11-10-2014, 05:50 PM
Is the volume universally low across the bands? Or is it OK on one band and bad on another?
Your lack of volume might be due to
1) Bad RF 6K7G tube.
2) Bad RF transformers (9, 10 or 11). This would cause a band-depended effect.
3) Same - bad Ant. transformers.
4) Bad antenna?
5) Some bad/weak tubes. The fact that tubes glow and you have reception does not by itself mean they are all good.
Which tubes are new and which are not?
Alignment: page 4 in the Rider's manual for 37-620 which is on the Nostalgia Air has the alignment procedure (Adjustment they call it there).
PS. if you are serious about the hobby you need proper equipment. The way you do it is relying on some dumb luck and this may or may not work. This time it somewhat worked.
Your lack of volume might be due to
1) Bad RF 6K7G tube.
2) Bad RF transformers (9, 10 or 11). This would cause a band-depended effect.
3) Same - bad Ant. transformers.
4) Bad antenna?
5) Some bad/weak tubes. The fact that tubes glow and you have reception does not by itself mean they are all good.
Which tubes are new and which are not?
Alignment: page 4 in the Rider's manual for 37-620 which is on the Nostalgia Air has the alignment procedure (Adjustment they call it there).
PS. if you are serious about the hobby you need proper equipment. The way you do it is relying on some dumb luck and this may or may not work. This time it somewhat worked.
