Different speeds for HP-41CX and HP-41CV

[Jim Horn]

As mentioned, the tolerance of components give a tolerance in CPU speed. The 41's processor clock speed is determined by a LC oscillator, not a quartz one or other precision design.

This can be demonstrated by doing the BEEP function on a number of different 41s. Most will sound about the same but there will be some with audibly higher or lower pitch than the others.

For what it's worth, my early 41C (#1932A00186) had a lower pitch BEEP than any other '41 I ever encountered. Perhaps the earlier ones ended up slightly slower?