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Sky Traveler S-29

Sky Traveler S-29; Hallicrafters, The; (ID = 18389) Amateur-R
 
Sky Traveler S-29; Hallicrafters, The; (ID = 18390) Amateur-R
Sky Traveler S-29; Hallicrafters, The; (ID = 159986) Amateur-R Sky Traveler S-29; Hallicrafters, The; (ID = 159987) Amateur-R
Sky Traveler S-29; Hallicrafters, The; (ID = 159988) Amateur-R Sky Traveler S-29; Hallicrafters, The; (ID = 159989) Amateur-R
Sky Traveler S-29; Hallicrafters, The; (ID = 159990) Amateur-R Sky Traveler S-29; Hallicrafters, The; (ID = 1007094) Amateur-R
Sky Traveler S-29; Hallicrafters, The; (ID = 1007095) Amateur-R Sky Traveler S-29; Hallicrafters, The; (ID = 1007096) Amateur-R
Sky Traveler S-29; Hallicrafters, The; (ID = 1050146) Amateur-R
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Sky Traveler S-29; Hallicrafters, The; (ID = 159986) Amateur-R
Hallicrafters, The;: Sky Traveler S-29 [Amateur-R] ID = 159986 448x400
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For model Sky Traveler S-29, Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX:
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Country:  United States of America (USA)
Manufacturer / Brand:  Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX
Year: 1940–1943 Category: Amateur-Receiver (amateur bands, may include broadcast bands)
Valves / Tubes 9: 1T4 1R5 1P5GT 1P5GT 1H5GT 1G4GT 1G4GT 3Q5GT 50Y6
Main principle Superhet with RF-stage; ZF/IF 455 kHz
Wave bands Wave Bands given in the notes.
Details
Power type and voltage Line / Batteries (any type) / 110; 6 & 90 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Radiomuseum.org Model: Sky Traveler S-29 - Hallicrafters, The; Chicago,
Material Metal case
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 7 x 8.5 x 13.2 inch / 178 x 216 x 335 mm
Notes Coverage 0.54 - 30.5 MHz in four ranges, bandspread in 80/40/20/10m HAM bands; built in telescopic antenna. 10.000 built during WWII.
Price in first year of sale 60.00 $
External source of data E. Erb 3-907007-36-0
Source of data Communications Receivers
Circuit diagram reference Rider's Perpetual, Volume 12 = ca. 1941 and before
Mentioned in ARRL Handbook 1942 Catalog Section
Literature/Schematics (1) Radio Retailing (Radio & Television R.) (April 1941.)
Documents regarding this model
  Manual for the Hallicrafters S-29, made by Hallicrafters. 1030 KB


All listed radios etc. from Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX
Here you find 822 models, 448 with images and 396 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Hallicrafters, The;: Sky Traveler S-29
Threads: 1 | Posts: 4
Hits: 1547     Replies: 3
hallicraft: S-29; Sky Traveler
Frank Pascale
04.Oct.12
  1

I have restored a Hallicrafters S-29, but sensitivity appears to be less than what I'd expect on the broadcast band.  Making some signal generator measurments (on any band), it takes about 3000 microvolts at the antenna to ground terminal to get a reasonable signal level, and at 1000 microvolts, it is just "hearable".  A signal into the 455kc chain gives a good output at about 100 - 300 microvolts.

I have aligned it per manual instructions (I believe), and the voltages at the filaments and plates of the 1T4 and 1R5 all seem within bounds.

I realize it would be good to know what to expect as a sensitivity for, say, the broadcast band of this radio.  I have not been able to find this figure anywhere. 

Can anyone help guide me? 

Best Regards,

Frank Pascale

Long Island, New York

Emilio Ciardiello
04.Oct.12
  2

The problem may be caused by a wrong AVC bias on the RF stage. Try to check R1 for open.

Emilio

Frank Pascale
05.Oct.12
  3

Emilio:

Thank you for your guidance.  This will be a good weekend investigation!

Best Regards,

Frank

Frank Pascale
25.Oct.12
  4

Emilio:

R1 turned out to be about 1.7 meg and the schematic called for 2.0 meg, so it wasn't open.  But you set me on a course to rule out AVC, as the voltage seemed to vary as the stronger stations were tuned in.  As I was looking there, I became troubled by a free wire I had disconnected from the metal cabinet when I removed it from its case.  Looking closely at the pictures I had taken before disassembly, this wire went directly to the metal cabinet, and was actually "returned" to the chassis by a 0.05 capacitor.  Now it was floating.  It connected to the low end of the bank of coils in the RF stage.  Grounding it to the chassis (it is being operated on an isolation transformer), returned the sensitivity (about 30 to 100 microvolts for good quieting).  Thanks for making me look closely at this.

Best Regards,

 

Frank

 
Hallicrafters, The;: Sky Traveler S-29
End of forum contributions about this model

  
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