Hi, being the amateur/newbie that I still am, I have not wanted to take a second look at any op amp circuits that require a dual supply. But, then I found the circuit below in an old schematics encyclopedia and it looked simple enough to build. So, I did. (This was before I found out about the nifty little LT1054 IC.) I added a switch to the circuit and made some changes that are indicated on the schematic. I'm wondering if any of them are bad ideas or unnecessary. Especially the trim pot, via which I'm able to get the 2 outputs nearly spot-on to each other. (But, I've been reading things that make me think that op amps are supposed to have slightly different outputs. Yes? No???)
Anyway, the circuit works, but there is a voltage spike when it is first turned on—for just a few seconds—before the 2 outputs settle down to a little bit below half of the input voltage.
Is there any easy way to prevent that voltage spike and keep the circuit able to handle any input voltage in the specified range?
![Op Amp Supply.jpg Op Amp Supply.jpg](https://maker.pro/forums/data/attachments/58/58460-1531706d0db7e45125ee09075676004a.jpg)
Anyway, the circuit works, but there is a voltage spike when it is first turned on—for just a few seconds—before the 2 outputs settle down to a little bit below half of the input voltage.
Is there any easy way to prevent that voltage spike and keep the circuit able to handle any input voltage in the specified range?
![Op Amp Supply.jpg Op Amp Supply.jpg](https://maker.pro/forums/data/attachments/58/58460-1531706d0db7e45125ee09075676004a.jpg)