[sdiy] MD918 Dual Transistors?

[Michael Ruberto]

The datasheet indicates |VBE1-VBE2| is 5 mV. Under this it shows 
Delta|VBE1-VBE2|/DeltaTA is 10uV/Degrees C.
Looks like these guys are the same as the old 3046 performance wise.

M. A. Ruberto

>From: James Patchell <patchell at cox.net>
>To: "Michael Ruberto" <frankentron at hotmail.com>,synth-diy at dropmix.xs4all.nl
>Subject: Re: [sdiy] MD918 Dual Transistors?
>Date: Sun, 24 Jul 2005 21:24:17 -0700
>
>Well...yes you could...although...I would be asking "Would you want to use 
>the part"?  If the matching is over 1 mV and the part costs 
>say....$4...there are better alternatives.  The MAT-04 from analog devices 
>and the THAT3xx parts from That Semiconductor are reasonably priced and 
>high performance.  Also, you can just glue together a pair of 
>2n3904's...without even testing them...and probably get just as good a 
>match....but if they only cost 50 cents a piece...well that is a horse of a 
>different color...I would probably even go for them at that 
>price...well...maybe... :-)
>
>At 12:00 AM 7/25/2005 -0400, Michael Ruberto wrote:
>>I could not find the part with ON Semi, but it is listed still with 
>>Central Semi in Long Island NY. Unfortunately their site does not say what 
>>the status or availability is. I have sent them an email.
>>At least they had the datasheet there. Now I can actually use the part.
>>
>>M. A. Ruberto
>>
>>>From: James Patchell <patchell at cox.net>
>>>To: "Michael Ruberto" 
>>><frankentron at hotmail.com>,synth-diy at dropmix.xs4all.nl
>>>Subject: Re: [sdiy] MD918 Dual Transistors?
>>>Date: Sun, 24 Jul 2005 20:55:59 -0700
>>>
>>>Those were originally made by motorolla....last time a checked...they did 
>>>not make any of the MD series parts (but I might be wrong...check ON 
>>>Semiconductor...they would have gotten that line when they were split 
>>>off)....I wanted to get some MD8000 parts several years ago and 
>>>discovered they were no longer made (high voltage matched)...
>>>
>>>At 11:29 PM 7/24/2005 -0400, Michael Ruberto wrote:
>>>>Anybody know if these are still in production? If so, are they 
>>>>worthwhile for synth use?
>>>>
>>>>M. A. Ruberto
>>>
>>>         -Jim
>>>***************************************************************
>>>http://www.oldcrows.net/~patchell
>>>
>>>***************************************************************
>>>
>>
>
>         -Jim
>***************************************************************
>http://www.oldcrows.net/~patchell
>
>***************************************************************
>
>