I have a mid/late 1960s Fender Black Face Super Reverb with some interesting
extra power supply filtering. I am wondering if anyone can explain why
someone did this to the amp. Apart from this the amp has a solid state rectifier, and master vol.... I would eventually like to do a cap job and wonder if all of the filtering is needed?
In the main ps filter cap housing there are the following
3 20uf/500v atoms - looks OK w/ schemo.
2 50uf/500v Nichicons which would be the 2 connected between +465V of the rectifier and standby switch. OK, beefed up a bit?
Now inside of the chassis mounted in between the bias pot and 6L6GC are 2 more large electrolytics (400uf/350v) in series with 220K 2W resistors between the + and - of each cap.
This cap array is between ground, and, where +465v and standby meet on the top left side of board.
Good schematic here for ref..
http://www.schematicheaven.com/fende...b763_schem.pdf
extra power supply filtering. I am wondering if anyone can explain why
someone did this to the amp. Apart from this the amp has a solid state rectifier, and master vol.... I would eventually like to do a cap job and wonder if all of the filtering is needed?
In the main ps filter cap housing there are the following
3 20uf/500v atoms - looks OK w/ schemo.
2 50uf/500v Nichicons which would be the 2 connected between +465V of the rectifier and standby switch. OK, beefed up a bit?
Now inside of the chassis mounted in between the bias pot and 6L6GC are 2 more large electrolytics (400uf/350v) in series with 220K 2W resistors between the + and - of each cap.
This cap array is between ground, and, where +465v and standby meet on the top left side of board.
Good schematic here for ref..
http://www.schematicheaven.com/fende...b763_schem.pdf
Comment