[sdiy] simple transistor buffers?
dan snazelle
subjectivity at hotmail.com
Fri Nov 19 17:02:04 CET 2010
So i am working on a circuit where there are a bunch of outputs. to save space/opamps I decided it would be nice to use transistor buffers (emitter followers)
however when i switched to what i THOUGHT was a usable buffer, the output gain (versus opamp followers) dropped drastically.
let me see if i understand this properly. ( i dont think i do)
if i want to buffer an lfo that is running between + and - 12 volts, I was putting the oscillator wave through a 1k resistor into BASE. I was then putting the collector to +v. What confuses me is what to do with the emitter other than
this is where i take the output and a resistor to ground or -v should connect here.
I am not sure if i should put emitter to GROUND or to -v through say a 10k resistor.
Also, do I need to put a cap before the input to the base?
any help and or links to schematics for reference highly appreciated
thanks!
More information about the Synth-diy
mailing list