All posts by Robert Graetke

precision screw driver for SME tonearms

Some customers ask often for a better tool to adjust the SME tonearms. I offer since years these precision screw driver. It´s made in Germany.

New european distributor for Sun Audio / Uchida triode amps

The tube amplifiers of Sun Audio, Japan are now available at Acoustic Dimension in the Netherlands.

Acoustic Dimension
Mr.  Peter de Bruyn
Email: info@nullacoustic-dimension.com
Phone +31-15-8892700

New Mono power amps

In the product range added with a few changes. The both new monoaural amplifiers are very interesting by the strong driver stage and the interstage transformer.
New are two monaural amplifiers:

  • SV-2A3EPX (2A3 PP amplifier with interstage transformer)
  • SV-2A3TSX (2A3 PSE amplifier with interstage transformer)

SME 3012-R black, really a beauty

I got this beautiful tonearm two months ago in a dusty and broken state for repair. One of the main problems were the most required spare parts in black, these were from SME specially made because only silver parts are available for this tonearm as standard. After the repair, it is a real beauty , he looks even more beautiful in real than in the picture. It is a very rare tonearm, I had several hundred SME tonearms in the last years in my workshop, but only a handful of the SME 3012-R in black.

Rebuilding an Sun Audio / Uchida SV-2A3 triode amp

I rebuild and build very often these Uchida / Sun Audio triode amps, so I made pictures from the rebuildung procedure. It´s published on the 2A3-Maniac blog of Carsten Bussler.

Refurbishing of an Ortofon RMG309i (repair and rewire)

These Ortofon RMG309i tonearm comes in a dirty and not great condition, after a intensiv cleaing and the professional service it looks and works perfectly again. The new internal tonearm wire (Pure Silver Hair Wire) and the refurbishing and precise adjustment of the bearings brought a significant improvement in performance.

 

New hum balance adjustment for Sun Audio amps

We just designed a new parts for the Sun Audio amps. The parts are for the improved hum balance adjustment and brings also high quality teflon sockets for the 2A3/300B tubes. We manufacture those parts on our own maschines.

Headshell prototype

That´s a new headshell prototype made from Aluminuin-titanium-alloy. The weight of these solid headshell is with 16,2 gramms a little bit higher, but just right for the SME 3009/3012 tonearms. It has a flat geometry matched to install flat cartridges like a Denon DL103.

Refurbishing of an very old Ortofon RF 297 include custom made armboards

I refurbished these wonderfull Ortofon RF297 tonearm for a customer and designed a custom made armboard with arm rests and a bronze base. It´s a copy Continue reading Refurbishing of an very old Ortofon RF 297 include custom made armboards

new armboard for Platine Verdier turntables

 

After ten years we redesigned the armboard for the Platine Verdier turntables, here is the result. These armboard Mk3 for SME tonearms works only with the bronze groundplate standard in conjunction with an SME 3009, SME 3010, SME 3012, as well as all SME M2 tonearms.

SME 3012 Series 2 Stainless Steel Edition

This very rare SME 3012 S2 in early version with the split counterweight. This tonearm is unique and in outstanding condition. Continue reading SME 3012 Series 2 Stainless Steel Edition