PET composite video adapter

[Philip Belben]

> 10000uF = 10mF, of course. And 1000uF (a very common value) = 1mF. But 
> for some reason they're rarely written that way.

I suspect that the abbreviation (outside the usual system of unit 
symbols and prefixes) MFD for microfarad had already become so common 
that nobody dared.

It occurs to me that the mF in the video circuit might have been a 
mistranscribed uuF

>> Reminds me of describing speeds as angstrom per fortnight. Infact, 
> 
> 'Furlongs per fortnight', please :-)

Furlong per fortnight is roughly 0.1 mm/s, isn't it?  What's that used for?

Angstrom per fortnight isn't useful for anything, except possibly creep 
erosion of metal tracks on an ic.

> Or, of course, the infamous 'attoparsec per microfortnight', which is 
> close to the 'inch per second' and is thus useful for measuring tape 
> speeds :-)

I tend to normalise that with the multiplier prefix only in the 
denominator, as is recommended for SI units, but no-one else seems to.

ISTR the conversion between ips and picoparsecs per fortnight is about 
1.004, but I can't remember which way.

In similar vein, I tend to quote lengths of magnetic tape spools in stadia.


Philip.