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SX-115 signals lower on USB than LSB

 
Edited

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Twenty-six years ago I collected the components for a classic Hallicrafters station. ?The HT-33A amplifier was sold before I moved cross-country in 2020 (just too heavy) but I finally got around to putting the station together a few weeks ago. ?The SX-88, SX-115 and HT-32B are all original - and with just cleaning the switches/pots and checking the tubes, work great. ?The HT-32B is putting out 90 watts, and with a Turner 350D HI mic, gets good audio reports.

The only issue is USB signals on the SX-115 are noticeably weaker than on LSB by about 3 S-units. ?Before I start digging in, has anyone on the list experienced a similar issue and knows how to resolve?

Thanks to all and Happy Holidays,
de Norm - WA3KEY
 
Edited

Beautiful Station... 73 WA3GIN


On Fri, Dec 20, 2024 at 3:27?PM Norm Drechsel via <norm=[email protected]> wrote:
Twenty-six years ago I collected the components for a classic Hallicrafters station.? The HT-33A amplifier was sold before I moved cross-country in 2020 (just too heavy) but I finally got around to putting the station together a few weeks ago.? The SX-88, SX-115 and HT-32B are all original - and with just cleaning the switches/pots and checking the tubes, work great.? The HT-32B is putting out 90 watts, and with a Turner 350D HI mic, gets good audio reports.

The only issue is USB signals on the SX-115 are noticeably weaker than on LSB by about 3 S-units.? Before I start digging in, has anyone on the list experienced a similar issue and knows how to resolve?

Thanks to all and Happy Holidays,
de Norm - WA3KEY
 
Edited

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Possibly alignment of 1055-KC Third Conversion Oscillator or V10 weak.

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Von: [email protected] <[email protected]> Im Auftrag von Norm Drechsel
Gesendet: Freitag, 20. Dezember 2024 21:08
An: [email protected]
Betreff: [HallicraftersRadios] SX-115 signals lower on USB than LSB

?

Twenty-six years ago I collected the components for a classic Hallicrafters station. ?The HT-33A amplifier was sold before I moved cross-country in 2020 (just too heavy) but I finally got around to putting the station together a few weeks ago. ?The SX-88, SX-115 and HT-32B are all original - and with just cleaning the switches/pots and checking the tubes, work great. ?The HT-32B is putting out 90 watts, and with a Turner 350D HI mic, gets good audio reports.

?

The only issue is USB signals on the SX-115 are noticeably weaker than on LSB by about 3 S-units. ?Before I start digging in, has anyone on the list experienced a similar issue and knows how to resolve?

?

Thanks to all and Happy Holidays,

de Norm - WA3KEY

?

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