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Showing posts with label Pest Repeller Circuit. Show all posts
Showing posts with label Pest Repeller Circuit. Show all posts
Tuesday, April 16, 2013
Pest Repeller Circuit
The two timers in the bug repeller have some interesting characteristics. Roth of them have their thresholds externally set; the oscillator on the left
LM139J
MPC508AP
MAX668EUB
MAX695CWE
L4978D
LM3578AM
LM380N
LM2574M-ADJ
DAC0800LCN
AT45DB041D-SU
has a 50% duty cycle and the oscillator on the right acts as a VCO.
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