Looking for a good 300B datasheet

alexmoose · 12th June 2006, 06:07 PM

Does anyone know of a good 300B data sheet? I have been googling like a mad-man, and haven't found one thats good yet any help would be great.

i_should_coco · 12th June 2006, 06:09 PM

click me

alexmoose · 12th June 2006, 06:11 PM

you're awesome

kevinkr · 16th June 2006, 09:40 PM

Here's another site that might be useful. Note that the WE 300A is electrically identical to the slightly later 300B. I am not sure what the exact differences are between the two, but the 300A is very rare. I've seen just one pair.

http://frank.pocnet.net/index.html

You can find the datasheet for another current production tube at the JJ website - JJ300B, note the difference in filament current rating.

TomWaits · 17th June 2006, 04:53 AM

Here a good 300A

http://frank.pocnet.net/sheets/136/3/300A.pdf

Frank's got tube.

Cheers,

Shawn.

Eli Duttman · 17th June 2006, 01:31 PM

Look here. The 2nd of the 3 sheets has USEFUL operating condition data.

jlsem · 17th June 2006, 02:52 PM

Quote:

I am not sure what the exact differences are between the two, but the 300A is very rare.

The difference is in the the location of the bayonet pin. The 300A is the same as an 811A, 830B, etc. The 300B has the pin in its own special place.

John

kevinkr · 17th June 2006, 09:05 PM

Hi John,
Thanks for the info.. I knew it was some trivial detail, but just what it was I didn't know. Any idea why they decided to change the bayonet pin location?

12th June 2006, 06:07 PM	#1
alexmoose diyAudio Member Join Date: Mar 2006 Location: Michigan	Looking for a good 300B datasheet Does anyone know of a good 300B data sheet? I have been googling like a mad-man, and haven't found one thats good yet any help would be great.

16th June 2006, 09:40 PM	#4
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	Here's another site that might be useful. Note that the WE 300A is electrically identical to the slightly later 300B. I am not sure what the exact differences are between the two, but the 300A is very rare. I've seen just one pair. http://frank.pocnet.net/index.html You can find the datasheet for another current production tube at the JJ website - JJ300B, note the difference in filament current rating. __________________ www.kta-hifi.net

17th June 2006, 04:53 AM	#5
TomWaits diyAudio Member Join Date: Aug 2005	300A Here a good 300A http://frank.pocnet.net/sheets/136/3/300A.pdf Frank's got tube. Cheers, Shawn.

17th June 2006, 01:31 PM	#6
Eli Duttman diyAudio Member Join Date: Apr 2004 Location: Plainsboro, NJ	Look here. The 2nd of the 3 sheets has USEFUL operating condition data. __________________ Eli D.

17th June 2006, 09:05 PM	#8
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	Hi John, Thanks for the info.. I knew it was some trivial detail, but just what it was I didn't know. Any idea why they decided to change the bayonet pin location? __________________ www.kta-hifi.net

12th June 2006, 06:09 PM	#2
i_should_coco diyAudio Member Join Date: Dec 2003 Location: Surrey, UK	click me

12th June 2006, 06:11 PM	#3
alexmoose diyAudio Member Join Date: Mar 2006 Location: Michigan	you're awesome

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