Schematic help

[Paul Lameiro]

4k7 means 4.7k ohms.  This is common in Europe.
Sometimes they like to use commas instead of 
periods also.

Paul



Raymond C Drouillard wrote:
> 
> On Mon, 14 Sep 1998 21:37:40 -0500 Joe Boucher <jboucher at ctelcom.net>
> writes:
> >I've got this schematic I want to put together.  Two questions:
> >
> >1) There are some resistances called out in the format 4k7.  Does that
> mean
> >4.7 k?
> 
> I have seen that kind of designation on capaciters.  I believe that the
> "4" is the mantissa, and the "7" is the multiplier.  40 Meg Ohms seems
> really high, though.
> 
> >
> >B) There are transistors called out as 2n222a.  Is that really PN222A?
> Can
> >PN222A's be used instead of 2N222A?
> 
> The 2n2222 is a very common NPN transister.  You can get them at Radio
> Shack for something like three bucks a ten-pack.  I used them in my
> senior project to send really short 200 milliamp pulses to an ordinary
> LED.  Yes, the LED took it just fine.
> 
> >
> >Good day and thank you for your support.
> >
> >
> >Joe Boucher
> >'70 RS/SS Camaro  '81 TBI Suburban
> >
> 
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