Linux-Hams archive - September 1998: Re: soundmodem ptt circuit

Re: soundmodem ptt circuit

Thomas Sailer (xlqx@worldonline.dk)
Mon, 07 Sep 1998 13:57:10 +0200

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Mike Bilow wrote:
> A very American question: is a BC548 NPN or PNP? Which is the collector? :)

Shame to you, even Motorola does make these transistors ;-)

http://www.mot-sps.com/books/dl126/pdf/bc546rev1.pdf

To answer the question: it is NPN

Tom

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