Thread: B&K 1801 Frequency Counter
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  #3  
Old 09-17-2019, 09:51 AM
kf4rca kf4rca is offline
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Join Date: Feb 2015
Location: Atlanta
Posts: 957
Stay away from OptoElectronics. They use an op-amp that you can't get anymore.
If you're in to DIY, there are some great deals on Ebay:
https://www.ebay.com/itm/1MHz-1-1GHz...PgT-i5rjp42P5w
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