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Beogram 1800 type 5213 part missing

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chartz
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chartz posted on Sat, Oct 31 2015 4:24 PM

Hello,

This gorgeous deck came with an excellent SP10, it is in good condition overall - except for the infamous desiccated rubber feet that make any metal around rusty, only screws here.

Now my query is the following: the deck is complete, but one part is missing. It is part 21, simply called "mat" in the service manual.

Could any of you show me what it looks like, what it is made of, and, most importantly, measure its three dimensions?

Thanks!

 

 

 

Jacques

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Dillen
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Dillen replied on Sat, Oct 31 2015 4:30 PM

Number 20 is the strobo disc if I'm not mistaken.
Not missing in the photo.

Martin

chartz
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chartz replied on Sat, Oct 31 2015 4:35 PM

Sorry Martin, edited. Part n°21.

Jacques

Dave Farr
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Hi Jacques,

It's a thin piece of yellow foam. I can't just lift the strobo disk off the centre to measure it. I'll look again tomorrow in the daylight.

Dave.
chartz
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Thanks Dave!

Jacques

Dillen
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Is it double-sided adhesive foam that holds the strobodisc to the platter base ?

Martin

Dave Farr
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Dillen:

Is it double-sided adhesive foam that holds the strobodisc to the platter base ?

Martin

Not quite. It seems as if it may be stuck underneath (but I haven't tried to lift it yet) but the strobo disc is just freely resting on the top of it. There is no residue of any fixative. It just seems to be a way of raising the disc more neatly with the adjoining black mat.

Dave.
chartz
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The strobe (pressed metal) is held by the rubber mat in which a groove is moulded around its inner circle to do so.

There is no trace of any adhesive anywhere.

Without the missing part, the whole mat, including the strobe disc, is not held firmly in place, even with the circlip at its end stop down the spindle.

I quote Tim:

"The turntable platter and mat looked similar to those of the Beogram 1000 but were different in detail, for example the centre silver section was a metal pressing instead of a plastic moulding. To prevent resonances this was damped from underneath by a foam rubber disc."

Jacques

Dave Farr
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And there I was thinking the black mat was just loose on the TT.  I hadn't spotted the groove for the tachodisc but yes, it is there.  But how to get to that circlip to remove it?  It's really awkward to get to because of the 45 rpm adapter on top of it.  I can't measure the foam unless I take the tachodisc off.  I'll get around to it - I'm setting up my new ATV4 at the moment and multi-tasking is not a strong point of mine.

Dave.

chartz
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The circle just moves up along the spindle. Edit: chez Jacques, the EP adapter is free to be lifted out. 

Thanks for bothering Dave!

I will post a picture tonight.

 

Jacques

chartz
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There. I seem to miss ring number 15 as well then. Is there some sort of spring?

 

 

 

 

 

Jacques

Dave Farr
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My adapted doesn't seem to want to lift out! Not sure what part 15 is yet?

Dave.
chartz
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Don't damage anything Dave, okay?

Jacques

Dave Farr
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I won't. I'd call it quits before then as much as I'd like to help.

Dave.
Søren Mexico
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Here from my BG 1000, the lower of the 2 rings is from the center piece, just a retainer ring, pull up the center piece with the ring, if very hard add a little oil to the spindle

Collecting Vintage B&O is not a hobby, its a lifestyle.

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