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This MOSFET replacement you posted has proved to be an inexpensive replacement solution compared to the CB-20 by Eleflow ($20!).  Cost to replace all parts was less than $3 for me - if you make the biasing device yourself.  I made one but didn't use it - BTW.



Removing/replacing a couple of parts wasn't that hard to do.  The old glue/shmegma on the board made it hard to find L40 tho; so I traced it out using a schematic from CB Tricks.