Videokarma.org TV - Video - Vintage Television & Radio Forums

Videokarma.org TV - Video - Vintage Television & Radio Forums (http://www.videokarma.org/index.php)
-   Transistor Radio (http://www.videokarma.org/forumdisplay.php?f=79)
-   -   GE Model 3-5253A Boombox (http://www.videokarma.org/showthread.php?t=266681)

Captainclock 04-02-2016 04:41 PM

GE Model 3-5253A Boombox
 
3 Attachment(s)
Hello Everyone today when I was at work I found sitting on the shelf on the floor an early 1980s GE AM/FM/FM Stereo/ Cassette Boombox Model 3-5253A which I'm thinking might possibly be one of the Cassette player equipped Superadios but not sure. I have some pictures of it posted below. The reason why I suspect it might be a Superadio (even though it doesn't say it on the radio anywhere) is because I did see the Superadio chip in the tuner section of the radio, and it does have an extremely sensitive tuner and it has a switch on the back marked "Oscillator" and then its marked "A" and "B" and then on the top it has a switch marked "Stereo Accent" with an "on" and "off" position, which sounds like something that would of been on the Superadios.

Any assistance with identifying this Boombox and its approximate age would be appreciated.

Thanks,

Levi

dishdude 04-02-2016 06:19 PM

That's not a Superadio, just a run of the mill boombox from the mid 80's. I'd say '84-'86.

Captainclock 04-02-2016 06:36 PM

Quote:

Originally Posted by dishdude (Post 3159595)
That's not a Superadio, just a run of the mill boombox from the mid 80's. I'd say '84-'86.

Its not mid 1980s because it has the unpolarized cord, which was gone by 1985, this Boombox has to be early 1980s and its not just a "run of the mill" Boombox because it has features on it that wouldn't be on a normal Boombox, plus the Tuner is extremely sensitive which most boomboxes from that time period that I've worked with have at best mediocre tuners that can barely pick up radio stations from 30-50 miles away on the FM Dial let alone anything on the AM Band, and this Boombox picks up 3 radio stations that are between 30-60 miles from me like they're in my back yard.

radiodayz 04-05-2016 03:19 AM

There are several "Superadio boomboxes," (same AM-FM tuner section as the Superadios), but I don't believe yours is one of them, CC. However, a number of GE boomboxes from the 80s had excellent AM reception. I still have a mono boombox Superadio; I gave another one away to a friend.

rpm1200 04-12-2016 08:15 AM

To determine the date of manufacture of a 70's-80's GE product, look for the Date Code sticker in the battery compartment. It will have a 4-digit code; the second digit is the last digit of the year. You know it's made in the 80's so if the second digit is 3 (for example) the year would be 1983.

Source: http://www.antiqueradios.com/forums/...p?f=4&t=179177

Findm-Keepm 04-12-2016 12:24 PM

Quote:

Originally Posted by Captainclock (Post 3159586)
The reason why I suspect it might be a Superadio (even though it doesn't say it on the radio anywhere) is because I did see the Superadio chip in the tuner section of the radio

Just what is the "superadio chip?"

We worked GE Audio warranty from 1979 to about 1990. I saw TONs of Superadios - portables, clock radios, and yes, the one boombox (which also had the VHF TV bands on it, the dead giveaway). Never saw a "Superadio Chip" in any of them - just the early Murata narrow-band ceramic filters, an additional IF stage, or the GE EA33X367 IC (a Sanyo LA1201 variant GE used).

I still have the GE Audio parts guide, with the cross from GE Audio part number to manufacturer number. Thomson expanded it to include VCR/TV, but ruined it by dumping all the older RSXXXX and EA stuff - they kept only the EW part numbers (which are also shared with GE/Hotpoint, a real pain, as they duplicated part numbers across both lines, without coordination between Thomson and GE/Hotpoint)....

Captainclock 04-12-2016 01:10 PM

Quote:

Originally Posted by rpm1200 (Post 3160310)
To determine the date of manufacture of a 70's-80's GE product, look for the Date Code sticker in the battery compartment. It will have a 4-digit code; the second digit is the last digit of the year. You know it's made in the 80's so if the second digit is 3 (for example) the year would be 1983.

Source: http://www.antiqueradios.com/forums/...p?f=4&t=179177

Well the date stamp is 5429 so it seems it might of been made in 1979, so a lot earlier than I thought it was.

Captainclock 04-12-2016 01:14 PM

Quote:

Originally Posted by Findm-Keepm (Post 3160324)
Just what is the "superadio chip?"

We worked GE Audio warranty from 1979 to about 1990. I saw TONs of Superadios - portables, clock radios, and yes, the one boombox (which also had the VHF TV bands on it, the dead giveaway). Never saw a "Superadio Chip" in any of them - just the early Murata narrow-band ceramic filters, an additional IF stage, or the GE EA33X367 IC (a Sanyo LA1201 variant GE used).

I still have the GE Audio parts guide, with the cross from GE Audio part number to manufacturer number. Thomson expanded it to include VCR/TV, but ruined it by dumping all the older RSXXXX and EA stuff - they kept only the EW part numbers (which are also shared with GE/Hotpoint, a real pain, as they duplicated part numbers across both lines, without coordination between Thomson and GE/Hotpoint)....

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.

centralradio 04-12-2016 01:30 PM

Not to skew off topic but I have a GE Clock Radio Model 7-4880A with direct radio freq entry which has great selectivity and sensitivity on both bands.

Captainclock 04-12-2016 01:59 PM

Quote:

Originally Posted by centralradio (Post 3160327)
Not to skew off topic but I have a GE Clock Radio Model 7-4880A with direct radio freq entry which has great selectivity and sensitivity on both bands.

I Know about that one, I used to have that one myself, but then the pushbuttons died (they were no longer responsive), so I had to get rid of it. :tears:

Findm-Keepm 04-12-2016 03:54 PM

Quote:

Originally Posted by Captainclock (Post 3160326)
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.

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,

Captainclock 04-12-2016 07:08 PM

Quote:

Originally Posted by Findm-Keepm (Post 3160334)
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,

Well go talk to some of the other guys who replied in this thread, NOT me, I was only going by what the others said in their posts on my threads concerning this and my GE "Fidelity I" clock radio which was where everyone on there said that they thought that maybe my "Fidelity I" clock radio might share the chipset in common with the Superadios but not necessarily any of the other circuitry that made the "superadios" what they were. That's all I'm saying.

rpm1200 04-13-2016 11:56 AM

Quote:

Originally Posted by Captainclock (Post 3160325)
Well the date stamp is 5429 so it seems it might of been made in 1979, so a lot earlier than I thought it was.

No, the second digit of the date code is the last digit of the year. 5429 --> 1984.

Captainclock 04-13-2016 02:39 PM

Quote:

Originally Posted by rpm1200 (Post 3160401)
No, the second digit of the date code is the last digit of the year. 5429 --> 1984.

Sorry I misread what was being said. :sigh:

pac.attack76 04-23-2016 11:55 AM

Oh man, I've got two of these.


All times are GMT -5. The time now is 08:32 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.