Roman Kubat
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Description
JiffyDOS without switch
### DESCRIPTION
JiffyDOS without switch for Commodore 64
### TECHNICAL DETAILS / COMPONENTS
1 x 74HC74
1 x 27C256
### LEARN / TOPIC / BUILD INSTRUCTIONS
JiffyDOS is started by default.
If you press down the RESTORE-key during power-up/reset then the original Basic starts.
You need to remove the original ROM and solder socket DIL28.
Put JiffyDOS to DIL28 socket and solder Reset (red wire) and Restore (white wire) to R3 pin and +.
Oct 12,2018
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JiffyDOS without switch
2 Layers PCB 27 x 40 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen
6323
23
7
8.00 (2)
Published: Oct 12,2018
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- Comments(7)
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John Anderson Jan 21,2025
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Mariusz Fiedorowicz Nov 24,2024
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Engineer Oct 04,2024
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Rob Egly Apr 05,2024
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Paweł Barszczowski Dec 17,2022
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Commodore Bench Nov 11,2022
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BSzili Sep 25,2022
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CTOSian Jul 15,2022
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Milan Malasits Jun 29,2022
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Francisco Meza Apr 23,2022
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Maxim Dorkó Oct 03,2021
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Jessica L Petersen Nov 18,2020
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Engineer Aug 20,2020
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(DIY) C64iSTANBUL Apr 08,2020
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Nick Konstantinidis Nov 15,2019
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Mert Uckan Oct 08,2019
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Alen Salamun Sep 30,2019
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mike danick Aug 22,2019
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Steve?Sexton Aug 08,2019
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Türk Christian Apr 27,2019
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Brian Veditz Apr 02,2019
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Maik Renkert ( Privat ) Feb 22,2019
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Engineer Dec 10,2018
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![Maxim Dorkó](/project/img/images/avatar/user_pic-70x705.png)
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YES.
Thank you ! :)
I would like to know this also. What is the best way to mod this board for 24 pins?
Noticed that it was 28 pin after building it. ?? what gives.. I thought all 64s were 24 pin on the roms..
Hello can you create a 24 pin version of this great switchless mod for the breadbin version