I am trying to build a mixer to connect two oscillators to. I am using a ttl 74LS266 IC. However when i complete all of the connections i receive no output. THe frequencies are going in properly, but i receive no output. I also checked the other gates and saw that there was no output in any of them. I should be getting a high output on the other unused gates, however i don't. I tried 2 chips of the same model, and got no output from either one.
can this be a malfunction of the chip itself. Is there anyway i can test this. Additionally what type of chip can i replace this with.
Attached is the schematic of my circuit. The schematic uses a CMOS 4077 however i am using the ttl 74LS266. My two oscillators use 74LS132 chips instead of 4093s.
I need a mixer and i am stumped by this dillemma.
thank you!
can this be a malfunction of the chip itself. Is there anyway i can test this. Additionally what type of chip can i replace this with.
Attached is the schematic of my circuit. The schematic uses a CMOS 4077 however i am using the ttl 74LS266. My two oscillators use 74LS132 chips instead of 4093s.
I need a mixer and i am stumped by this dillemma.
thank you!
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