Twin GE 3-5268s

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Tinman

Member (SA)
Ok, so I picked these boxes up last year and finally got around to working on them in December.
Since they're 3 pieces, I decided to start with the speakers which I thought would be fairly quick and easy, my mistake.
I had already taken one of them apart right after receiving it because it was making noise.
I found the woofer had broken its bottom plastic mount, slipped out of the metal retainers and was hanging by it's capacitor and other wires.
Luckily it didn't damage the cone or surround but it did pull the piezo speaker apart so I figured I swap those out with some 5/8" soft domes.
Unfortunately the place I was ordering from didn't have the 5/8" in stock.
At that time, I figured I might as well replace all four piezo speakers so I ordered four 3/4".
Upon taking another speaker apart, I found the midrange speaker slipped out of its retainers and the cone was wrinkled beyond repair.
In no way was I expecting to replace any of the eight white speakers but ended up ordering two 2" replacements (cha-ching $$$).

Turning to the enclosures, I found all four of the pressed board stiffening pieces had cracked glue joints where they were supposed to be adhered to the plastic sides.
I planned on removing them anyway so that wasn't a big deal.
The grilles were all pretty beat up with dents and chipped/missing paint.
I removed them, hammered out the dents, scuffed them up and painted all four satin black.
One set of speakers had wires that were pretty tattered and missing their plugs so I replaced both wires.

Back to the white speakers.
The four Onkyo woofers and two of the original midranges were fairly yellowed which I'm not a fan of.
Since I couldn't find any white 2" midrange speakers, I figured I'd have to color those some how anyway so I wanted to brighten the old white ones up.
Instead of using paint, I thought I'd try ink since I could thin it out and there wouldn't be a thick layer on the cones that might flake off at some point.
After some researching, I ended up buying white India ink at a craft store.
I applied it very thinly with a brush on all of the speakers.
The white speakers took two coats while the new 2" black speakers only took a couple more to cover.
The two new midranges I painted up to the edge of the cone so they'd look similar to the woofers.
The old midranges don't have cloth, rubber or foam surrounds so they're white to the very edges.
I knew I didn't have to be perfect since looking through the mesh grilles made it difficult to see any small variations in color.
The new midranges came with shiny black dust covers so I used a silver metallic sharpie to color them.
I was going to use aluminum paint but the marker gave me a lot more control, was cleaner and all around easier to use.
Again, behind the grille, it's very hard to see and I doubt most people would ever notice a difference from the others.

After all of the parts were washed and cleaned, I installed the pressed boards back into position and glued them in with clear Gorilla glue (very similar to E6000 but less smelly).
This stuff is excellent and I suggest anyone refurbishing boxes to have a tube on hand, it's extremely strong but usually can be removed if needed.
A white piece of fiber insulation sits behind the board.
After installing the grilles, I installed the speakers back gluing the new ones in where I needed to.
I wired everything in using new film capacitors.
All four of these speakers sound great.

Unfortunately I didn't take pictures as I was doing the speakers so I took one apart and snapped a few.
This is the one where the woofer broke through the bottom, has the new 2" midrange and the original wire.

You can see the new glue wherever the board contacts the plastic.
PXL_20220126_201040888.jpg

Here's a closeup of the glue joint.
PXL_20220126_201058809.jpg

I've never used the Audyn caps before but I was short two 4.7s so I ordered them with all of the speakers.
This woofer won't be dropping out of place again and there are definitely no vibrations.
PXL_20220126_201219163.jpg

Here's a pic showing the finished speakers.
The new midrange is on top.
(The speakers look a little odd because of the camera angle)
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floyd

Boomus Fidelis
fantastic not much where I can add to that . that is a nice Boombox though and the work you did to it made it even nicer.
 
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Tinman

Member (SA)
As far as the main part of the boxes, they both had their various problems as all of these boxes do.
One of them had an annoying volume pot problem that can be read about here: https://boomboxery.com/forum/threads/ge-volume-potentiometer.31794/#post-388952
It also had a take up reel clutch that was too loose and almost ate my 3Khz test tape.
I ended up replacing the felt clutch discs on the take up reels of both boxes.
I did my ridiculous tear down so I can wash absolutely everything I possibly can.
I'm anal about getting all of the boxes I work on spotless.

The belts gave me a headache.
These take four and the scy5.7 I installed that drives the ff and rew ended up being too loose.
I didn't realize it until I had the first one back together and "done".
I tried an sbo5.2 that I had which was too tight and wouldn't let ff engage so I ended up ordering and installing sbo5.4 belts which work perfectly.
Of course, I deoxed all pots and sliders.
I vacuumed and cleaned all of the boards.
In the end, I got them back together and both are working and sounding great.

Here's a shot of my new felt clutch pad installed and the old tan one below it.
PXL_20220118_205746113.jpg

Here are some various shots while this one was in pieces.
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Everything installed onto the front panel.
PXL_20211221_183544002.jpg

Here's a shot of the big ferrite antenna that makes these part of the "Superadio" family.
PXL_20211221_183714813.jpg

Ready to be reassembled, thank God, lol.
PXL_20211221_184050679.jpg
 

Tinman

Member (SA)
Here are some finished shots.

First, here's a shot of the hole I drilled to access the motor speed control.
It almost looks like a factory hole the way it has the lip around it, lol.
You can see the inside view of it in the previous picture.
PXL_20220131_212517288.jpg

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floyd

Boomus Fidelis
drilling that hole is a great idea I've done things like that before these are beautiful Boombox though I wouldn't mind having one myself.
 

Tinman

Member (SA)
drilling that hole is a great idea I've done things like that before these are beautiful Boombox though I wouldn't mind having one myself.
Thanks.
These are the only 3 piecers I've ever owned and I'm enjoying them, they have a really nice sound.
They were definitely a lot of work but in the end it was worth it.
 

Reli

Boomus Fidelis
Very nice work! I agree, these models sound great, with a broad frequency range and very detailed. I added some Rockmat to the interior walls and it deepened the bass by reducing the mid-bass resonance produced by the plastic walls. One flaw this model has is the speaker output jacks are fragile. If they get hit they will develop contact problems. Also one of the wires leading to the midrange speaker uses some kind of flex joint that can easily become detached.
 

Tinman

Member (SA)
Thanks guys.
Yep Reli, I had to resolder the speaker jacks on both boxes.
They really should've been mounted better/stronger than they are knowing that people would be plugging and unplugging them.
The joint is the capacitor leg is crimped onto a piece of wire soldered onto the midrange neg.
Apparently the cap leg wasn't long enough to reach.
I found one of my pre demolition pictures and you can see it.
The cap was really close to shorting out on the positive of the woofer.
Also, check out how tight the ground wire to the piezo is, lol.PXL_20211108_231100375.jpg
 

Radio raheem

Requiem Æternam
I would rather one of these than an m70 all day long, at least they look the part....interesting the woofer states it's made by onkyo....that is one of the amps i had that was trashed in the post
 
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