Premium Member Aapo Lettinen Posted March 4, 2021 Premium Member Share Posted March 4, 2021 I made a batch of 50Hz / 60Hz Crystal Frequency Modules if someone needs a stable frequency reference for pilot tone applications or other uses. It is a pretty neat and reliable design with accuracy of about 40ppm (parts per million) and designed for continuous use. The output frequency is selected with a jumper before startup. If anyone is interested, these are for sale for 50usd a piece + shipping. I can make more if needed. Designed and assembled by me with each board individually tested. 1 year warranty. DM me if interested :) 2 Link to comment Share on other sites More sharing options...
Premium Member Aapo Lettinen Posted March 4, 2021 Author Premium Member Share Posted March 4, 2021 it is available in eBay too though the price is a little higher due to eBay costs: https://www.ebay.com/itm/50Hz-60Hz-Crystal-Oscillator-Module/254889709824?hash=item3b589c5100:g:hPkAAOSwraBgQSxw Link to comment Share on other sites More sharing options...
Premium Member Aapo Lettinen Posted July 2, 2021 Author Premium Member Share Posted July 2, 2021 On 3/4/2021 at 9:48 PM, aapo lettinen said: it is available in eBay too though the price is a little higher due to eBay costs: https://www.ebay.com/itm/50Hz-60Hz-Crystal-Oscillator-Module/254889709824?hash=item3b589c5100:g:hPkAAOSwraBgQSxw Due to eBay's updated payment management policy, this item will not be available via eBay anymore. Contact me directly via PM if you are interested in this product. I have a sine wave version coming out in August as well. Link to comment Share on other sites More sharing options...
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