RFT MS 25 SD

Data

RFT HIFI Stereo Sampling System MS 25 SD

General:

• Manufacturer: RFT, (VEB Elektroakustik Leipzig)
• Model: MS 25 SD
• Type: Magnetic system (MM)
• Year of manufacture approx.: 1979 (Ziphona PA 225)
• Made in: Germany ('DDR)
• Color: black
• Dimensions (WxLxH): 18,0 x 27,5 x 19,5 mm (without needle protection)
• Weight: 8,0 g
• Original price: 195,- DDR- Mark

Technical data:

• Frequency range: 20 - 20.000 Hz
• Transfer factor: 0.7 mV/ cms to the power of -1
• Crosstalk attenuation: 25 dB (1 khz)
  • in the range of 315 Hz- 6.3 khz: 22 dB
• difference of the transmission dimensions of both channels at 1 khz: 1.5 dB
• tracking force range: 15 - 25 mN
• recommended tracking force: 20 mN (2g)
• Scanning needle: Diamond SD-TGL 27619, spherical 13 - 18 µm
• Hole spacing: 12.7 mm ( 1/ 2 inch )

Remarks

• Needle replacement is angeblich to be performed by the manufacturer only,
  • needle can be pulled out though (picture 2)
• unsightly workmanship can be seen on the pictures

Pictures