Which socket for a 5Y3??

Richard Ellis · 10th November 2008, 01:50 AM

Perhaps a truely stupid question, which socket does a 5Y3 use?
Does it have just the four connections....I'm reading that it uses an octal socket as say a 6SL7 ....with no pins on the other four?
Does it use the four pin that the 300b, 2A3 uses? What other tubes fit the same socket........I've searched & searched........I can't find any reference for it!
___________________________________________Rick... ..

HollowState · 10th November 2008, 01:56 AM

A 5Y3 uses a regular octal socket just like a 6SN7 would. The difference is that the 5Y3 only uses four of the eight pins that would be available. Actually, the tube itself generally has five pins on it's base. One of the five (between the filaments) has no connection.

kevinkr · 11th November 2008, 04:41 PM

Hi Richard,
Franks has lots of data sheets that show the information you were looking for.. Yes it is an octal type, and typically only 5 of the 8 pins are installed, with only 4 being in actual use. Same pin out as 5AR4..

http://www.mif.pg.gda.pl/homepages/f...93/5/5Y3GT.pdf

10th November 2008, 01:50 AM	#1
Richard Ellis diyAudio Member Join Date: Sep 2006 Location: Mar del Plata, a BIG seasonal getaway city, can see the Ocean from our residence.	Which socket for a 5Y3?? Perhaps a truely stupid question, which socket does a 5Y3 use? Does it have just the four connections....I'm reading that it uses an octal socket as say a 6SL7 ....with no pins on the other four? Does it use the four pin that the 300b, 2A3 uses? What other tubes fit the same socket........I've searched & searched........I can't find any reference for it! ___________________________________________Rick... ..

10th November 2008, 01:56 AM	#2
HollowState diyAudio Member Join Date: Aug 2006 Location: Taxland, New Jersey	A 5Y3 uses a regular octal socket just like a 6SN7 would. The difference is that the 5Y3 only uses four of the eight pins that would be available. Actually, the tube itself generally has five pins on it's base. One of the five (between the filaments) has no connection. __________________ "The supercomputer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." ~ Professor of Electrical Engineering, New York University

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