What do you know about the 23D4?

Captn Dave · 16th September 2009, 01:50 PM

I picked up close to a cubic yard of tubes at a sale a while back and just yesterday I discovered some Amperite 23D4 triodes. At least I think they might be triodes.

They have Octal bases and are about the size of a 100watt bulb.

None of my manuals mention this tube and I have not been able to search for anything useful. (It doesn't help that Lucas made a distributor with that designator)

Anyone familiar with these?

Tom Bavis · 16th September 2009, 02:28 PM

Amperite made ballast tubes and delay relays - either should be fairly obvious.

Wavebourn · 16th September 2009, 05:22 PM

23D4 is a ballast tube, like a light bulb carefully engineered as a current source.

16th September 2009, 01:50 PM	#1
Captn Dave diyAudio Member Join Date: Jun 2008	What do you know about the 23D4? I picked up close to a cubic yard of tubes at a sale a while back and just yesterday I discovered some Amperite 23D4 triodes. At least I think they might be triodes. They have Octal bases and are about the size of a 100watt bulb. None of my manuals mention this tube and I have not been able to search for anything useful. (It doesn't help that Lucas made a distributor with that designator) Anyone familiar with these?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

16th September 2009, 02:28 PM	#2
Tom Bavis diyAudio Member Join Date: Jun 2002 Location: Macedon NY	Amperite made ballast tubes and delay relays - either should be fairly obvious.

16th September 2009, 05:22 PM	#3
Wavebourn diyAudio Member Join Date: Sep 2006 Location: Pleasant Hill, CA	23D4 is a ballast tube, like a light bulb carefully engineered as a current source.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)