Question - Type 19 tube

mc352 · 20th April 2011, 11:14 PM

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.

Vargas · 21st April 2011, 01:30 AM

Try here,

NJ7P Tube Database Search

Jaime · 21st April 2011, 02:53 AM

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

mltube · 21st April 2011, 09:21 AM

This tube make for a very nice "Twinplex Regenerative Receiver".
It was very popular in 1936 as a DIY one tube radio.

mltube · 21st April 2011, 09:37 AM

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

FlaCharlie · 21st April 2011, 10:14 AM

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

MrCurwen · 21st April 2011, 10:22 AM

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.

mc352 · 21st April 2011, 04:29 PM

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.

kevinkr · 21st April 2011, 04:50 PM

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.

Jaime · 21st April 2011, 05:16 PM

Caution.
Headphones must be high impedance.
Jaime

20th April 2011, 11:14 PM	#1
mc352 Learning as I go diyAudio Member Join Date: Sep 2010 Location: CT	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.

21st April 2011, 01:30 AM	#2
Vargas diyAudio Member Join Date: Apr 2008 Location: Michigan	Try here, NJ7P Tube Database Search __________________ When you got'em by the ball's their heart's and mind's will follow!

21st April 2011, 02:53 AM	#3
Jaime diyAudio Member Join Date: Apr 2004 Location: Montevideo	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 __________________ I write in English worse than Tarzan

21st April 2011, 09:21 AM	#4
mltube diyAudio Member Join Date: Feb 2010 Location: Fergus Falls, MN	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.

21st April 2011, 09:37 AM	#5
mltube diyAudio Member Join Date: Feb 2010 Location: Fergus Falls, MN	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

21st April 2011, 10:14 AM	#6
FlaCharlie diyAudio Member Join Date: Feb 2004 Location: Gainesville, FL	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

21st April 2011, 10:22 AM	#7
MrCurwen diyAudio Member Join Date: Feb 2010	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.

21st April 2011, 04:29 PM	#8
mc352 Learning as I go diyAudio Member Join Date: Sep 2010 Location: CT	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.

21st April 2011, 04:50 PM	#9
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	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. __________________ www.kta-hifi.net

21st April 2011, 05:16 PM	#10
Jaime diyAudio Member Join Date: Apr 2004 Location: Montevideo	Caution. Headphones must be high impedance. Jaime __________________ I write in English worse than Tarzan

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