Evening all

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Hallsy

Member (SA)
Hi guys & gals, I'm a newbie here!

I like gadgets, tech, new projects, etc and recently got it into my head that I fancied modding a boom box (ipod holder instead of tape deck, maybe a DAB tuner, etc) - so found myself reading up on various boom boxes on Google, often leading me over to here or Stereo2go - so I thought I'd say Hi!!

So much so, that as I learn more about boxes I am actually keen on restoring a few myself, perhaps leaving the more intrusive mods for something a little less cared for!!

I was born in '82, so boom boxes of my era were nothing like the ones I am reading around on here - can't wait to have a big box booming in the kitchen or out in the garden this summer!

To dip my toe in the water I've just bought a Sharp GF9090 as a starter box!

Looking forward to the resto!!

Seems like there is a wealth of info on this site which will help me no end :)
 

Northerner

Boomus Fidelis
Welcome from the UK Hallsy! You find this a very cool and welcoming place to find loads of useful info and technical knowledge. You picked a great starter box...the 9090 has more power than it's relatively small size suggests plus it has really classic looks, so great choice :-)

What country are you from?
 

Hallsy

Member (SA)
Thanks Northerner!!

I'm from sunny Suffolk in the UK!

I was really keen on a GF9191, mainly because it looks better imo but had read that some think the 9090 sounds a bit better - so even if it is a bit on the small side it will at least make a great kitchen unit!!

Better than cranking my lounge system right up so that I can just about here it when cooking, lol!
 

Northerner

Boomus Fidelis
Ah the 9191...one of my most used boxes...my 9191 sounds better than the 9090 I sold tho. Got bigger and better boxes but I just love the 9191 for some reason. Both boxes are not uncommon in the UK but a 9191will always sell for a lot more than a 9090. Was your 9090 the bargain one sold on eBay earlier today for £25?
 

Hallsy

Member (SA)
Thanks k2j!

Yes Northerner - £25 plus royal fail's ransom!! Not sure it was a bargain, but seemed a fair price.

Initially I assumed the 9090 was an older version of the 9191, but can now see that it's a bit smaller. Would like to learn a bit more about the Sharp hierarchy - they have quite a few nice looking models!!
 

oldskool69

Moderator
Staff member
Welcome aboard! You'll find a wealth of knowledge here on the site and plenty of tips and tricks. :-)
 

Lasonic TRC-920

Moderator
Welcome to Boomboxery. Man, I love the GF-9090, great solid blaster! That's a great way to get started for sure!

I'll be looking for your threads on mod's, restorations or what ever!

:hi:
 

Northerner

Boomus Fidelis
Hallsy said:
Thanks k2j!

Yes Northerner - £25 plus royal fail's ransom!! Not sure it was a bargain, but seemed a fair price.

Initially I assumed the 9090 was an older version of the 9191, but can now see that it's a bit smaller. Would like to learn a bit more about the Sharp hierarchy - they have quite a few nice looking models!!
£25 is a bargain...when I sold my fully serviced but not mint one on eBay UK a few months ago there was a mad bidding war and it sold for £120! The moral of this is don't get sucked into a mad bidding war for a common box, another cheaper one will come around shortly after! £120 is ridiculous to be honest, £25 is a very good price.

I love Sharps...there are some really fab looking models about. The 9494 is the nicest looking Sharp in my collection I reckon
 

Hallsy

Member (SA)
Not too bad then!!

I was bidding on a nice looking Universum 16600 the other day, but with shipping it ended up going for more than I wanted to pay for my first box.

As you say, plenty of choice not to get sucked into bidding wars!!
 

Beosystem10

Member (SA)
Welcome from another GF-9090 owner. They're one of very few decent sounding boxes that are still cheap to buy, I have plenty of spare silicon fuel line - as used in R/C models - if yours needs a fresh capstan sleeve (they all do sooner or later, the tell-tale sign of when they need this job doing is that they fail to take up the slack tape so tape spills out of the cassette and gets chewed up in the transport). My 9090 was £51 on eBay and was totally filthy when it arrived but it costs next to nowt for a bath full of warm soapy water and some detail cleaning with cotton buds so I was (and remain) still happy with it at the price
The 9090 is not only great to listen to but it's one of the easiest ever boxes to service and repair. Belt & sleeve job plus a head upgrade took me only 40 minutes and my fingers aren't as mobile as they once were so I'm slow these days.

Another box of pretty much the same size and weight which offers similarly good sound and ease of maintenance is the JVC RC656, grab one of those while they still go for loose change on eBay, I bought a really nice one from a forum member at a very fair price but then an even better one from a local seller on the 'bay for 99p as he'd described it as not working. All that needed was a cable reconnecting internally.

Enjoy the forum and maybe get yourself a T-shirt to celebrate joining? It's 2014's "must have" item of casual clothing. :thumbsup:
 

Hallsy

Member (SA)
Beosystem10 said:
Welcome from another GF-9090 owner. They're one of very few decent sounding boxes that are still cheap to buy, I have plenty of spare silicon fuel line - as used in R/C models - if yours needs a fresh capstan sleeve (they all do sooner or later, the tell-tale sign of when they need this job doing is that they fail to take up the slack tape so tape spills out of the cassette and gets chewed up in the transport). My 9090 was £51 on eBay and was totally filthy when it arrived but it costs next to nowt for a bath full of warm soapy water and some detail cleaning with cotton buds so I was (and remain) still happy with it at the price
The 9090 is not only great to listen to but it's one of the easiest ever boxes to service and repair. Belt & sleeve job plus a head upgrade took me only 40 minutes and my fingers aren't as mobile as they once were so I'm slow these days.

Another box of pretty much the same size and weight which offers similarly good sound and ease of maintenance is the JVC RC656, grab one of those while they still go for loose change on eBay, I bought a really nice one from a forum member at a very fair price but then an even better one from a local seller on the 'bay for 99p as he'd described it as not working. All that needed was a cable reconnecting internally.

Enjoy the forum and maybe get yourself a T-shirt to celebrate joining? It's 2014's "must have" item of casual clothing. :thumbsup:
Thanks for the advice :)

My 9090 arrived on wednesday, initially I was very disappointed as in the ebay pictures it looked pretty good other than the odd scratch, and was listed as working well. The reality was, it was scratched, tweeter trims scraped up, damaged tuner window, battery terminals seriously corroded, battery acid leakage inside which had caused some internal corrosion, and mud/sand in some of the sockets - it looked like it had been used on a building site!

The radio was iffy, right vu meter a little tempramental, scratchy switches and a tape deck that doesn't play (see above!).

The tape deck looks to be the same old thing, as mentioned by yourself, the capstan rubber is slipping and not driving the idler. I will strip the tape deck down tomorrow and hopefully sort it out - the belts are a bit slack, but will hopefully have some suitable o-rings to replace them with. I have some rc fuel hose kicking about somewhere, so hopefully I'll be able to get the deck running again. What was the 'upgrade' you did to the head?

After my initial disappointment, I slept on it, and decided that I didn't mind doing the work to bring it back to former glory - I was just annoyed that it was a lot worse than listed. Decided to get the internals sorted, and if it runs well, then I'll worry about the cosmetics.

So yesterday I had some work to do in the garden, so cranked the radio up!! I gave the sliders a quick clean which sorted the scratchiness out, and after it had been running for a while it seemed to improve, the right vu meter came to life eventually!

One thing I have noticed is that it goes loud enough, but seems a bit bass shy. There is a definite channel imbalance as well, you can see it on the VU's and also hear it, one channels has much more bass & mid, whereas the other has more treble!

So hopefully I can bring the electronics back to former glory first, then the cosmetics - I need to get hold of a service manual (does anyone have one?) and get some pics up - I'll start a thread when I get back from work :)
 

Beosystem10

Member (SA)
There's a service manual on the hifiengine site that covers the 9090, so that's easy enough to get. The head upgrade was accidental! I found that the record/playback head on my 9090 was very badly scored, so much so that not only did it have the usual wear across the swept area but it also had scratches bad enough to trap the thumbnail right in the middle of the left channel. I can only assume that someone had been abusing it somehow so anyway, there I was with a by then nice clean box, new capstan sleeve, good belts and an O ring replacing its mushy idler tyre, radio all good and looking the dog's bollocks but it would only play some tapes and then with one dodgy channel, this all because of that head.
Eventually, after checking the impedance values of various candidates, I selected a suitable replacement from an Akai top loading cassette deck that had been given to me after its owner's Mrs made him promise to destroy it after its psu (paper insulated like those in the cheap Chinese valve amps that swamp eBay these days, shame on Akai) caught fire one day and scared her a little :-D . It was little used, the head was found compatible and even under close scrutiny, it showed no signs of wear so into the 9090's deck it went and the 9090 now sounds great. Greater, I should say, since once they're all set up properly they really can punch well above their weight.

Regarding the channel imbalance; does it still have this if you switch it into mono mode? Mine was that way but I persisted with cleaning the mono/stereo/wide switch several times and eventually, it came out OK. I replaced a few caps in mine, but only around the audio stages and the difference was negligible. These things were pretty well built and they're certainly not like the newer stuff whose electrolytics appear to have been designed to explode an hour after the warranty has expired!
 
Sorry to hear that the Sharp's condition wasn't at the standard you were expecting. I'd be onto the seller to request at least a partial refund to help cover the cost of repairs to get the 9090 back up to speed.

Good luck,

James.... :-)
 

Hallsy

Member (SA)
Sorry chaps - I missed these further posts - I had only been updating my other thread.

Good info there beosystem10 - I haven't actually compared in mono, so I will do :) Sounds like you had a good result with the head :) I have played with the azimuth on mine, but trouble is, I can set it so that it sounds good with the door open, then I close the door and of course, it is different!! I guess that is why some casette doors have the thumbscrews?

I will check out hifiengine :)
 
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