[Mark Korda]

Hi Labsters, I'm having a little trouble finding (4) 1000 microfarad polorized capacitors. Before I have to put on my dunce cap, isn't the numerical code (1000mfd),or is it written in a new way I'm just not getting. I've tried Parts Express and Antique Electronic Supply catalogs and have seemed to come up empty. Are there any places you can recommend.I need them in the rebuild of a pair of Dynakit PAM-1's, their first preamp(mono). Thanks a lot,any advise would be greatly appreciated......Mark Korda.

[Speedskater]

It looks a lot like "uF", but really the 'u' part is from the Greek alphabet.

[Mark Korda]

Hi Speedskater, Thanks for your reply. My electronic book said uF meant microfarad or 1 millionth of a farad.I thought I was reading my decimals wrong or something thinking it had to be a common cap that the 2 catalogs I mentioned would absolutley have. I then looked up the Mauser Co. and I found it. But Speedskater,if your still out there,how would you read or list (.001uF) as a cap? To me that means a hundredth and (1.000uF) means a thousand. Am I way off? Thanks Speedy.....Mark.

[Davey]

The old Dynaco schematics are somewhat confusing.  You may see capacitors labeled as X ufd, or X mfd, but it's the same thing, the value is in microfarads.  You also might see some values labeled as X mmfd.  That means micro-micro-farad or picofarad.

Example:  (.001uF) indicates 0.001 microfarads....or 1 nanofarad....or 1000 picofarads.

Cheers,

Dave.

[Speedskater]

I got dragged away from the PC yesterday.
So here is how the prefix values go:

Farad * F *  We now see Super Capacitors in the farad range. * 10⁰
milli-farad * mF* this is the correct modern use of the 'm'. * 10^-3
micro-farad * uF * 10^-6
nano-farad * nF * 10^-9
pico-farad * pF * 10^-12

[Mark Korda]

Speedskater and Dave, thanks alot.Those were great answers, I seem to get it now,and thats monumental! Once again,thanks for the help....Mark.

[Speedskater]

Moving on:

a 0.1F  =  100mF
a 0.1mF = 100uF
a 0.1uF = 100nF
a 0.1nF = 100pF

Hope I got it right.