How to match two BJT to be used in linear amplifier

I'm looking for a schematic which could be used to easily compare two BJT transistors to be able to use them in a linear amplifier for a radio purpose.

Usually I bought two BJT which are with same parameters but now I could not do this and need to find in my collection of medium/high power BJTs two which could be used.

About 40 years ago we paired the transistors for Hfe. So just cobble up a DC low current source and drive 10mA into the base and see how much collector current they take. I've still got a tin of them somewhere which had very low or high gain!
Frank

There are some ICs that have matched BJT pairs on a single die.. CA3086 is an old example..
They may help you..

try this

Transistor matching

you can also use something like this,
there is a mistake in the lower circuit of the two shown in the next file, the 10k is missing, you should add it if you use it

Alex

Thanks for this info Alex.