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Old 21st April 2011, 12:14 AM   #1
mc352 is offline mc352  United States
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Default Question - Type 19 tube

I am kind of new to the tube experience. I found a couple of type 19 tubes. I wonder if someone can tell me what this tube was typically used for?

Maybe I can incorporate it into a amp project some day.

Thanks in advance for the info.
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Old 21st April 2011, 02:30 AM   #2
Vargas is offline Vargas  United States
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Try here,

NJ7P Tube Database Search
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Old 21st April 2011, 03:53 AM   #3
Jaime is offline Jaime  Uruguay
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It is a direct heating double triode (DHT).
Push Pull B class one only tube in very old radio.
You can make a low power amp (<1w)
Jaime
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Old 21st April 2011, 10:21 AM   #4
mltube is offline mltube  United States
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Default The #19 tube

This tube make for a very nice "Twinplex Regenerative Receiver".
It was very popular in 1936 as a DIY one tube radio.
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Old 21st April 2011, 10:37 AM   #5
mltube is offline mltube  United States
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Default The 19 tube

I would be willing to swap some more common Audio tubes for them. I have been wanting to build the twinplex for some time now. I have almost any tube you mention except el34's. If interested just PM me with your ideas.
Have a great day
Mike
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Old 21st April 2011, 11:14 AM   #6
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Default Possible Paraphase?

Could the 19 or the 1J6G, which is the octal version, be used as a paraphase splitter? I have some of the octals and I was thinking about using them as a paraphase front end driving PP 47s.

. . . Charlie
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Old 21st April 2011, 11:22 AM   #7
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With those curves I'd use it as a guitar amp power stage. Possibly two in parallel. I had a 1G6G power section once and it worked great.
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Old 21st April 2011, 05:29 PM   #8
mc352 is offline mc352  United States
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Guys,
Thanks for all the info.
It might be fun to build a receiver. I'll have to hunt for a schematic.
I will give some thought that, or possibly swapping them for other tubes, like mltube suggested.
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Old 21st April 2011, 05:50 PM   #9
kevinkr is offline kevinkr  United States
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Build a Doerle Twinplex with a single 19, details are here: http://www.bignick.net/images/RadioPix/TwinPlex.pdf and http://www.bignick.net/TubeRadio.htm

TJ Lindsay published a reprint of the Doerle Twinplex book some years ago which is now unfortunately out of print. Worth having IMHO.
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Old 21st April 2011, 06:16 PM   #10
Jaime is offline Jaime  Uruguay
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Caution.
Headphones must be high impedance.
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