I am trying to build a Boss HM-2 pedal using the schematic that i downloaded in the site, but i think there's something wrong with the schematic...when i saw the internal pictures of the Boss HM-2 there were 10 transistors on the board, but there were only 3 in the schematic..help pls..
Welcome to the forum!! From the sounds of it, you have the schem of only the effect signal circuit and not the flip-flop section. Which is where your seeing the extra transistors. If your building one from scratch and using a stomp switch, you won't need the flip-flops and can wire it up with a true bypass. So you'll all good to go. Let us know how it goes, sure lots here would like to see how a home brewed HM2 turns out.
Are you building one cause you can, or is the HM2 scarce in the philippines?
thanks for the help ChristoMephisto... dont know how the flipflop works...what kind of a switch would i use in the flipflops section???or does it need any switches???
The switch connected to the flipflop is needed. Without it you will not be able to turn the pedal on or off. It needs to be a the kind of switch that makes contact when pressed but breaks automaticly when released.
That was the path I was thinking of, using a dpdt stomper and making it true bypass instead of the extra work in adding the fet bypass section. Keep it simple
Is the boss HM-2 schematic working????
Posted - 08/15/2009 : 05:16:56
