Hi. I recently got a CR VIC-20 (PAL) with a (suspected) broken 7406 chip. I guess I can replace this with a SN7406? Not sure what the difference is.
Cheers,
Mathop
7406 replacement
Moderator: Moderators
Re: 7406 replacement
SN7406 is a 7406 manufactured by Texas Instruments. Should be equivalent. Who manufactured the one that's there now?
Re: 7406 replacement
Don't recognize the logo - it's some stylized F
See below:
See below:
- Attachments
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- IMG_20230213_230242790.jpg (16.09 KiB) Viewed 561 times
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doug_in_nc
- Vic 20 Enthusiast
- Posts: 160
- Joined: Wed Feb 24, 2021 11:32 am
- Location: NC, USA
- Occupation: Engineer
Re: 7406 replacement
That's a Fairchild chip.
If you are interested in identifying the manufacturer of an IC, the site I link to below is very useful. I thought your IC was a Fairchild one, and that site confirmed it.
https://how-to.fandom.com/wiki/How_to_i ... heir_logos
If you are interested in identifying the manufacturer of an IC, the site I link to below is very useful. I thought your IC was a Fairchild one, and that site confirmed it.
https://how-to.fandom.com/wiki/How_to_i ... heir_logos
Last edited by doug_in_nc on Thu Feb 16, 2023 9:44 am, edited 1 time in total.
Re: 7406 replacement
Great, thanks.
I stole a SN7406 off a spare C64 board, VIC-20 now loads from disk properly.
I stole a SN7406 off a spare C64 board, VIC-20 now loads from disk properly.