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Look for hoe in datasheet Hoe=1/ro
For example for the BC548A http://www.electro-tech-online.com/custompdfs/2009/06/85113.pdf
We can read form datasheet that Hoe=18uS for Ic=2mA and Vce=5V. VA=Ic/hoe≈110V
Or we can read the Hoe for different Ic current from the graph "Relative h parameters versus collector current"