Ratings - very good), Mullard GZ37 (so-so), various 5U4 and related....

Sayonara
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Old 15th December 2003, 09:46 PM   #7
jlsem is offline jlsem  United States
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Quote:
Now I'm using 1x Raytheon JAN5R4WGB (530-0-530 @ 120mA) and 1x RSD 5Y3GT (210-0-210 @ 20mA) per channel. Can you recommend other types or brands to experiment with?
If you are using a choke input, the 5U4G, 5Z3G, and 5X4G are all good. For pure value, the 5X4G is excellant - WWII era RCA 5X4G's are identical to the highly vaunted VT-244 but for pin-out and can easily be had for $2-$3.

John
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Old 15th December 2003, 11:53 PM   #8
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Hi,

Just surprised nobody mentioned the mesh plate German or Durth AZ series yet...

Hear a difference in rectum friers, check your PSU gents.
Spreading urban myths is not going to earns you any brownies....

Cheers,
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Old 16th December 2003, 10:02 AM   #9
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Quote:
Originally posted by grataku
look at a hybrid rectifier which makes for a much more transformer-friendly duty cycle, an aspect that is too often forgotten by tube builders.
Please explain
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