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Old 9th September 2008, 05:30 PM   #1
lineup is offline lineup  Sweden
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Question 6N23P, 6S19P anybody knows?

hi.

anybody knows these tubes? 6N23P, 6S19P
are there any equivalent replacement tubes?

is about one OTL Headphone amplifier circuit using 230 Volt supply
V1 = 6N23P .... V2,V3 = 6S19P

see attachment
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Old 9th September 2008, 06:22 PM   #2
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6H23pi is considered a 6922.

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Old 9th September 2008, 08:08 PM   #3
lineup is offline lineup  Sweden
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yeah, thanks,
I did figure this out 6922, E88CC, 6DJ8

the others = output stage tubes I have never heard of
anybody?

by the way, i found that schematic at one russian site
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Old 9th September 2008, 08:33 PM   #4
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6S19P = apr. ED8000 /tubedepot.com/
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Old 9th September 2008, 09:33 PM   #5
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6S19P is something like one section of a 6080/6AS7/6N13P.
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Old 9th September 2008, 09:38 PM   #6
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The 6S19P is similar to the American 7233, which is not cheap or common even here in America. The pinout is different. The 6S19P is common on Ebay. I got a box full from the Ukraine for $3 each. It is probably close enough to 1 section of a 6AS7 that a 6AS7 could be made to work.
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Old 9th September 2008, 11:30 PM   #7
lineup is offline lineup  Sweden
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thanks for all information
i think now, i will be able to find a similar tube
if i go for this headphone OTL ( Output Transformer Less ) amplifier

there will be a way.
if not find ABSOLUTE equal tubes for output,
will probably be possible to alter resistors in output

Is it two Tubes SRPP output?
.. unless I am mistaken

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Old 11th September 2008, 12:19 AM   #8
lineup is offline lineup  Sweden
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if looking at my schematic, in first post

Wouldn't it be possible to use 6H30pi in the output PUSH-PULL?
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Old 11th September 2008, 10:41 AM   #9
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Of course, but You must make fase-invertor befor PP 6N30P /or selfinvertor - I have this one/.
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