Why no Japanese Twansistors?

[Quinton Fulsom]

I'm really not understanding why more use of jap. trans. aren't used
considering most can be bought for anywhere from .05 to .50 max.
Phillips has an excellent selection of dual matched pairs in the bcv61,62,63
and bc847 etc.  These are standard amps though not DIFF/LIN like the 2sc1583
although it isn’t a pair itself .
Mitsubishi has the pnp arrays of 4 & 8 in the M54568L & M54569P


Thought I’d add the codes for Japanese Transistors for those who are
unfamiliar with them.
Quint


JAPANESE TRANSISTORS:

Element			2	S	A	7  9  8	A
			
			1	2	3	    4	5


Element 1
Type of device:  The number indicates the number of active internal or
external connections minus one.

Element 2
Inidicates device is registered with EIAJ.  (“s” number)

Element 3
Polarity and application.

			Letter		Polarity		Application
			A		PNP		High Frequency
			B		PNP		Low Frequency
			C		NPN		High Frequency
			D		NPN		Low Frequency
			J		P Channel	FET
			K		N Channel	FET

Element 4
Serial number, in order of registration with EIAJ.

Element 5
Suffixes indicate any improvements and their sequence.

A=First Revision
B=Improvement, 2nd Revision . . . etc.










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