| Cobra 21 LTD |
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| Power Modification
1) Change R76 to a 1K Ohm resistor. 2) Change R43 to a 2.7 Ohm resistor. 3) Change R108 to a .47 Ohm resistor. 4) Re-tune for Max Forward power You can cut D9 for more modulation. This will disable VR5. VR1 "S" Meter VR3 TX Meter VR4 Squelch VR5 AM Modulation VC1 TX Freq Adjusting L8, L9, L10, L13 will give you a few more watts. Make sure the final transistor is a 2SC1969. |