From what I've attempted to glean from photos, here is a sketch.
Could someone verify this?
Besides the 10kSil added to the WD1772, when adding resistors to fix floppy performance; on the 7406, there should be five 100k resistors wired from the pins coloured red in the drawing, (2,4,6,8,10) all terminating together at pin14.
Is this the correct ? :?
7406 and Floppy Fix
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PeckPeekPoke
- Posts: 68
- Joined: 25 May 2021 19:52
- Location: New England
7406 and Floppy Fix
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FOR GREAT JUSTICE. TAKE OUT EVERY ZIG
800xl+U1mb, STfm, STe, 030
800xl+U1mb, STfm, STe, 030
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exxos
- Site Admin

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Re: 7406 and Floppy Fix
This topic has all the info.
https://exxosforum.co.uk/forum/viewtopi ... =17&t=1395
https://exxosforum.co.uk/forum/viewtopi ... =17&t=1395
Yep sounds correct. But 1k not 100k.PeckPeekPoke wrote: 22 Jun 2022 16:56 Besides the 10kSil added to the WD1772, when adding resistors to fix floppy performance; on the 7406, there should be five 100k resistors wired from the pins coloured red in the drawing, (2,4,6,8,10) all terminating together at pin14.
Is this the correct ? :?
-
PeckPeekPoke
- Posts: 68
- Joined: 25 May 2021 19:52
- Location: New England
Re: 7406 and Floppy Fix
Thank you! 8-)
FOR GREAT JUSTICE. TAKE OUT EVERY ZIG
800xl+U1mb, STfm, STe, 030
800xl+U1mb, STfm, STe, 030
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