Carslbro 50 TOP

I got this Carslbro 50 TOP to fix (burnt OT).


OT : Drake 784-213 (4.4k Zaa)


Schematic (thanks Chambonino !)


The point is : on « my » 50 Top, power supply is quite different : PT has a central tap and no bias tap.


On this 50 Top, power supply conforms to the schematic


The 50 Top I have to fix …


So, I retraced its schematic :


I replaced electrolytic capacitors, OT (Hammond 1750N, 3.2k Zaa for JMP50) and 47k bias replaced by a 100k variable resistor


It plays loud with great crunch. Nice vintage amp !

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