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From: Patent Tactics, George Brock-Nannestad Shawn wrote: > > I have a 78 stamper of an Opera number recorded in the 1950s, > it is very clear and playable, (although you have to play it counter clock, > and it had not lived a kind life. It is copper with a nickel facing. ----- it is not playable very well by means of a mono stylus or a thorn needle, because the two sides of the groove have different information (one being delayed one revolution with respect to the other. However, a truncated elliptical (previous reservations still valid) and BROAD stylus in a stereo pickup works well: just take one channel. Kind regards, George