schematic is attached. This thing is probably the most confusing one ive seen in a while...
My question is about the dotted circle in the upper left hand corner near the first gain stage. it has a resistor and a diode inside it - what does this mean?
There is also a wierd symbol next to the standby switch and bridge rectifier - looks almost like an LDR bug symbol from a fender schematic. Huh?
Understanding Ampeg VT40 schematic
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beasleybodyshop
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Understanding Ampeg VT40 schematic
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martin manning
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Re: Understanding Ampeg VT40 schematic
P101 and P102 are optoisolators or LDR's (it says as much in the notes), and the oval near the standby is a neon pilot bulb with an integral resistor (P.L. is for Pilot Light).
Last edited by martin manning on Mon May 12, 2014 10:01 pm, edited 1 time in total.
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beasleybodyshop
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Re: Understanding Ampeg VT40 schematic
Thanks for the clarification Martin.
"It's like what Lenin said... you look for the person who will benefit, and, uh, uh..."