Toonopnemer Sx index
S+R SC12 SC501 SC502 SC7 Schaub draadkop SCI SK451
SK452 SK461 SL15 SP1 SP10 SP12 SP14 SP15
SP2 SP6 SP7 SP8 SP9 SP Blue SPU ST105
STC481 STCS Stereo 60 Stereo 105 Stereo 106 Stereo 107 Stereo 109 Sterodyne II
Stereodyne III STK496 STS144 STS200 STS220 STS222 STS244 STS310
STS344 STS444 SX1M