[sdiy] cool synth uses for super high-speed op-amps & high-speed differential amplifiers?

[Roy J. Tellason]

On Saturday 18 June 2005 12:20 pm, anthony wrote:
> I have 5 LM733's - high speed differential amplifiers or 'video' amps.
> Anyone ever use these for something cool? I got 'em from old satellite
> receivers.

I have some similar chips (and some of the same ones as well) that I got out 
of disk drives.  They were used as read head amplifiers.

You could probably make a hell of a balanced-input mic preamp using one of 
those.

> Also I have an HA3-2540C-5 which is a super fast op-amp from Harris.
> It has a 400V/uS slew rate.
>
> I thought if anything A/D/A conversion would be something to do with these.
> Some kind of fast interefacing perhaps.
>
> I also have a Calogic SD5001-MA which is like a fast 4066.

Is it still subject to the same limitations as far as supply voltage goes?  
I've got a fair number of 4066s on hand and the limit to 15V or so for supply 
voltage means I either have to run it single-ended with ac coupling or use 
some weird power rails like +/- 7.5V or something.