So, I realize this is in the mechanical TV forum but the circuit I am trying to build is for a mechanical tv... does that count?
I am using a dfplayer mini to put out the mutr15.wav video signal. It seems to be doing fine however the output appears to be from 0 to about .8v-or ..9v dc. The signal is also upside down and I am assured this is fine and not abnormal.
The thing is though, I keep thinking I want the output to be 0 - 5vdc. It feels like it would be easier to pick out the synch pulses at that point.
I have a bunch of LM358 and some ca3140 op amps. Is there a simple way that a circuit could be designed that would boost that < 1v to a peak of 5v? I see a lot of OPAMP circuits online but I am not that great of an Analog person.
Any ideas?
thanks!