[sdiy] LM394 vs. MAT02 vs. ?

[rizacan]

There is also MPQ3906 which is 4 times 2n3906 (4 matched PNP). It is a 
litle bit expensive but good transistor.




Metrophage wrote:

>--- larry at unicode.com wrote:
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>>I have been looking for LM394's for use in the CGS VCO module and
>>found a couple of sources at just over $5US each.  I noted from
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>several
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>>articles that the MAT02 might be usable as an alternative, however
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>I've only
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>>found a few at $15US each!  Is there any significant difference
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>between these
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>>two parts?  At there any substitutes that would work just as well but
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>be
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>>more available and cost less?  Should I jump on either of the parts
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>at the
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>>indicated prices?
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>>Larry T.
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>Well, I never see LM394's anywhere. I have tried MAT02's with excellent
>results on my ASM-1 VCO clone as well as on my (unfinished) real ASM-1.
>Word on the street is that the MAT0x and THAT units are the best
>matched. I am not very knowledgable about transistors yet, bet these do
>seem a lot better than, for instance, the 3046 arrays.
>
>I don't know if you need these to be a certain pin format for a PCB, or
>if you are wiring it yourself - but there are some decent, inexpensive
>transistor pairs out there.
>
>2SC1583		- dual NPN, 5-pin SIP, common emitter, Mitsubishi
>2SA798		- dual PNP, 5-pin SIP, common emitter, Mitsubishi
>2SA1349		- dual PNP, 7-pin SIP, Toshiba
>2SC2291		- dual NPN, common base
>2SC3381		- dual NPN, 7-pin SIP, Toshiba
>
>These can often be found in price ranges from less than a dollar, to
>two dollars each. I know I have seen them on the pages of MAT
>Electronics (PA), and electronix.com (OH). Maybe not as accurate and
>low-noise as the $15 units, but probably still consderably better than
>the RCA arrays or hand matched (same substrate). If you are interested,
>there are datasheets online. For years I had no idea that these
>existed!
>
>$5 for LM394 is probably quite good. Some places still carry the Analog
>Devices SSM2210 matched NPN pair for a comparable price.
>CJ
>
>
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