I have a 10Mhz square wave, whose Vp~.4 to.6 VDC, I have a pull up resistor on it to get the low end at ~0 VDC. I need to make this guy TTL or close to. I've tried some op amps, common-emitter transistor amp, however no success. Does anyone have a good, relative simple circuit to do the job that they can share with me, or have any suggestions? Thanks