Facelift for a Dual 505-2 - Page 4

davecooper · 8th May 2012, 03:15 PM

If you are considering such drastic mods to the Dual, you may be interested in something I tried on a previous project. I mated a Thorens TD150 outer platter to a Rega subplatter using a machined adapter ring. This ring sat on the Rega subplatter, effectively increasing its diameter. The ring was machined with a step at its periphery to locate the Thorens platter. The Dual subplatter is not so different to a Rega so perhaps similar could be done to the Dual. I am not going to try this on my Dual as the original suspension would not cope well with the heavy Thorens platter. I’m not even sure whether it would foul anything on the Dual. Still, just a thought.

Larry365 · 8th May 2012, 07:20 PM

Oddly enough I had contemplated it but it would mean losing the "Dual 505" essence to the project. Also, the strobe markings and pitch control are an essential; different records have different weights and the speed fluctuates. This way means that there is control over the adjustment to get the speed correct for each record.

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8th May 2012, 03:15 PM	#31
davecooper diyAudio Member Join Date: Feb 2006 Location: Ulverston in Cumbria	If you are considering such drastic mods to the Dual, you may be interested in something I tried on a previous project. I mated a Thorens TD150 outer platter to a Rega subplatter using a machined adapter ring. This ring sat on the Rega subplatter, effectively increasing its diameter. The ring was machined with a step at its periphery to locate the Thorens platter. The Dual subplatter is not so different to a Rega so perhaps similar could be done to the Dual. I am not going to try this on my Dual as the original suspension would not cope well with the heavy Thorens platter. I’m not even sure whether it would foul anything on the Dual. Still, just a thought.

8th May 2012, 07:20 PM	#32
Larry365 diyAudio Member Join Date: Apr 2012 Location: London	Oddly enough I had contemplated it but it would mean losing the "Dual 505" essence to the project. Also, the strobe markings and pitch control are an essential; different records have different weights and the speed fluctuates. This way means that there is control over the adjustment to get the speed correct for each record.