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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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mods
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kenwood
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th78a_4.doc
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1997-02-01
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TH78A.4
I'll attempt to draw the layout (I stress the word attempt).
top of radio
┌──────────────────────┐
│ back of front cover │
│ │
│ │
│ ╔════════════════════ Brass shield, soldered
│ │ at corners
│ ┌─┐ ┌─────┐ │
│ │ └───┘ ┌─│─┐ │
│ │ │ │ │ ═══════════ A chip 1/2 under shield
│ │ └─│─┘ │
│ │ ┌┘ ┌──┐ │
│ │ ┌┐ │░ ├──┤════════ Memory expansion slot
│ │ ││ │░ ═══════════╗
│ │ ││ └┐ │ ║
│ └──┘└───────┘ │ ║
│ │ ╚═ Diodes and oval cutout
│ │ (each # = 2 diodes)
│ │ diode 1 is on top, 6 on
└──────────────────────┘ bottom
I've made these mods on my radio and they DO work. As for increased intermod
problems, and the actual full ranges of tuning I have'nt determined them yet.
Anyone with more info, please upload it to the Quasatron Systems BBS (landline)
at 510-846-6085 or leave in a note.
Ken Mazie KD6IZY (sysop) Quasatron BBS, Pleasanton, CA
Uploaded by KD6ELA @ WA6KTK.#NOCAL.CA.USA.NA
Sorry about the size, I'll tell Ken to abbreviate a bit more next time. 73
/ed