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There are several board "types" but if you have this one...
Here's what I would do...
Locate rear panel in Yellow Square,
Locate Q54 - to it's right - next to it are a SMD cap and Resistor
Place BANDED end of Diode to Starred location
(towards rear panel)
Use a 220ohm resistor in series
-solder it's free end to opposite side of these two parts
To compromise the Limiter to function less clipping - SHORT out D28 using solder blob or remove and solder jumper in place.
AM ANL W10 pot can now control Limiter linearly...
To disable Limiter remove D41 - Not shown TP501
Warning and CAUTION: For Educational Purposes Only It is your Equipment It is Your Responsibility DON'T Blow it! We Cannot Be Held Responsible for your Actions
I did the mod on the lincoln 2 with removing D28 and AM and SSB audio worked perfectly fine after mod. This was on the older v3. Not sure what people are running into or if they just removed it without doing the NPC mod. Very hard to fit the parts in but I managed it. Why did I do the mod - because I wanted to drive a particular amp with 1 watt input and the radio on AM the peak was super low when carrier was turned down. NPC solved that.
On 955 this is not an issue though so wouldn't do the mod on that radio.
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