[Jukebox-list] 6973 tube

[Juke of Shrewsbury]

Gary,
A jumper is just a short length of wire. You need to connect pin 1 to pin 8 
on each of the sockets that hold a 6973. In a real 6973 this connection is 
made inside the tube, in the substitute it's not, so you need to make it 
externally.

Remember that there is no real substitute for a 6973, while some other types 
may work with this jumper modification, you will not get the full power 
output. I think Electro Harmonics are now reproducing the 6973 so you should 
be able to get hold of a set at a reasonable price.

Adrian.
----- Original Message ----- 
From: "Gary Stevens" <gstevens1 at sc.rr.com>
To: <jukebox-list at lists.netlojix.com>
Sent: Saturday, September 09, 2006 8:36 PM
Subject: [Jukebox-list] 6973 tube


>I have a 1963 Rock ola amp that uses four 6973 tubes. I was told if you sub 
>them with a 6EM5 tube you would need to install a jumper between the 1- 8 
>pins. Can anyone explain this to me how to install a jumper? Any help 
>appreciated.
>
> Thanks
> Gary
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