29KQ6 Datasheet

jfitz57 · 13th March 2010, 05:22 PM

Hi. I'm new here and this is my first post. I am in the process of building an amp based on 29KQ6/PL521 sweep tobes. I searched the web and found enough information to complete the project but I can't find an acual datasheet.
The tube was developed by RCA around 1974 (AFAIK). I'm wondering if anyone out there has an RCA Recieving tube manual that lists this tube. Thanks in advance.

Jim

HollowState · 13th March 2010, 07:03 PM

Except for the filament power (29V/.3A) it's the same as a 21KQ6. NJ7P Tube Database Search

jfitz57 · 14th March 2010, 04:11 AM

Yes, and thanks, I looked at the link and it said RCA 1975. I could not remember where I had saeen that before. Like I said, I searched the web.
Just in case you are curious (why would you or I be here)?
the amp is going to be a direct drive amp for electrostatic loudspeakers.
The choice of the 29KQ6 is $money$. I'm getting 10 of them (8 for the amp + 2 spares) for $1.00 each and I can connect 4 of them in series and not need a transformer (29 X 4 = 116). That's for the 4 "bottom" tubes. The 4 top tubes is a little bit more complicated but I've got an idea or 2.

Jim

13th March 2010, 05:22 PM	#1
jfitz57 diyAudio Member Join Date: Mar 2010 Location: Western Massachusetts U.S.A.	29KQ6 Datasheet Hi. I'm new here and this is my first post. I am in the process of building an amp based on 29KQ6/PL521 sweep tobes. I searched the web and found enough information to complete the project but I can't find an acual datasheet. The tube was developed by RCA around 1974 (AFAIK). I'm wondering if anyone out there has an RCA Recieving tube manual that lists this tube. Thanks in advance. Jim

13th March 2010, 07:03 PM	#2
HollowState diyAudio Member Join Date: Aug 2006 Location: Taxland, New Jersey	Except for the filament power (29V/.3A) it's the same as a 21KQ6. NJ7P Tube Database Search __________________ "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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14th March 2010, 04:11 AM	#3
jfitz57 diyAudio Member Join Date: Mar 2010 Location: Western Massachusetts U.S.A.	Yes, and thanks, I looked at the link and it said RCA 1975. I could not remember where I had saeen that before. Like I said, I searched the web. Just in case you are curious (why would you or I be here)? the amp is going to be a direct drive amp for electrostatic loudspeakers. The choice of the 29KQ6 is $money$. I'm getting 10 of them (8 for the amp + 2 spares) for $1.00 each and I can connect 4 of them in series and not need a transformer (29 X 4 = 116). That's for the 4 "bottom" tubes. The 4 top tubes is a little bit more complicated but I've got an idea or 2. Jim

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