ender@SU-ISL (05/11/85)
I have an antique Hallicrafters SX-28 `Super Skyrider' general coverage short-wave receiver that I used play with when I was in high school. It is a good receiver and since it won't cost me much, I would like to have it operating again, but I seem to have lost my manual and I do not remember which tubes it uses. I recall seeing a list of its tubes in an ancient CQ (QST?) or an old ARRL Handbook. Can an old-timer help me out? Thanks much in advance...
parnass@ihu1h.UUCP (Bob Parnass, AJ9S) (05/14/85)
x
our USENET backbone machine (ihnp4) has been erratic lately, so please
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Hallicrafters SX28 tube layout:
SX28 Super Skyrider TOP VIEW
Rear Panel
----------------------------------------------
power 6AB7 6H6
xfmr
6SK7 6AB7
5Z3 6SA7 6B8
6V6GT 6SA7 6L7
6V6GT 6SC7 6J5 6B8 6SK7
----------------------------------------------
Front Panel
_________________________________________
| Hallicrafters SX28 |
|_______|__________________________________|
| Tube | Function |
|_______|__________________________________|
| 6AB7 | RF amp (1) |
| 6SK7 | RF amp (2) |
| 6SA7 | Mixer |
| 6SA7 | HF Oscillator |
| 6L7 | IF Amplifier (1), Noise Limiter|
| 6SK7 | IF Amplifier (2) |
| 6B8 | 2nd Detector, S-Meter tube |
| 6B8 | AVC Amplifier |
| 6AB7 | Noise Amplifier |
| 6H6 | Noise Rectifier |
| 6J5 | Beat Oscillator |
| 6SC7 | 1st Audio Amplifier |
| 6V6GT| P.P. Audio Amplifier |
| 6V6GT| P.P. Audio Amplifier |
| 5Z3 | Rectifier |
|_______|__________________________________|
> I have an antique Hallicrafters SX-28 `Super Skyrider' general
> coverage short-wave receiver that I used play with when I was in high
> school. It is a good receiver and since it won't cost me much, I would
> like to have it operating again, but I seem to have lost my manual and
> I do not remember which tubes it uses. I recall seeing a list of its
> tubes in an ancient CQ (QST?) or an old ARRL Handbook. Can an old-timer
> help me out? Thanks much in advance...
--
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Bob Parnass, Bell Telephone Laboratories - ihnp4!ihu1h!parnass - (312)979-5414