04-05-2020, 07:54 PM
Thanks guys 
More progress this afternoon - after a lot of fussing, the tuning drive cord was replaced. It proved very difficult to get the spring over the hook on the tuning cap drum. A glutton for punishment, I wasn't happy with the tension on the first attempt, so took it off, adjusted the cord length and went through the frustration for a second time. The set has tuning again with a good "feel" and no slipping.
After that, I traced out the power supply circuit. It is a pretty standard, with a cap straight off the rectifier, and another on the other side of the field coil. The Candohm forms the bias network on the return side of the circuit. Now I know which of the replacement caps are doing which task.
Cheers
Ed
More progress this afternoon - after a lot of fussing, the tuning drive cord was replaced. It proved very difficult to get the spring over the hook on the tuning cap drum. A glutton for punishment, I wasn't happy with the tension on the first attempt, so took it off, adjusted the cord length and went through the frustration for a second time. The set has tuning again with a good "feel" and no slipping.
After that, I traced out the power supply circuit. It is a pretty standard, with a cap straight off the rectifier, and another on the other side of the field coil. The Candohm forms the bias network on the return side of the circuit. Now I know which of the replacement caps are doing which task.
Cheers
Ed
I don't hold with furniture that talks.
