SIL components, and Re: Thru zero FM

[jhaible]

>I wonder how good the time-dependant modulation works with other >TZVCOs
>like the E.N. one. Thats another way of asking if Yamaha style FM is
>possible in the analog realm.

The Tru zero FM I've retrofitted to a 3340 VCO is a little "dirty"
around the zero crossing as well. I guess it's the comparator:
No hysteresis -> prone to oscillation
Hysteresis -> tends to miss short zero crossings forth and back.

>BTW, what are your motivations of using BA6110 instead of CA3080 ?
>
>>Pinout! I like to matrixboard with that SIL stuff. Very handy that you can
>>expand your circuit both sides of the IC! I guess the circuit would work
>>equally well with a CA3080 or LM13600.

Yes that's a big advantage on veroboard or single sided PCBs.
One reason why I prefer a japanese dual transitor over a 3086
transistor array.
There are a lot japanese opamps in SIL packages, too.
I did not find the time to ckeck data sheets, but it would be great
to have a few equivalents to 4558, 072, 5532, 358 etc. in SIL
package. Anybody found some useful general purpose SIL audio
opamps ?

JH.