[sdiy] Semi-OT: odd capacitor values

[Ingo Debus]

Well, this is not quite synth-related, but maybe some of the older guys here know…
The capacitors on the tone generator of my Hammond organ are labeled 0.105MFD and 0.255MFD. Are these really 0.105 microfarads and 0.255 microfarads capacitors, or does the last digit 5 mean something else? I have read that Hammond hand-selected the capacitors back then to match them with accompanying transformers/inductors. Why would they have chosen such odd values? Does anyone know?

These are wax-paper capacitors and of course their values have gone way up over the years (the organ still sound nice though), so measuring won’t help.

Ingo