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Offline glinjikTopic starter

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schematic question
« on: April 21, 2022, 08:58:09 pm »
In the diagram below I have highlighted two areas of interest with red boxes, am I correct in assuming that part of the circuit should be fed a separate 12v source
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Offline james_s

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Re: schematic question
« Reply #1 on: April 21, 2022, 09:00:36 pm »
I don't believe so. It looks like those are just flags indicating the +12V supply and ground point it is referenced to.
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Offline TimFox

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Re: schematic question
« Reply #2 on: April 21, 2022, 09:11:30 pm »
I believe the two tags are for the unseen power connections to the ICs on another page, not an external power supply.
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Offline eugene

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Re: schematic question
« Reply #3 on: April 21, 2022, 09:19:05 pm »
That makes sense. VT1, VD1, and associated R's and C form a voltage regulator, presumably 12V.
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