6502 and W65C02 CPU "NOP" Tester

The 6502 CPU is used in a number of vintage computers and games consoles including the Acorn BBC Micro, Apple I & II, Commodore 64, PET, Atari, Nintendo, and many more. Due to its popularity, there are numerous fake CPUs on the market, as well as, of course, genuinely faulty devices.

This tester allows you to perform a quick test of a 6502 CPU to determine if the chip is likely to be good or is faulty or fake.

It does this by presenting a permanent "NOP" (No Operation) instruction on the data pins, so that when a good device under test is powered up or reset, it will step through all the 64k addresses in sequence and the progress is displayed by the LED's.

Features:

Drives the CPU under test at 1MHz, 2MHz, or a slower, more visible, speed, switch selectable
The slow speed can be varied by means of the on-board potentiometer
Switch selection of 6502 or W65C02 CPU variants
"Halt" button to test for "Sally" variant
"Reset" button to start the CPU without having to switch the tester off/on
LED's display the status of most of the address lines
ZIF (Zero Insertion Force) socket for the CPU to be tested
USB-C socket for connecting power to the tester from any USB power adapter
Power On/Off indicator LED
Fully through-hole technology (except the USB-C socket)
Mounting holes enabling the tester to be fitted into a case or on feet
Full details via a downloadable PDF document

Note that this tester provides an indication that the device is faulty or fake, or is likely to be good. Due to the complexity of the CPUs, it does not guarantee that the device is working perfectly.

Shipping/Tracking Numbers:

Please note: Royal Mail does not issue tracking numbers for standard mail.
Please choose a tracked shipping option at checkout if you need a tracking number.

£ 29.99

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Items will normally be despatched same day if cleared payment is received before 12 noon (business days) via Royal Mail.

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Returns

30-day return guarantee

If you are in any way unhappy with this product you may return it within 30 days of receipt for a full refund, provided it is returned in its original, re-saleable, condition and packaging.

Return postage is the responsibility of the buyer.

In the unlikely event that the item is faulty then a full refund, including your return postage, will be given when the item is returned and verified as being faulty.

International

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International orders are always very welcome. Please note, however, that there is no tracking number available with the standard postage rate.

Delivery times vary between countries (and even within the same country!) and can be affected by customs and the speed of the postal service in the destination country.

Please note that the price of the item plus the postage paid does NOT include any customs fees, duties or other taxes that may be levied at the destination country.

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