04-02-2013, 09:43 PM
On the Nostalgia Air diagram it shows a decimal but it's after the 8 and not before it, so it reads as 8 ma or .008 amps, but it does show the 255 volts on the second detector's plate.
http://www.nostalgiaair.org/PagesByModel...039984.pdf
The N.A schematic looks like it came out of Riders, either that or a Beitmans book, so one of these schematics has a printing error. Does the set still have a 25,000 ohm resistor between the B+ line and the primary of the interstage transformer? If this is a weird interstage transformer it may be worth looking into the solid state substitute that they had published in the AWA Old Timer's bullitin.
Regards
Arran
http://www.nostalgiaair.org/PagesByModel...039984.pdf
The N.A schematic looks like it came out of Riders, either that or a Beitmans book, so one of these schematics has a printing error. Does the set still have a 25,000 ohm resistor between the B+ line and the primary of the interstage transformer? If this is a weird interstage transformer it may be worth looking into the solid state substitute that they had published in the AWA Old Timer's bullitin.
Regards
Arran
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