10Mhz Quartz crystal. Quantity 10.
Package HC49-UScl = 18pF
Great for frequency marker calibration oscillator, club/ Intermediate exam project, etc.
Lots of circuits on web.Post and packing within the U.K. £1.60 . (Any quantity).
Other countries, £1.80 Free insurance.
See other components and tools, etc. all at low prices in my e bay shop. Postal discounts given whenever possible, prior to checkout.