These guys seem to produce side contact bases. They probably cost a fortune though.
https://userweb.117.ne.jp/y-s/Teflon socket-5p-e.html
https://userweb.117.ne.jp/y-s/Teflon socket-5p-e.html
Maurizio made such type PTFE sockets ... but it's not so cheap.
https://www.diyaudio.com/community/...on-for-el3n-az1-ad1-az4-ecc-cnc-built.393506/
Yamamoto too...
https://exclusive-audio.jp/en/products/yamamoto-8p-sidecontact
https://www.diyaudio.com/community/...on-for-el3n-az1-ad1-az4-ecc-cnc-built.393506/
Yamamoto too...
https://exclusive-audio.jp/en/products/yamamoto-8p-sidecontact
AZ11 (same as AZ1, besides the base) and the bigger AZ12 might mate better with EL12N's, 'cause they use the same type of tube holders (8 pin German octal). Anyway, as with all directly heated vacuum rectifiers, voltage drop is quite high. EZ12 is superior with this respect, but scarce and expensive. Best match is the EYY13, two individual diodes in a common envelope like the EL12N's and also of former GDR RFT origin.
Best regards!
Last edited:
< AZ11 (same as AZ1, besides the base) and the bigger AZ12 might mate better with EL12N's
I have these and also mesh plate AZ11, more for preamps. Much better sockets. I hate side contact sockets.
But as you say voltage drop is high. So I use 5U4 or GZ34 depending on the B+ needed. And depending on the current required I also have some 5V4 and GZ32. These are all good.
I have these and also mesh plate AZ11, more for preamps. Much better sockets. I hate side contact sockets.
But as you say voltage drop is high. So I use 5U4 or GZ34 depending on the B+ needed. And depending on the current required I also have some 5V4 and GZ32. These are all good.
Hi @andyjevans , I am planning on putting octal bases on the CT rectifiers I have so they are useable. It does not look practical to try and use CT8 sockets unless the tube was something special, like an AD1 for example.
I have these bakelite bases that fit nicely over the CT base of the tube, so the goal is to solder wires to the CT contacts, match the contacts to the octal rectifier pins (i.e. for idh 2(f) 4(a) 6(a') 8(f,k)), then use a silicon mastic to hold the tube in the base after the octal pins are soldered.
So ... you mentioned above that you have a solution for mounting CT8 tubes where you solder to the contacts, but the contacts did not take solder. What were the issues you had? And was soldering to the pin that holds the contact a robust enough connection?
I have these bakelite bases that fit nicely over the CT base of the tube, so the goal is to solder wires to the CT contacts, match the contacts to the octal rectifier pins (i.e. for idh 2(f) 4(a) 6(a') 8(f,k)), then use a silicon mastic to hold the tube in the base after the octal pins are soldered.
So ... you mentioned above that you have a solution for mounting CT8 tubes where you solder to the contacts, but the contacts did not take solder. What were the issues you had? And was soldering to the pin that holds the contact a robust enough connection?
< So ... you mentioned above that you have a solution for mounting CT8 tubes where you solder to the contacts, but the contacts did not take solder. What were the issues you had? And was soldering to the pin that holds the contact a robust enough connection?
Can't remember, sorry!
Can't remember, sorry!