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 250466 boards have 2 x 41464s instead of 8 x 4164s)
• Unused, clean, old stock parts (all chips tested for 2 hours before dispatch)
• Can also be used in the Commodore +4, Amstrad CPC 464 etc (replacing 4264 types) and Spectrum 16/48 for its Upper RAM (replacing 4532,3732) but NOT the Spectrum's lower RAM (4116).

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-R2 TED Chip for C16 / Plus 4

• Original, salvaged part - never soldered.
• Compatible with - and has the same functionality as - the original 8360 TED.

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.