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Messages - dafortier

#1
General Questions / Re: More Amperage?
February 27, 2018, 10:44:01 AM
Someone else mentioned a bigger transformer as well. And a heat sync. I don't have the specs on the transformer but I'll see if I can dig it up.   Thanks! Glad I asked before I started swapping parts!
#2
General Questions / More Amperage?
February 23, 2018, 01:56:29 PM
I have a Furman SPB-8C pedalboard / power supply that has 8 dc outputs at 100ma max each.  Which is fine for most pedals.  However, I do have a few pedals that require more than 100ma.  Some at 9v, and some at 18v.  I have the schematic from the mfg and it looks pretty simple.  Each dc output has AC input from the transformer to a diode rectifier rated at 1amp, some capacitors and a transistor.  LM78L09ACZ.  The specs on the transistor say it's rated at 100ma.  I'm assuming that's where the 100ma limit comes from.  Would it be possible to replace that transistor with one that that has a higher amperage rating.  Like NJM78M09FA-ND.  (9v, 500ma).  See attached schematic for reference.