7406 and Floppy Fix

General discussions or ideas about hardware.
Post Reply
User avatar
PeckPeekPoke
Posts: 39
Joined: Tue May 25, 2021 7:52 pm
Location: New England

7406 and Floppy Fix

Post by PeckPeekPoke »

From what I've attempted to glean from photos, here is a sketch.
Could someone verify this?

CAM_0253.JPG
CAM_0253.JPG (138.55 KiB) Viewed 119 times

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 ? :?
FOR GREAT JUSTICE. TAKE OUT EVERY ZIG
800xl+U1mb, STfm, STe, 030
Top
User avatar
exxos
Site Admin
Site Admin
Posts: 18625
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:
Contact exxos

Re: 7406 and Floppy Fix

Post by exxos »

This topic has all the info.

https://exxosforum.co.uk/forum/viewtopi ... =17&t=1395
PeckPeekPoke wrote: ↑Wed Jun 22, 2022 4:56 pm 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 ? :?
Yep sounds correct. But 1k not 100k.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Top
User avatar
PeckPeekPoke
Posts: 39
Joined: Tue May 25, 2021 7:52 pm
Location: New England

Re: 7406 and Floppy Fix

Post by PeckPeekPoke »

Thank you! 8-)
FOR GREAT JUSTICE. TAKE OUT EVERY ZIG
800xl+U1mb, STfm, STe, 030
Top
Post Reply

Return to “HARDWARE DISCUSSIONS”