On Sun, 27 Feb 2005 17:06:22 +1100, bruce johnson wrote:

anybody ever had a NE612 ic working with 28mhz 3rd ot xtals as local int osc
?
bruce vk3mn

The test circuit in the SA612 data sheet uses a 34MHz 3rd OT
oscillator. You should be able to tweak it to run at 28MHz.
The oscillator section appears to be a single NPN transistor.


http://www.qsl.net/wb4vlq/sa612.pdf

73, Ed. EI9GQ.


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