[78-L] Fw: styluses

[Iñigo Cubillo]

It could well be the hill and dale system, or maybe it's as simple as a very wide lateral groove. In Spain some old Odeons have it so wide that a standard 2.7mil stylus gets lost into the groove bottom, sliding from side to side, and producing a big noise and a very faint signal.

To test if it's a vertical groove: you need a stereo cartridge. Are you using one, I suppose  ??? Then take the stereo cartridge out from the arm, and revert the polarity of ONE of the channels; replace cartridge in the arm, and select MONO in the amp, mixing the two channels. Thus, the cartridge will now emit vertical component only.

Iñigo Cubillo