Hiya!
OK, I have a pile of 6N1P tubes kicking around here, and want to use them to make a bunch of op-amps for a project. All is good, based the design on the Philbick K2-W(J) with the values of all the passive elements re-sized accordingly, so it should be fine. Except...
The K2-W (and most any op-amp, I guess) needs a -300 VDC supply as well as the +300 VDC one (usual B+) one. Question is, how do a make a *negative* supply? A schematic would be most appreciated
Many thanks in advance!
OK, I have a pile of 6N1P tubes kicking around here, and want to use them to make a bunch of op-amps for a project. All is good, based the design on the Philbick K2-W(J) with the values of all the passive elements re-sized accordingly, so it should be fine. Except...
The K2-W (and most any op-amp, I guess) needs a -300 VDC supply as well as the +300 VDC one (usual B+) one. Question is, how do a make a *negative* supply? A schematic would be most appreciated
Many thanks in advance!