Yes, and presumably the 'new in box' FT-817 the OP got would have that issue...
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On Sep 14, 2024, at 14:11, Freyja Clark Turner <wa3jpg@...> wrote:
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The self oscillation problem on the original 817 can be dealt with on the older original PA board interface by reversing the phase for the input to it, I've done that to each 817 that has landed in my shack.? At least its worked for me.
Hadassah
WA3JPG
Mike,
Besides the normal "transmit into non-resonant/non-existing antenna, blow finals" issue a Z817 can help with, there is the "battery pack drains, the finals self-oscillate and fry themselves" issue.
This issue is a particular concern for FT-817, not for FT-817nd or FT-818 radios.
Congrats on scoring a new in box radio after all these years, good luck!
Ken, N2VIP
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I recently got a new in box 817 non ND. I just got the z817 tuner. I sure hope I can protect the finals with this setup. Any protection suggestions?? I don't think the first gen 817 can be repaired easily... IF
Mike WA1MAD
I ordered them directly from Yaesu by phone.
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Mike KA2JAI
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Hadassah Freyja Sobel, J.D., Ph.D.
Arroyo Grande, CA.
