26-05-2015, 04:04 PM
Just to add for Mark's benefit, I got the timebase switch assembly back into the '64 and ensured that the board had a ground! The scope is working, done a 3 hour soak test and all is well.
I leaned on the DM63 which was also on a soak run whilst straightening out the Z connector on the back. Tingles! Oops, 117v to earth! No earth continuity in the mains lead.
Now I have had this before with unusual Tek mains plugs. The spring in the socket eases with use. It takes a slight crush of the rubber moulded plug-in to restore a contact.
I hope that tube proves to be a gud-un, I will never need it and you do have a soft spot for DM63s. After all that clever design replacing the special Tek IC with TTL it would be a cop out to put up with a low tube.
Thanks once again, it was a smashing day.
I leaned on the DM63 which was also on a soak run whilst straightening out the Z connector on the back. Tingles! Oops, 117v to earth! No earth continuity in the mains lead.
Now I have had this before with unusual Tek mains plugs. The spring in the socket eases with use. It takes a slight crush of the rubber moulded plug-in to restore a contact.
I hope that tube proves to be a gud-un, I will never need it and you do have a soft spot for DM63s. After all that clever design replacing the special Tek IC with TTL it would be a cop out to put up with a low tube.
Thanks once again, it was a smashing day.
Boater Sam.
