Hi Ron,
Many thanks for your help.I have located one over here in the UK so I will give it a go.
I will more than likely will be in need of your help again as I am more use to the older Seeburgs than these from the 70's.
Once again many thanks, Best wishes, Martyn.

Hello Ron,
The number of the board is 70-319504-A,
There is not a component number only the O marked C G and A. where the trans locates into the board.
Hope that gives you an idea,
Thanks,Martyn.

Hi Ron,
Many thanks for your reply.
I will try to get a picture up-loaded so you can at least see what I am talking about.
Being a new user to your site it may take me a while to find my way around.
Regards, Martyn.

Hello, I am a new user on this site and am in need of your help. I am trying to kick back into life a E100 77D Topaz. I have freed of the mech and now to start on the electronics. I have purchased Ron Rich's book but it does not tell me the number of the transistor used on the plug-in board in the P...