Jan Tube question

Hamersveld · 30th March 2011, 04:16 PM

I obtained a box of tubes, most of which are from TVs, I think.
A couple of them though have the same identification as the 5U4G rectifier
tube used in the Scott 222.
they are: Jan-CKR-5U4G 'Ken-Rad VT-244'
They are twice as big or tall though as the one in the scott
Can they be used as a substitute?

Robert

boywonder · 30th March 2011, 06:13 PM

According to Duncan's TDSL data the VT-244 is close or identical to a 5U4, so yes......

A 5U4-G is a 5U4...

TDSL Tube data [VT244]

janneman · 30th March 2011, 07:26 PM

The JAN stands for Joint Army Navy; it's a tightened mil spec version.

jan

Hamersveld · 30th March 2011, 11:16 PM

Thank you all.
I'll try out the 'better' specs tube,
see how it lights up!

30th March 2011, 04:16 PM	#1
Hamersveld diyAudio Member Join Date: Feb 2011	Jan Tube question I obtained a box of tubes, most of which are from TVs, I think. A couple of them though have the same identification as the 5U4G rectifier tube used in the Scott 222. they are: Jan-CKR-5U4G 'Ken-Rad VT-244' They are twice as big or tall though as the one in the scott Can they be used as a substitute? Robert

30th March 2011, 07:26 PM	#3
janneman diyAudio Member Join Date: May 2002 Location: Where Germany, The Netherlands and Belgium meet Blog Entries: 6	The JAN stands for Joint Army Navy; it's a tightened mil spec version. jan __________________ /Another new issue: Linear Audio Volume 3!

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30th March 2011, 06:13 PM	#2
boywonder diyAudio Member Join Date: Jan 2008 Location: So.Cal.	According to Duncan's TDSL data the VT-244 is close or identical to a 5U4, so yes...... A 5U4-G is a 5U4... TDSL Tube data [VT244]

30th March 2011, 11:16 PM	#4
Hamersveld diyAudio Member Join Date: Feb 2011	Thank you all. I'll try out the 'better' specs tube, see how it lights up!

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