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The key up of this radio is done by the use of a transistor, 2SA562, a "common" (good luck finding it) PNP switching transistor. Denoted as Q24, it is directly controlled by the key circuit of the microphone.
I have found this to be a common fault of circuits of this type....

73 mechanic

[QUOTE="mechanic, post: 386016, member: 9134"] The key up of this radio is done by the use of a transistor, 2SA562, a "common" (good luck finding it) PNP switching transistor. Denoted as Q24, it is directly controlled by the key circuit of the microphone. I have found this to be a common fault of circuits of this type.... :oops: 73 mechanic [/QUOTE]

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