Explore one of the most popular and widely used ICs: the 555-timer. Two of them are on this board, one for each mode of operation. A bistable latch enables start and stop of the clock (astable mode). Turn the frequency dial to adjust the speed. When stopped, a step button generates a pulse (monostable mode). Insert your own parts (capacitors and resistors) and be free to customize either mode. For example, create a 1 kHz astable clock or a 30 seconds monostable pulse.

Link the action-button of the 8-bit Workbench™ to create an astable-burst or just halt the clock. Attach a Super Breadboard and use the clock-output in prototyping (e.g. create a counter with a 74LS393). Create sequential timers by using a second board as trigger-input. Why not create your own computer with it?

Extend and combine this Terrific Timer with our other kits to learn and do (vintage) computer experiments. Visit our store to get more information on those products.

Buy three or more connecting 8-bit Workbench™ kits and receive a 15% discount. Use the code 8BW-KIT-DEAL in your cart.

See the documentation for details. Questions? Just ask!

• Shipping is tracked (you receive the tracking number), unless impossible to your country.
• For USA: package can be tracked with USPS as soon as it is in your country. USA shipping rates include all import duties, which are paid by me (the seller).
• No insurance, my experience is this is a farce anyway.
• Item ships within 3 business days (unless the item is a pre-order campaign, check its duration and lead time).
• Delivery is usually done within 10-15 business days, but may rarely take 4 weeks.