Commodore 16 internal 64K Upgrade

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Category:

Retro Computers >> Commodore >> C16 >> Hardware >> General / Add-ons

Listing type:

Fixed Price Multiple Items

Item Condition:

New

Seller location:

Tynemouth, United Kingdom

Ending in:

21 days, 22h:16m:02s

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Latest buyer:

S***C (1)

Fixed price:

£50.00 Buy now!

VAT, Duty and handling fees may be payable on Price & Shipping on receipt

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From only £4.50

Payment methods:

Paypal

Number Sold:

1 (View history)

Buyer	Value	Date and hour	Quantity bought
S***C (1)	£50.00	14/10/2024 14:27:11	1

Item Number : 64324

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Description

This is a module that can be used to upgrade a Commodore 16 to have 64K of RAM, to allow software intended for the plus/4 to be used.

Jumpers can be used to reduce the RAM to 16K if required for software compatibility, although so far no software has been found which will not work with extra RAM.

Installation requires four chips to be desoldered and sockets fitted. Two 74LS257s multiplexors and the two original 16K DRAM chips (4416 or similar).

Three additional signals (A14, A15 and phi 0) need to be tapped from elsewhere on the board.

This is only suitable for someone with the experience and tools to desolder these chips cleanly, so is not for the beginner.

This is a new design, but so far has not given any problems.

DO NOT BLAME ME IF YOU C16 DIES WHILST USING THIS UPGRADE

DESOLDERING EXPERIENCE REQUIRED - NOT FOR THE BEGINNER

The kit includes the module, four turned pin IC sockets and the cable and connectors to tap the three aditional signals required for the 64K upgrade.

Full details in a blog post - http://blog.tynemouthsoftware.co.uk/2024/06/new-commodore-16-internal-64k-ram-upgrade.html