matched transistors

[Haible Juergen]

	>In a lot of vco and vcf designs you find matched transistors. For
optimum 
	>use a ssm2210 and ssm2220 are ideal, but can you also use a
transistor 
	>array, or aren't they 'matched' enough?

Depends on the application.
When you're talking about CA3046 and the like, these are fine if you only
need
equal temperature for both transistors. In some applications you also need
low offset voltage, low offset voltage drift, high beta, low noise. Then the
cheap
array will not do. 

JH.