Tube socket for ECC88, drawing

peranders · 1st August 2009, 06:49 PM

This is the very first tube thread for me

I'm searching without success for mechanical drawings for tube sockets for ECC88. Is there a standard for tube sockets or can the pin placement for the socket vary?

SY · 1st August 2009, 07:06 PM

The socket placement is, of course, standard. But there are LOTS of difference mechanical configurations.Typically, one buys sockets and measures them, then does the PCB.

peranders · 2nd August 2009, 07:09 AM

So the socket pins don't always are directly under the pins on the tube?

dsavitsk · 2nd August 2009, 07:50 AM

No, they are a little bit spread out. The only exception I know of are the teflon UX4 sockets. These are not, strictly speaking, actually made for PCBs, but they can be made to work.

Pete Millett has an eagle library on his website with good tube stuff. So does Tubelab. If you want to know what not to do, look at the tube libraries that come with Eagle.

peranders · 2nd August 2009, 08:02 AM

I'll think I'll start with this socket
http://svalander.se/shoppen/tubesockets.htm RH4

BTW: Have you seen my and Mr. Ruschkowski's high-end adapters ?

peranders · 10th August 2009, 11:53 AM

I bought the RH21 socket from Mr. Svalander. It was quite easy to make a footprint

Just wondering, the tubes are shown in "bottom view", right? I have followed the internal wires in the tube and think I'm right here. The tube is E88CC from TAD. This is my very first tube project ever, this "tube buffered gainclone", my take. Rhys' project got me inspired.

Arnulf · 10th August 2009, 01:02 PM

Yes, the datasheets show tube from the bottom. In case of ECC88 it is easy to orient by following heater wires (pins 4 & 5).

Zibi · 10th August 2009, 02:59 PM

http://www.tubeampdoctor.com/index.php?cPath=36_92
Click a socket picture for a drawing.

1st August 2009, 06:49 PM	#1
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	Tube socket for ECC88, drawing This is the very first tube thread for me I'm searching without success for mechanical drawings for tube sockets for ECC88. Is there a standard for tube sockets or can the pin placement for the socket vary? __________________ /Per-Anders (my first name) or P-A as my friends call me

1st August 2009, 07:06 PM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	The socket placement is, of course, standard. But there are LOTS of difference mechanical configurations.Typically, one buys sockets and measures them, then does the PCB. __________________ "...we stumble and get up, we are sad, confident, insecure, feel loneliness and joy and love. There is nothing more; but I want nothing more.” - Christopher Hitchens 1949-2011

2nd August 2009, 07:09 AM	#3
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	So the socket pins don't always are directly under the pins on the tube? __________________ /Per-Anders (my first name) or P-A as my friends call me

2nd August 2009, 07:50 AM	#4
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	No, they are a little bit spread out. The only exception I know of are the teflon UX4 sockets. These are not, strictly speaking, actually made for PCBs, but they can be made to work. Pete Millett has an eagle library on his website with good tube stuff. So does Tubelab. If you want to know what not to do, look at the tube libraries that come with Eagle. __________________ http://www.ecpaudio.com

2nd August 2009, 08:02 AM	#5
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	I'll think I'll start with this socket http://svalander.se/shoppen/tubesockets.htm RH4 BTW: Have you seen my and Mr. Ruschkowski's high-end adapters ? __________________ /Per-Anders (my first name) or P-A as my friends call me

10th August 2009, 11:53 AM	#6
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	I bought the RH21 socket from Mr. Svalander. It was quite easy to make a footprint Just wondering, the tubes are shown in "bottom view", right? I have followed the internal wires in the tube and think I'm right here. The tube is E88CC from TAD. This is my very first tube project ever, this "tube buffered gainclone", my take. Rhys' project got me inspired. __________________ /Per-Anders (my first name) or P-A as my friends call me

10th August 2009, 01:02 PM	#7
Arnulf diyAudio Member Join Date: Feb 2009	Yes, the datasheets show tube from the bottom. In case of ECC88 it is easy to orient by following heater wires (pins 4 & 5).

10th August 2009, 02:59 PM	#8
Zibi diyAudio Member Join Date: Jan 2006 Location: Bialystok	http://www.tubeampdoctor.com/index.php?cPath=36_92 Click a socket picture for a drawing.

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