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Thanks for posting this. These are authentic original program new chipswitches. I have sockets too. Rogerbird

Probably a bad memory capacitor, the 1000uf on the microprocessor board. I would replace both the 1000uf and the 470uf, they are both on the 5v line, also make sure the glue on the caps is cleaned off, it can get conductive and cause that too.

It took a while, but finally found some blanks that would work. These have been programmed by Bill's Two Way the owner of the Chipswitch technology.

I am selling them without install as well.

I have Authentic Chipswitches for sale + install (Nov 2020) You can email me: Rogerbird1 @ Aim . com Roger

Yes, I reposted it. .

Yes, I posted the Carl Merrill mod on my site and provided the bottom side board drawings. http://www.cbtricks.com/rogerbird/2510/2510betterhi.htm

No, that was a different mod,It was not part of the 'Better High Power Mod', by Carl Merrill. The NTE swap ended up not being recommended because the NTE part was a VHF part and was too noisy in the circuit. Also Carl's mod stated: It works better, and saves the cost of adding an ECG-340...

Uh.. No!

.. I have a "Swing Mod" on my site??? .. Rogerbird

If you see this Tom, Send me an email, Rogerbird1@aim.com, I have a question.

Thanks for the good words! And the “ is just a Young guy...”

Nope, I am still alive and kickin, I just moved back to Massachusetts.

Try checking the Bias in USB mode.

Your Welcome, Glad I could help. The brown wire and resistor/transistor mod is a Factory mod, and should be left intact. Later versions of the radio incorporated the mod into the main board. Roger

Thanks all. I try. I have sent you a PM and an email with my contact info. Roger

display THe HR series also can have bad caps on the display board. THere are 3 electrolytic caps on the display board. I would replace all 3. Also the voltage for the display comes from the Microprocessor board. Next to the 5v regulator behind the Memory cap, there are 3 diodes. the...

2600 Sent you a PM Roger

THe simplest test would be to make sure the coil side(s) have continuity.. If they are burnt open, they are bad and wont adjust. a simple ohm or continuity test would prove that. An LCR meter test would be the best. Roger

NOte Also make sure the PC board screws are tight.. generally if you are having Metering issues, it can be related to the board screws. Roger