[sdiy] Prophet 10 op-amp swaps?

[Eric Frampton]

The TL074 is fine, and the other LME49710's on the outputs are fine; it's the one 49710 on the Upper EQ that is oscillating. Though you can't hear it, you can see it on the scope (and it is heating up those Upper output 49710's a bit), so it should probably be dealt with.


On Jul 31, 2013, at 2:58 PM, Fast TriggerFish <fasttriggerfish at gmail.com> wrote:

> I would have thought that if the op amp was self oscillating at a high frequency then you would hear *nothing* or at least the performance would be very poor.
> 
> So is this not rather a case of if it sounds good then it's good?
> Plus since the TL074 is internally compensated the chances of it self oscillating when used like this seem rather slim?