Beogram 8002 platter

[Valentin Apostolov]

<pre id=”tw-target-text” class=”tw-data-text tw-text-large JgzqYd RES9jf tw-ta” dir=”ltr” tabindex=”-1″ role=”text” data-placeholder=”Превод” data-ved=”2ahUKEwiCsLilhZGVAxW2h_0HHafcNkMQ3ewLegQIDBAY” aria-label=”Преведен текст: Hello, can anyone who has a Beogram 8000 or 8002 please provide the dimensions and weight of the platter (thickness, diameter…), because I have a Beogram 8002 that is missing the top platter. My idea is to make my own platter.”>Hello, can anyone who has a Beogram 8000 or 8002 please provide the dimensions and weight of the platter (thickness, diameter…), because I have a Beogram 8002 that is missing the top platter. My idea is to make my own platter.

[Mark-sf]

The platter diameter is 300mm and the height is 24 mm; however, it was not a solid piece of aluminum as it was cast with the underside hollowed out. I believe the weight was around 1.5kg but was never published. A solid piece would be too heavy at about 4.6kg. This would require you to remove about 16.mm of material except for a 1-2mm outside edge. For this motor design it’s essential for the platter to be light weight as the servo system with its ~200mm rotor would be impaired by the higher inertia of a typical direct drive platter. You would also need to stencil the black ribs. The black rotor that supported the turntable platter was part of the motor. Do you have that?

• This reply was modified 4 hours, 27 minutes ago by Mark-sf.
• This reply was modified 3 hours, 59 minutes ago by Mark-sf.

[TK]

Platters also come up for sale quite frequently in various marketplaces, ranging from USD $50 to $100.  In the mean time, you might consider milling two solid discs with a diameter of 10cm each.  Place a layer of rubber on the bottom one for a bit of grip.  Place the bottom disc on the spindle with the rubber facing up, next the record, last the top disc as a weight to hold the record in place and level to the bottom disc surface.  You might need to make the top disc a bit heavier to provide additional stability.  I haven’t tried this myself, but I feel like it would work fine, provided it is balanced properly, and can compensate for the 1.5g of downward pressure provided by the tone arm.

 

 

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