| Cobra 146 GTL |
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| 1) Lift anode of D-30 and connect a 5.6 uH choke in series. 2) Cut D-32. 3) Cut both traces on the PCB going to the clarifier . 4) Solder one wire to PCB ground. 5) Solder a wire from the other cut trace to an 8 VDC source (note: 8 volts can be found on the cathode of D-50) 6)This should give you 5 kc of slide.If more slide is wanted then change D-30 to a super slide diode. |
| Clarifier Modification |
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| Channel Modification |
| 1) Unsolder the UPD2824 PLL chip. This chip can not be modified. 2) Solder a new UPD2816 PLL chip in its spot. 3) Solder a jumper from pin 20 and 21 to ground. 4) Install a SPST switch on the radio. 5) Solder a wire from pin 9 to one side of the switch. 6) Solder a wire from the other side of the switch to ground. This will give you 27.420 to 27.860 |
| VR1 S-meter Adjust VR5 AM Modulation VR6 ALC VR7 RF Power Meter VR10 AM Power |
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