Phase Linear Model 700 - Page 2

anatech · 3rd November 2006, 06:57 PM

Hi Hugo,
I don't recall the germainium transistors. That detail is lost to the mists of time. You would be correct if they are in there.

My guess is that you got burnt by that to have remembered it so well! I have my own memories (getting burnt!

).

-Chris

Original Burnedfingers · 4th November 2006, 12:09 AM

schematic

Original Burnedfingers · 4th November 2006, 12:25 AM

germaniums

2n1304 and 2n1305

sam9 · 4th November 2006, 12:27 AM

Try this link for more info

http://members.aol.com/__121b_wtpdMi...JmoOVPqu3ATQHn

Original Burnedfingers · 4th November 2006, 12:27 AM

germaniums

2n1304 and 2n1305

Still available. I would replace them with new.

Gibbi · 4th November 2006, 01:00 AM

Quote:

Now, again, be careful if you use my layout. I believe there is one small mistake

I will check your layout against my board, thanks again!

anatech · 4th November 2006, 01:15 AM

Hi Sam9,
Great site! Thank you for the link.

-Chris

Mark A. Gulbrandsen · 7th November 2006, 06:54 PM

Ok, I have to admit it... the Phase Linear 700 IS a dinosaur but it IS also a very powerful amp running +/-100 volt rails. It was Flame Linears best sounding amp as well. With up to date semi's, a real actual power supply with some real actual caps instead of the dinky doos they used plus some other mods I wonder if this dinosaur could be brought back alive to the higher performance standards we are used to today??? It might be fun to see what this old Quasi circuit can do with modern semis.

Should we call this a PLone instead of a CLone... then there is the ongoing KLone of the KSA-50?

P.S. You can all make fun of me for posting this but LuckyLyndy suggested this to me so here it is... so make fun of him too!

Mark

Zen Mod · 7th November 2006, 06:58 PM

what you gonna drive with this?
anyway-with working and building tempo like yours -have you any time for listening the muzaaaak?

Netlist · 7th November 2006, 08:07 PM

I'm all in - I own one - but not capable of dissecting the fine details of the design.
http://hometown.aol.com/__121b_wtpdM...JmoOVPqu3ATQHn
This is a good starting point; the schematic of the 700B and 700II is available and I have one of a slightly different version as well. Latest is with an opamp but I it might be more fun with all bipolars.

/Hugo

7th November 2006, 06:54 PM	#18
Mark A. Gulbrandsen diyAudio Member Join Date: Sep 2001 Location: Salt Lake City	Phase Linear 700 Clone??? Ok, I have to admit it... the Phase Linear 700 IS a dinosaur but it IS also a very powerful amp running +/-100 volt rails. It was Flame Linears best sounding amp as well. With up to date semi's, a real actual power supply with some real actual caps instead of the dinky doos they used plus some other mods I wonder if this dinosaur could be brought back alive to the higher performance standards we are used to today??? It might be fun to see what this old Quasi circuit can do with modern semis. Should we call this a PLone instead of a CLone... then there is the ongoing KLone of the KSA-50? P.S. You can all make fun of me for posting this but LuckyLyndy suggested this to me so here it is... so make fun of him too! Mark

7th November 2006, 06:58 PM	#19
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	what you gonna drive with this? anyway-with working and building tempo like yours -have you any time for listening the muzaaaak? __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb

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3rd November 2006, 06:57 PM	#11
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Hugo, I don't recall the germainium transistors. That detail is lost to the mists of time. You would be correct if they are in there. My guess is that you got burnt by that to have remembered it so well! I have my own memories (getting burnt! ). -Chris

4th November 2006, 12:25 AM	#13
Original Burnedfingers diyAudio Member Join Date: Nov 2002	germaniums 2n1304 and 2n1305

4th November 2006, 12:27 AM	#14
sam9 diyAudio Member Join Date: Jun 2002 Location: Left Coast	Try this link for more info http://members.aol.com/__121b_wtpdMi...JmoOVPqu3ATQHn

4th November 2006, 01:15 AM	#17
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Sam9, Great site! Thank you for the link. -Chris

7th November 2006, 08:07 PM	#20
Netlist diyAudio Moderator Join Date: Jan 2003	I'm all in - I own one - but not capable of dissecting the fine details of the design. http://hometown.aol.com/__121b_wtpdM...JmoOVPqu3ATQHn This is a good starting point; the schematic of the 700B and 700II is available and I have one of a slightly different version as well. Latest is with an opamp but I it might be more fun with all bipolars. /Hugo

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