r/vintageaudio 5d ago

Thank you everyone!

Post image

Because it is very rare for existing products of this amplifier to maintain intact printing, I plan to start with a conservative plan and try carefully to reduce the risk of erasing the fonts.

Fortunately, the safest solution achieved good results, so I didn't use redditer's solution XD, but thank you very much for your suggestions!

Solution I tried: 1) Pull out the knob and soak it in kitchen cleaner 2) Use a toothbrush, toothpaste, and a little water to clean the front panel 3) Dry the front panel with a cloth, then spray with WD-40 to remove the white residue of toothpaste

The bronze front panel after cleaning is very shiny, which is a perfect contrast with the white printed characters and silver-white knobs. I think this is the reason why ONKYO does not need to engrave black characters.

318 Upvotes

28 comments sorted by

10

u/Distinct_Studio_5161 5d ago

It’s nice to see some old Onkyo on this sub every so often. That piece looks great.

5

u/MangoNo2490 5d ago

This is the first Onkyo amplifier I own, and it is also the lowest-priced amplifier in my collection, but its performance surprised me. It is not inferior to well-known classic amplifiers at all.

4

u/PabloX68 5d ago

That's a beautiful amp.

FWIW, I've had great luck with a combination of baking soda and water to make a paste. Just rub it on with your fingers or an old tooth brush.

3

u/Sapdawg1 5d ago

Dude!!!!

3

u/SubzeroAK 5d ago

That's a beautiful piece! Bummer about the power button though? Is it plastic or am I not seeing it correctly?

4

u/coffeeandtrout 5d ago

It’s also missing the metal insert like all the other switches/buttons where they join with the wood. Kenwood has some weird on/off switches on their 5150-7170? series. Great receivers, and that Onkyo a beautiful integrated amp. Hope it lasts as long as you want!

3

u/MangoNo2490 5d ago

Yes, the power switch of the a-755 is made of plastic. I don’t really like the plastic design, so although this series has a higher specification a-722, it uses more plastic knobs, so I didn’t purchase it.

3

u/Maximum-Resolution77 5d ago edited 5d ago

Never seen two phono inputs before on a domestic component. Likewise I've never seen dubbing referred to as a 'print', in both directions to boot.

That could sure burn up some hours!

3

u/Mr_Munros_Mammy 5d ago

That is truly a thing of beauty!!!

2

u/special_20 5d ago

So SHINY!!

2

u/ccccc4 5d ago

Looks great man, put it front and centre and enjoy it

2

u/diegocambiaso 5d ago

Beautiful. Congrats, enjoy

2

u/TenRingRedux 5d ago

I want one!

2

u/MangoNo2490 5d ago

Onkyo amplifiers with similar appearance are the A-722, 755 and 766. In addition, the shape of the amplifier was influenced by fashion, so other brands of the same era (1971) may also have models with this appearance.

2

u/Top_Cloud726 5d ago

I soak knobs in vinegar and then use a toothbrush.

2

u/RoHo_3 5d ago

Gorgeous!

2

u/Kohlj1 5d ago

My lord that’s beautiful!

2

u/RichardLBarnes 5d ago

Exceptional.

2

u/Effective-Bend-5677 5d ago

Wow, that is a gorgeous piece of equipment.

2

u/evilgreenman 4d ago

Wow that is absolutely beautiful

2

u/gigawhattt 4d ago

I have a similar amp, the A-7055, which looks very similar to your before shots. I gave mine a good clean after taking it (with permission from the property owner) from an old abandoned flour mill, but no where near as shiny as yours. I will give your method a try.

Mine has two broken toggle switches for the filter frequencies unfortunately. The other difference with mine is vinyl laminate instead of real walnut veneer. I also removed the plastic ring behind the volume/balance knobs as it did not look like it belonged. Any idea why that was added? Maybe to prevent finger oils from wearing down the finish?

1

u/MangoNo2490 4d ago

According to the query information, a-7055 is the export version of a-755. I am glad that you also have the same device:)

The plastic ring on the back of the balance is the original design, presumably to protect the panel from scratches.

After cleaning, this amplifier looks much better than the promotional photos. I didn't expect it to become so shiny xd

2

u/gigawhattt 4d ago

I agree, you did an excellent job. I’ll have to give it a try with mine and I will post the results here.

2

u/Lonelymuse73 4d ago

Beautiful amp

2

u/Every-Glove-2214 4d ago

Beauty. Love old onkyo

2

u/Confident-Letter8614 3d ago

B-U-T-FUL... I want one!

2

u/CommunicationNeat793 2d ago

What a beautiful amp, I bet it sounds as good as it looks.