Quote:
Originally Posted by Captainclock
The "Superadio Chip" that is being referred to here is a chip that contains the whole tuner except the front end, that's what everyone is referring to as a "Superadio Chip" and everyone on here seems to agree that they used that tuner chip on other higher end radio and boomboxes besides just the "Superadio" models.
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Picture? Sure to be a rare one, as GE used transistors/JFETS for the RF amp, and the LA1201 for the IF/Oscillator, with bandswitching either by mechanical switch or a transistor-based switching arrangement.
The LA1201 was in many other products from Sanyo/Fisher, GE, and even a cheapo Pioneer tuner I have. The variants included a Narrow Band variety (used in the superadio and the Pioneer tuner) and others with less performance. A look at an ECG or NTE manual and you'll see all the variants cross to the same (wideband) NTE/ECG part, hence the insistence by GE to use their EA33X367 - the narrow band was key to the Superadio. I can think of only a few times ever replacing the chip - most of the warranty stuff was open power transformers, open emitter caps in the audio (.47uF 16V Rubycon Electros) and the odd switch pad on the Superadio clock radios - the carbon soft touch switches would fail.
We did a booming business in the antenna arena - EA83X### part-numbered antenna rods. The GE line of 1978-79 "Silver/Gray" military-looking radios had some cheapo antennas that we must have replaced a dozen or more of - the Russell replacements were all too thin in diameter, so we had to use the GE antenna rods. In 1984, GE started rebadging Sanyo boomboxes, as Sanyo used mostly Fisher-branded stuff outside of Japan. We'd get the year's service lit, with GE labels applied over some of the cover pages - the preliminary data was all Sanyo, and a month later we'd get the final GE manual with the GE EA or EW part numbers instead of the 13/14/16 digit Sanyo part numbering. On some parts, we'd order from SFS and get them faster or cheaper than through GE - a pleasant benefit of having the preliminary service lit....
Cheers,