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#1
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- exray - wrote:
Alignment...or if this is happening only on BCB it may be a combination of alignment and inferior antenna. GL, Bill I guess I should have also mentioned the possibility of bad rf coils since thats not all that uncommon. You'll find out during alignment if there's any bad ones. GL |
#2
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Many of these old receivers have been zapped by a lightning charge from
a nearby strike...It`s not at all uncommom to find an open RF coil in the front end of the receiver..Usually this occurs on the band that the rec is set on.Like BC band...If all bands show this condition it could be a switch problem,or something else in RF section...GL W4PQW |
#3
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![]() You're adding a capacitor between ground and part of the tube when you put your finger there. If the front end were tuned properly, this would be detuning it. But it seems like it's improving the tuning, which makes me think the tuning is way out. Look for open coils (easy to check with a continuity tester), and bad ceramic capacitors in that stage. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#4
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You have a missing slug in one or more of the RF coils.
-- Regards, Gary... "Scott Dorsey" wrote in message ... You're adding a capacitor between ground and part of the tube when you put your finger there. If the front end were tuned properly, this would be detuning it. But it seems like it's improving the tuning, which makes me think the tuning is way out. Look for open coils (easy to check with a continuity tester), and bad ceramic capacitors in that stage. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#5
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In article , gkb wrote:
You have a missing slug in one or more of the RF coils. Oh, that's a good one. Yeah, I've seen that before too. Definitely worth checking. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#6
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Yeah I don't get the missing slug. There are no slugs. So I guess
they're all missing. |
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