John Curl's Blowtorch preamplifier part II - Page 179

john curl · 19th October 2009, 02:21 PM

At the Burning Amp meeting, the replacement parts for the now discontinued Toshiba parts were offered. The light is not entirely extinguished, when considering seriously making a Blowtorch preamp, or equivalent design, in future.

Curly Woods · 19th October 2009, 02:28 PM

Quote:

Originally Posted by john curl

At the Burning Amp meeting, the replacement parts for the now discontinued Toshiba parts were offered. The light is not entirely extinguished, when considering seriously making a Blowtorch preamp, or equivalent design, in future.

Good morning John. I hope that the Burning Amp event went well for you. So are these Toshiba devices a one to one reproduction of the original Toshiba devices or are they just "close" to the same?

ikoflexer · 19th October 2009, 03:07 PM

Quote:

Originally Posted by john curl

At the Burning Amp meeting, the replacement parts for the now discontinued Toshiba parts were offered. The light is not entirely extinguished, when considering seriously making a Blowtorch preamp, or equivalent design, in future.

Can somebody please list the recommended cross-reference parts? I doubt I'll build anything like that soon, but it'd be handy to know them.

PMA · 19th October 2009, 04:03 PM

LSK/LSJ + usual Toshiba number. BTW, I asked samples, they promised to send, but shipped nothing.

janneman · 19th October 2009, 04:11 PM

Quote:

Originally Posted by PMA

LSK/LSJ + usual Toshiba number. BTW, I asked samples, they promised to send, but shipped nothing.

Pavel, contact me at jan at linearaudio dot nl , I may be able to help you.

jd

PMA · 19th October 2009, 06:15 PM

Thanks, Jan.

ikoflexer · 19th October 2009, 06:28 PM

Thanks Pavel. I was hoping someone would say they announced an equivalent dual for 2sj109. I suppose we're still talking about lsk170/lsj74 matched, right?

QUESTION: I've been searching quite a bit part one of this thread (thousand+ pages), but haven't been very successful. Does anyone have handy a pointer to a reasonable schematic that resembles (functionally at least) the BT preamp? I'd like to do a bit of analysis on it, for fun.

syn08 · 19th October 2009, 06:35 PM

Quote:

Originally Posted by ikoflexer

QUESTION: I've been searching quite a bit part one of this thread (thousand+ pages), but haven't been very successful. Does anyone have handy a pointer to a reasonable schematic that resembles (functionally at least) the BT preamp? I'd like to do a bit of analysis on it, for fun.

http://www.diyaudio.com/forums/solid...ml#post1930881

Have fun (if analyzing this <insert your attribute here> anywhere resembles fun)!

PMA · 19th October 2009, 06:43 PM

They are preparing and evaluating 109 parts.

ikoflexer · 19th October 2009, 06:46 PM

He, he, you guys are hilarious

Thanks!

19th October 2009, 04:03 PM	#1784
PMA diyAudio Member Join Date: Apr 2002 Location: Prague, Kitakyushu, Fukuoka	LSK/LSJ + usual Toshiba number. BTW, I asked samples, they promised to send, but shipped nothing. __________________ Pavel Macura, consultant http://cz.linkedin.com/pub/pavel-macura/4/783/637

19th October 2009, 06:15 PM	#1786
PMA diyAudio Member Join Date: Apr 2002 Location: Prague, Kitakyushu, Fukuoka	Thanks, Jan. __________________ Pavel Macura, consultant http://cz.linkedin.com/pub/pavel-macura/4/783/637

19th October 2009, 06:43 PM	#1789
PMA diyAudio Member Join Date: Apr 2002 Location: Prague, Kitakyushu, Fukuoka	They are preparing and evaluating 109 parts. __________________ Pavel Macura, consultant http://cz.linkedin.com/pub/pavel-macura/4/783/637

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19th October 2009, 02:21 PM	#1781
john curl diyAudio Member Join Date: Jul 2003 Location: berkeley ca	At the Burning Amp meeting, the replacement parts for the now discontinued Toshiba parts were offered. The light is not entirely extinguished, when considering seriously making a Blowtorch preamp, or equivalent design, in future.

19th October 2009, 06:28 PM	#1787
ikoflexer diyAudio Moderator Join Date: May 2008 Location: Toronto	Thanks Pavel. I was hoping someone would say they announced an equivalent dual for 2sj109. I suppose we're still talking about lsk170/lsj74 matched, right? QUESTION: I've been searching quite a bit part one of this thread (thousand+ pages), but haven't been very successful. Does anyone have handy a pointer to a reasonable schematic that resembles (functionally at least) the BT preamp? I'd like to do a bit of analysis on it, for fun.

19th October 2009, 06:46 PM	#1790
ikoflexer diyAudio Moderator Join Date: May 2008 Location: Toronto	He, he, you guys are hilarious Thanks!

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