ON 20080215@5:36:56 PM at page:
http://www.sxlist.com/logic/ttls.htm#39493.4727314815
James Newton[JMN-EFP-786] published post 39493.4727314815

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The totem-pole output should be at the bottom (the cathode) of the diode, not the emitter of the lower transistor.
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