[sdiy] The future of synth DIY

[harry]

I'm kind of pleased with the MAT-04.  Maybe if enough prople wanted
a group buy we could get a good price out of Analog Devices. The Hfe
is in the 400 range, 14 pin DIP, etc...

Hey Martin: Are the protection diodes a problem IYHO ???

H^) harry

Martin Czech wrote:

> :::Even the 3046 would be very useful if someone would make it with better
> :::specs.  Hfe = 40 might have been Ok back in the '70s, but not today.  IC
> :::fabrication has advanced a lot in 30 years, why can't someone put 4 or 5
> :::transistors in a 14 pin dip with Hfe around 400 - 500, low Rbe, etc.
> :::
>
> Some of the applications of the 3046 are cheap switching, or cheap
> analog, you don't care then.
> OTOH more hfe means shallower base, this means loss of robustness.
> May be that's the reason.
>
> MAT02 and the like have special protection devices.
>
> :::Maybe we can get together as a group, and have a semiconductor fab house
> :::make some for us, with the specs we need.
>
> As long as we can get japanes duals...
> I bought a couple of them.
> Perhaps we should simply buy a large stock of these
> items, the price/usage ratio will be much better.
>
> m.c.