I recently picked up the transformers from a Marshall TSL-100 and would like to use these in a 100W project. The PT has a winding that's about 45VCT. The original 100W DSL schem is rather confusing so I'll cite the TSL-60 for reference.
Schem can be viewed here: http://schematicheaven.com/marshallamps ... 60_60w.pdf
Are the values of C61 and C62 critical? I have some non-polarized 10uf caps laying around...
What does the zener diode "ZD3" do? I don't have any and was wondering what some suitable substitutes might be.
Bias supply from bridge rectifier circuit
Moderators: pompeiisneaks, Colossal
Re: Bias supply from bridge rectifier circuit
That arrangement is a cheap way of getting another low current voltage source off of an existing winding. If I were using this transformer and wasn't worried about having a +-15 volt supply for IC's and etc. then I would just use that 45 volt winding as the bias supply. Use a bridge rectifier to get the voltage up.