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First Watt F5 - Page 17

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Figure 13 shows the square wave response at 200 KHz at 1 watt. The amplifier is flat to
DC, and -0.25 dB at 200 KHz.
If you have the equipment to see it, you may find that different gain devices will give you a
small peak somewhere just below 1 MHz. I have found that you can trim this by playing
with the values of R13 and R14, but as both values approach 0 ohms, you are likely to see
parasitic oscillations.
You can additionally limit frequency response with an input capacitor across R10, and also
in the feedback loop with capacitance across R5 and/or R8. As you can see, I have chosen
not to.
Figure 14 shows the behavior of the amplifier clipping into 1 ohm at +/- 10 amps.

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