Some time ago I was given a non-working service type SA, a Cushman CE-15.
https://www.radiomuseum.org/r/cushma...tor_ce_15.html
One of the horizontal amp's final transistors was faulty.
A transistor salvaged from a faulty CFL-light was a good match for the other transistor.
If I remember correctly the beta was around 30 or so.
It is still working fine.
Peter