[sdiy] 1458 sub for 4558?

[Joe Kramer]

Dear Doug,
    You could use just about any medium slew rate op amp as a replacement for a
4558--TL072/82, LF353, 5532, etc.  If it's just a matter of using what you have on
hand, the 1458 will work fine.  But the 4558 is not a rare chip--Mouser has them
for $0.38 each.  An exact replacement will at least give you predictable results.

Regards,
Joe Kramer



Terrebonne wrote:

> I'm repairing a JP-8 and need to replace a 4558 op-amp... Would a 1458 be an OK
> sub? I know the 4558 has a little bit better slew rate (both are pretty slow
> though) but the op-amp I'm replacing is in the +/- 13VDC supply not the audio
> path... The NTE replacement (NTE778A) seems to have the same specs as the
> 1458...
>
> Thanx,
> Doug
>
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