Introdução

The first R-1159 teardown on ifixit, maybe the internet too?

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    • This is a Panasonic R-1159 portable AM transistor radio from the late 1960s. It has a standard 9V battery and a ferrite core antenna built in. It was manufactured by Matsushita Electric in Japan.

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    • To begin disassembly, just pull open the case with your bare hands. Next, you can see the internal PCB and battery.

    • Be careful when Removing the battery! Do not short out the terminals with the connector. 9 volts is a painful shock.

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    • Once the battery is removed, you can see the whopping 7 transistors in all their glory. For comparison, the Intel 4004 microprocessor from 3 years later in 1971 had well over 2300 transistors. Microprocessors today have billions!

    • (The transistors are the silver metal cans)

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    • Next, carefully remove the three screws from the PCB. You can either use a flathead screwdriver or a Philips screwdriver. (Both will work).

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    • Next, carefully pull out the PCB with your hands.

    • Be careful when pulling out the PCB, since the wires are very fragile and delicate.

    • It’s been a while since traces were hand drawn, there was no such thing as CAD software back then to help PCB development.

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    • You’re now done! To reassemble, follow steps in reverse order to complete.

Mr.CircuitBoard

Membro desde: 30/04/25

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