HPR4192: Replacing backup batteries in my Kenwood HF Radio Part 2

Hacker Public Radio

Picture 1

shows the two replacement Kenwood batteries that I purchased from ebay.

Picture 2

shows the original clock battery fitted to my Kenwood radio. This battery retains the time, and alarm settings when the power is removed from the radio.

Link showing a fluke 77 Digital Multi-meter identical to the one I have.

Wikipedia article about de-soldering which shows a typical de-soldering pump (solder sucker) similar to the one I used.

Picture 3

shows the resistor I attached to one end of the new battery extending the leads so they reach between the two battery terminal posts on my Kenwood radio.

Picture 4

shows the new clock backup battery fitted to my Kenwood radio note the extended lead on the right hand side made from the leg of an old resistor I had lying around.

Picture 5

shows the poor lighting and cramped working conditions I had to deal with.