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I haven't found anything on this particular mod in here, I apologize in advance if Ive missed it. I have a 142gtl, it was my first radio. It also has many extra channels added and scattered. I am trying to connect a PLJ-6LED 6 digit counter. I am having issues with power and signal. Keep in mind, I am not an electronics engineer. I picked up my signal from TP1 and the ground beside it. I used a 100 ohm resistor on my signal side. The counter does display frequency in receive and transmit. I pulled my power from the power supply (13.8v). Installed an IC7808 voltage regulator in my external enclosure with the display. 2 issues... After making the connections at TP1, IC4 bit the dust. Replaced it and only lasted a few minutes (could be a bad part, or my ignorance). I have checked everything I have found to check, Voltage on pin 2 of IC4 should be 2.95v, I have 6.6v. Pins 5 and 6 should be 1.9v, I have 1.1v. I have since recapped, no help. Also with the frequency counter plugged into the radio, upon power up I have a very loud squeal. With the counter powered from a bench supply, seems fine. Any help would be greatly appreciated.

<blockquote data-quote="Spams24" data-source="post: 854776" data-attributes="member: 69335"><p>I haven&#039;t found anything on this particular mod in here, I apologize in advance if Ive missed it. I have a 142gtl, it was my first radio. It also has many extra channels added and scattered. I am trying to connect a PLJ-6LED 6 digit counter. I am having issues with power and signal. Keep in mind, I am not an electronics engineer. I picked up my signal from TP1 and the ground beside it. I used a 100 ohm resistor on my signal side. The counter does display frequency in receive and transmit. I pulled my power from the power supply (13.8v). Installed an IC7808 voltage regulator in my external enclosure with the display. 2 issues... After making the connections at TP1, IC4 bit the dust. Replaced it and only lasted a few minutes (could be a bad part, or my ignorance). I have checked everything I have found to check, Voltage on pin 2 of IC4 should be 2.95v, I have 6.6v. Pins 5 and 6 should be 1.9v, I have 1.1v. I have since recapped, no help. Also with the frequency counter plugged into the radio, upon power up I have a very loud squeal. With the counter powered from a bench supply, seems fine. Any help would be greatly appreciated.</p></blockquote><p></p>

[QUOTE="Spams24, post: 854776, member: 69335"] I haven't found anything on this particular mod in here, I apologize in advance if Ive missed it. I have a 142gtl, it was my first radio. It also has many extra channels added and scattered. I am trying to connect a PLJ-6LED 6 digit counter. I am having issues with power and signal. Keep in mind, I am not an electronics engineer. I picked up my signal from TP1 and the ground beside it. I used a 100 ohm resistor on my signal side. The counter does display frequency in receive and transmit. I pulled my power from the power supply (13.8v). Installed an IC7808 voltage regulator in my external enclosure with the display. 2 issues... After making the connections at TP1, IC4 bit the dust. Replaced it and only lasted a few minutes (could be a bad part, or my ignorance). I have checked everything I have found to check, Voltage on pin 2 of IC4 should be 2.95v, I have 6.6v. Pins 5 and 6 should be 1.9v, I have 1.1v. I have since recapped, no help. Also with the frequency counter plugged into the radio, upon power up I have a very loud squeal. With the counter powered from a bench supply, seems fine. Any help would be greatly appreciated. [/QUOTE]

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