07-08-2011, 07:48 PM
This is a really nice set, very sensitive and one of my vavorites. I have a couple of them. The tubes are really fragile, so you want to make sure you get the power supply in order before powering up the set.
You can visit nostalgia air for tube data and a schematic for your set. With a simple digital meter you can test the continuity of the filaments of your tubes to see if any are bad.
Chances are really good that if the filament is good and the glass is not broken, the tube is good. If the 117Z3 is bad, you can substitute a silicon diode and an additional 500 ohm or so series resistor to tame the power supply down. You need to protect the filament string at all costs.
The capacitors will all have to be changed. Every single one of 'em miss one, and it'll haunt you forever like one hiding inside the first IF Can did me ; and probably most if not all the resistors, and really they're cheap enough.
We're here if you have more questions
You can visit nostalgia air for tube data and a schematic for your set. With a simple digital meter you can test the continuity of the filaments of your tubes to see if any are bad.
Chances are really good that if the filament is good and the glass is not broken, the tube is good. If the 117Z3 is bad, you can substitute a silicon diode and an additional 500 ohm or so series resistor to tame the power supply down. You need to protect the filament string at all costs.
The capacitors will all have to be changed. Every single one of 'em miss one, and it'll haunt you forever like one hiding inside the first IF Can did me ; and probably most if not all the resistors, and really they're cheap enough.
We're here if you have more questions
