72-73 Marshall Schematic

gearhead · 07-23-2007, 06:44 PM

Heh all, first post here!

Can anyone point me to a good 50 (or 100) watt 72-73 Ali Panel schematic?

It's the gainier/brighter sibling to the Plexi. Have hit a number of sites, but nothing so far (or maybe I'm just missing it?!)

Thanks!

Dave

bob p · 07-24-2007, 12:36 AM

you've already tried places like schematic heaven and the plexi palace?

gearhead · 07-24-2007, 12:51 AM

For schematics, yes. Schematic Heaven has a 1987, but the schemo was drawn in 1970.

Plexi Palace has schematics? I haven't posted there yet, but did some searches.

bob p · 07-24-2007, 01:03 AM

I dunno if they have them online, but I'm sure that somebody at plexi palace would have a metalface schematic.

dai h. · 07-24-2007, 04:55 AM

try Dr.Tube also. If you're into Marshalls, I would buy a copy of The History of Marshall by Michael Doyle. It doesn't have everything but it's a good base. A lead amp from the period you describe would usually have a '69 type split cathode lead circuit with 100k feedback R, perhaps a linear taper for the volumes--not too different I would think (though nothing ever seemed to be set in stone with Marshalls--different parts brands, odd values, small variations, etc.).

roknroll · 09-02-2007, 09:36 PM

http://www.drtube.com/schematics/marshall/2203u.gif

TD_Madden · 09-02-2007, 09:41 PM

layout like this?

http://www.ceriatone.com/images/layo...0Ceriatone.jpg

07-23-2007, 06:44 PM	#1
gearhead Junior Member Join Date: Jul 2007 Posts: 3	72-73 Marshall Schematic Heh all, first post here! Can anyone point me to a good 50 (or 100) watt 72-73 Ali Panel schematic? It's the gainier/brighter sibling to the Plexi. Have hit a number of sites, but nothing so far (or maybe I'm just missing it?!) Thanks! Dave

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07-24-2007, 12:36 AM	#2
bob p Senior Member Join Date: May 2006 Location: What's left of NW Indiana Posts: 1,072	you've already tried places like schematic heaven and the plexi palace?

07-24-2007, 12:51 AM	#3
gearhead Junior Member Join Date: Jul 2007 Posts: 3	For schematics, yes. Schematic Heaven has a 1987, but the schemo was drawn in 1970. Plexi Palace has schematics? I haven't posted there yet, but did some searches.

07-24-2007, 01:03 AM	#4
bob p Senior Member Join Date: May 2006 Location: What's left of NW Indiana Posts: 1,072	I dunno if they have them online, but I'm sure that somebody at plexi palace would have a metalface schematic.

07-24-2007, 04:55 AM	#5
dai h. Senior Member Join Date: May 2006 Posts: 777	try Dr.Tube also. If you're into Marshalls, I would buy a copy of The History of Marshall by Michael Doyle. It doesn't have everything but it's a good base. A lead amp from the period you describe would usually have a '69 type split cathode lead circuit with 100k feedback R, perhaps a linear taper for the volumes--not too different I would think (though nothing ever seemed to be set in stone with Marshalls--different parts brands, odd values, small variations, etc.).

09-02-2007, 09:36 PM	#6
roknroll Junior Member Join Date: Jun 2006 Posts: 7	http://www.drtube.com/schematics/marshall/2203u.gif

09-02-2007, 09:41 PM	#7
TD_Madden Senior Member Join Date: May 2006 Location: Manassas, VA Posts: 693	layout like this? http://www.ceriatone.com/images/layo...0Ceriatone.jpg

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