Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Transistor Radio

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #1  
Old 04-02-2016, 04:41 PM
Captainclock Captainclock is offline
Banned
 
Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
GE Model 3-5253A Boombox

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
Attached Images
File Type: jpg DSCN2779.jpg (101.5 KB, 85 views)
File Type: jpg DSCN2780.jpg (82.5 KB, 41 views)
File Type: jpg DSCN2777.jpg (63.1 KB, 49 views)
Reply With Quote
  #2  
Old 04-02-2016, 06:19 PM
dishdude's Avatar
dishdude dishdude is offline
VideoKarma Member
 
Join Date: Feb 2014
Posts: 817
That's not a Superadio, just a run of the mill boombox from the mid 80's. I'd say '84-'86.
Reply With Quote
  #3  
Old 04-02-2016, 06:36 PM
Captainclock Captainclock is offline
Banned
 
Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
Quote:
Originally Posted by dishdude View Post
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.

Last edited by Captainclock; 04-03-2016 at 03:31 PM.
Reply With Quote
  #4  
Old 04-05-2016, 03:19 AM
radiodayz's Avatar
radiodayz radiodayz is offline
radiodayz
 
Join Date: May 2010
Location: Seattle WA USA
Posts: 120
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.
__________________
I have one of those around here, somewhere
Reply With Quote
  #5  
Old 04-12-2016, 08:15 AM
rpm1200's Avatar
rpm1200 rpm1200 is offline
VideoKarma Member
 
Join Date: Jan 2006
Location: Rochester, NY
Posts: 247
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
Reply With Quote
Audiokarma
  #6  
Old 04-12-2016, 12:24 PM
Findm-Keepm's Avatar
Findm-Keepm Findm-Keepm is offline
Followin' the Rules...
 
Join Date: Jun 2007
Posts: 2,832
Quote:
Originally Posted by Captainclock View Post
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)....
__________________
Brian
USN RET (Avionics / Cal)
CET- Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"

When fuses go to work, they quit!
Reply With Quote
  #7  
Old 04-12-2016, 01:10 PM
Captainclock Captainclock is offline
Banned
 
Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
Quote:
Originally Posted by rpm1200 View Post
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.
Reply With Quote
  #8  
Old 04-12-2016, 01:14 PM
Captainclock Captainclock is offline
Banned
 
Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
Quote:
Originally Posted by Findm-Keepm View Post
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.
Reply With Quote
  #9  
Old 04-12-2016, 01:30 PM
centralradio centralradio is offline
VideoKarma Member
 
Join Date: Feb 2014
Posts: 1,097
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.
Reply With Quote
  #10  
Old 04-12-2016, 01:59 PM
Captainclock Captainclock is offline
Banned
 
Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
Quote:
Originally Posted by centralradio View Post
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.
Reply With Quote
Audiokarma
  #11  
Old 04-12-2016, 03:54 PM
Findm-Keepm's Avatar
Findm-Keepm Findm-Keepm is offline
Followin' the Rules...
 
Join Date: Jun 2007
Posts: 2,832
Quote:
Originally Posted by Captainclock View Post
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,
__________________
Brian
USN RET (Avionics / Cal)
CET- Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"

When fuses go to work, they quit!
Reply With Quote
  #12  
Old 04-12-2016, 07:08 PM
Captainclock Captainclock is offline
Banned
 
Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
Quote:
Originally Posted by Findm-Keepm View Post
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.
Reply With Quote
  #13  
Old 04-13-2016, 11:56 AM
rpm1200's Avatar
rpm1200 rpm1200 is offline
VideoKarma Member
 
Join Date: Jan 2006
Location: Rochester, NY
Posts: 247
Quote:
Originally Posted by Captainclock View Post
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.
Reply With Quote
  #14  
Old 04-13-2016, 02:39 PM
Captainclock Captainclock is offline
Banned
 
Join Date: Dec 2013
Location: Elkhart, Indiana
Posts: 1,189
Quote:
Originally Posted by rpm1200 View Post
No, the second digit of the date code is the last digit of the year. 5429 --> 1984.
Sorry I misread what was being said.
Reply With Quote
  #15  
Old 04-23-2016, 11:55 AM
pac.attack76's Avatar
pac.attack76 pac.attack76 is offline
Stuck in the past!
 
Join Date: Mar 2013
Location: Arkansas
Posts: 1,209
Oh man, I've got two of these.
__________________
cedmagic.com
Reply With Quote
Audiokarma
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:05 PM.



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