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SX-28 NOTES - radioblvd.com
https://www.radioblvd.com/SX28Notes.html
Audio Output Impedance - Hallicrafters' speakers require 5000 ohm Z audio, which the SX-28 provides, but if you want to use some other speaker you would probably opt for the 500 ohm Z output with a matching transformer. The Super-Pro is …
Hallicrafters SX-28 - Ohio University
https://people.ohio.edu/postr/bapix/SX28.htm
Hallicrafters SX-28 . Super Skyrider logo. The SX-28 is arguably Hallicrafters' finest pre-war set (short of the specialty-market dual diversity DD-1). It is a very well designed and engineered single conversion Broadcast and HF receiver. It uses …
eHam.net
https://www.eham.net/reviews/view-product?id=2367
The SX-28 uses a 500 ohm audio output so I recommend getting the Hallicrafters/Jensen PM-23 speaker with it. I operate AM exclusively and am amazed by the performance of this receiver. Definitely my favorite. If you find one you may want to invest a bit of time and money to recap it with Sprague "orange drops". It's not an easy proposition and ...
Hallicrafters SX-28 Restoration - Thomas Bonomo K6AD
https://californiahistoricalradio.com/restorations/hallicrafters-sx-28-restoration/
The SX-28 is undoubtedly Hallicrafters’ finest pre-World War II radio (excluding Hallicrafter’s special dual diversity DD-1). This radio came from the era in which the “boatanchor” moniker was born. The SX-28 is a well engineered and heavy single conversion broadcast and HF receiver offering coverage from .55 to 42 MHz in 6 bands.
Hallicrafters SX-28 - Wikipedia
https://en.wikipedia.org/wiki/Hallicrafters_SX-28
The SX-28 included an Amplified AVC, a Lamb Noise Silencer, Calibrated bandspread, and Push-Pull audio output. The SX-28 was known for its high fidelity audio together with high sensitivity, stability and selectivity, and good purchase value. U.S. President Harry S. Truman kept an SX-28 behind his desk in the Oval Office. The SX-28 saw use by ...
Hallicrafters SX-28A Receiver - W1VD
http://www.w1vd.com/HallicraftersSX-28A.html
Hallicrafters SX-28A. Performance Test. Notes: Maximum i-f bandwidth measured about 14 kHz @ -6 dB on this receiver. Before running the audio frequency response and audio distortion test the tone control was adjusted for flat response with the bass switch "in". AM distortion numbers show the somewhat typical increase at lower audio frequencies ...
SX-28 - Most Unusual!!
http://amfone.net/Amforum/index.php?topic=32855.0
Todd, I believe the SX-28/FCC version had a single ended audio for the same reason as the SX-17/FCC; less power drain in mobile use. Altho the majority were used in buildings one model that could be used wherever needed makes sense.
1940 Hallicrafters SX-28 "Super Skyrider" Communications ...
https://www.radio-antiks.com/IndexRadio-Antiks_Hallicrafters_SX-28.htm
In a Nutshell Very early (Oct. 29, 1940) pre-WWII version of the SX-28, completely restored and working fine. Introduction: If you don't already know everything about this "Super Skyrider" cult communications receiver, please read the extensive documentation 'Hallicrafters SX-28 "A Pre-war Masterpiece"' by Henry Rogers, the director of the Western Historic Radio Museum, Radio …
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