[time-nuts] 5>10 doubler

[Gerhard Hoffmann]

Am 28.01.2015 um 01:57 schrieb Charles Steinmetz:
> (again, not many of us amateur time nuts).  Once upon a time, Motorola 
> made monolithic quad BJTs -- but I'm not aware of any matched quads 
> similar to 2N2222s at this time.  [Several manufacturers still claim 
> to make MPQ2222s, but those are not monolithic and not matched.]
>
There still are
< http://www.analog.com/static/imported-files/data_sheets/MAT04.pdf >
< 
http://www.intersil.com/content/dam/Intersil/documents/hfa3/hfa3046-3096-3127-3128.pdf 
 >

if duals are enough:
< http://www.analog.com/static/imported-files/data_sheets/SSM2220.pdf >,
< http://www.analog.com/static/imported-files/data_sheets/MAT12.pdf >
also mat02, mat03, maybe SSM2110,


I have used most of them :-)
< 
https://picasaweb.google.com/103357048842463945642/LowNoisePreamplifiers?authuser=0&feat=directlink 
 >


regards, Gerhard