matching trs in leach amp

arthur · 27th November 2005, 04:16 AM

hi,
is it possible to get match pairs of mje15030/31
and mj15003/04?

What cirteria to match ?

Thanks
Arthur

Byrd · 27th November 2005, 04:37 AM

Hi Arthur

It is not really necessary to match them but if you do - match the Hfe's

djk · 27th November 2005, 12:56 PM

The PNPs are like peas in a pod, all essentially the same.

The NPNs vary a bit, but with the large value emitter resistors specified, matching is not really needed.

27th November 2005, 04:16 AM	#1
arthur diyAudio Member Join Date: Oct 2001 Location: .	matching trs in leach amp hi, is it possible to get match pairs of mje15030/31 and mj15003/04? What cirteria to match ? Thanks Arthur

27th November 2005, 04:37 AM	#2
Byrd diyAudio Member Join Date: Dec 2003 Location: Cape Town, South Africa	Hi Arthur It is not really necessary to match them but if you do - match the Hfe's __________________ Ross Saunders

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27th November 2005, 12:56 PM	#3
djk diyAudio Member Join Date: Feb 2001 Location: USA	The PNPs are like peas in a pod, all essentially the same. The NPNs vary a bit, but with the large value emitter resistors specified, matching is not really needed.