OP amps?

[mikegyver]

I noticed that all of my modules have the same type of Op Amp but with minor variations in the additional lettering.

Can anyone comment if all of the Op amps are essentially the same on each module? Or are there specific differences?

Just curious

 

[pettymusic]

They are probably all the same. From what I've learned, the extra letters/ numbers (other than "h11f1") represent things other than functionality. Packaging type?

Though, someone with more experience than I can clarify.

 

[12afael]

there is not op amp in the modules that I have seen. they are Photofets opctocouplers and they are used to switch the module on and off. they are not as good as relays for the sound but they have some good things, they are cheap and they are slower than relays so it is more easy to not have pop noise when you switch them.