251641-02 PLA Chip

• As used in the C16 and Plus 4.
• Non-soldered socket pull chip, tested BASIC boot and with diag cart and loaded a game from tape.
• Scroll down for a modern replacement module for the C16 (PLAnkton-TED)

317053-01 Lo Function ROM for Plus 4

• As used in the Plus/4 at U25
• Non-soldered socket pull chip, tested BASIC boot and with diag cart (checksum OK)

317054-01 Hi Function ROM for Plus 4

• As used in the Plus/4 at U26
• Non-soldered socket pull chip, tested BASIC boot and with diag cart (checksum OK)

318004-04 Kernal ROM

• As used in the C16 and Plus/4
• Non-soldered socket pull chip, tested BASIC boot and with diag cart (checksum OK)

318004-05 Kernal ROM

• As used in the C16 and Plus/4
• Non-soldered socket pull chip, tested BASIC boot and with diag cart (checksum OK)

318006-01 BASIC ROM

• As used in the C16 and Plus/4
• Non-soldered socket pull chip, tested BASIC boot and with diag cart (checksum OK)

4164 RAM Chip for Breadbin C64 (excluding p/n: 250466 boards) Also used in the Amstrad CPC464 etc.

• Organization: 64K x 1, Speed: 150ns or faster. Package: 16 pin DIL
• As used in all but the last "breabin" C64 board (PCB p/n boards have 2 x 41464s instead of 8 x 4164s)
• Unused, clean, old stock parts (all chips tested for 2 hours before dispatch)
• Also used in the Commodore +4, Amstrad CPC 464 etc (replacing 4264 types)

Faulty RAM chips in the C64 often result in an "Out of Memory" error on boot or less than 38911 bytes free. A crude but often effective way to test which chip is bad, is to "piggy-back" a working chip on each RAM chip one at a time. If the error goes away or at least changes, there's a good chance that chip is faulty.

7805 Voltage Regulator

Replacement 5 volt regulator IC for the Spectrum, (breadbin) Commodore 64, ZX81 etc

8360 TED Chip for C16 / Plus 4

• This is the 48 pin chip at the heart of the C16/Plus4 computers. It provides sound, video and IO functions and often is often found to be the cause of faults such as black screen, visual artifacts or other issues.
• Non-soldered socket pull chip, tested BASIC boot and with diag cart
• A heatsink is highly recommended (this is provided by the lid of the Plus4's RF shield box, but the C16 has no default heatsink)

8501 CPU Chip for C16, Plus4

• Non-soldered socket pull chip, tested BASIC boot and with diag cart
• A bad CPU is often responsible for the black-screen-on-boot fault (as is the TED chip)
• These ICs run hot so a heatsink is highly recommended (5mm high type for the +4 as space is restricted)

PLAnkton+4: A  251641-02 PLA replacement module for CBM +4

• This is a special version of the PLAnkton-TED (which replaces the 251641-02 chip) for the +4 which has tighter space constraints compared to the C16.
• Made by Eslapion, creator of the original C64 PLAnkton
• Runs cool and draws a fraction of the current of the original chip.

PLAnkton-TED: A  251641-02 PLA replacement module for C16

• Replaces the 251641-02 PLA chip (U16) in the C16 (Please note: the current version will not fit in the Commodore Plus 4 due to physical case restraints, it should fit the Commodore 116 though as its PLA is located in a position where there is more space above the chip).
• Made by Eslapion, creator of the original C64 PLAnkton
• Runs cool and draws a fraction of the current of the original chip.