Alternate for BC550C?

[Haible Juergen]

	>I was admiring the Interpolating Scanner that Juergen Haible has on
his
	>JH-4 page (http://www.synthfool.com/diy/hj_vcfsc.gif), and I
decided I'd
	>like to build one of my own and see what it can do.  My only
problem is
	>that BC550C transistors seem a bit hard to come by in North
America, unless
	>I missed something everywhere I looked.  Could anyone suggest a
suitable
	>alternative, please? Thanks.

The BC550C is my "workhorse" small signal transistor, because it has high
beta, low noise and can stand some voltage as well.
In this particular circuit, neither high beta nor increased voltage is
needed.
Pretty much any silicon small signal npn will do, as long as it can stand
30V.
But choose a low noise type if you want a good SNR of the VCAs.

(Circuit is for private use only, i.e. no commercial products.)

JH.