[sdiy] The future of synth DIY

[Martin Czech]

No problem. I just wanted to say why a 3046 is possibly weaker then a MAT0x.

m.c.

:::Date: Fri, 02 Mar 2001 23:23:36 -0500
:::From: harry <harrybissell at prodigy.net>
:::To: Martin Czech <czech at Micronas.Com>
:::CC: 104065.2340 at compuserve.com, synth-diy at node12b53.a2000.nl
:::Subject: Re: [sdiy] The future of synth DIY
:::Content-Transfer-Encoding: 7bit
:::
:::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.