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1973 Marshall Model 1917 / P.A. 20 - Does It Look All Original?

Dire Wolf

New member
Joined
Dec 20, 2006
Messages
2,745
I'm looking at this 20 watt Marshall head from 1973(Model 1917, serial # 7218E), which was designed as a P.A. head. I've seen these used as guitar amps - how good are they as guitar amps? Are there any mods that need to be done to convert it to a guitar amp?

Looking at the pics, does everything look original, especially the power and output transformers?

Also, what is the price range for these, $1500-2000?




















 

kerryboy

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Joined
Jun 20, 2002
Messages
1,195
It is most likely a European 220volt unit so you would need to bear that in mind if you live in the US.

In saying that, it does look like it has a voltage selector just above the mains lead on the inside of the amp.

From what I can see everything else looks okay.
 

kiwi burst

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Joined
Sep 19, 2006
Messages
81
It looks good- I have a slightly earlier version (serial number 01390) with a bulgin plug. Set it at 120 and run direct into my home electrical circuit. This is despite running other vintage amps always through a variac. Sounds great - a little more gain than an 18 watt and a little less dynamics. Favorite set up is through a reissue 18 watt single 12 inch cab. Of course sounds great through vintage 4 X 12 cabs but loud.
 

TM1

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Jun 27, 2003
Messages
8,190
This is just the P.A. version of the 20 watt heads. You can add a couple of parts to it to make it a "Lead" model. I'd have to get my schematic out, but not much difference..
Cool heads! Looks like it's an Export Model(to the U.S.). The Home market would have a Bulgin socket for the mains lead.
 

TM1

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Jun 27, 2003
Messages
8,190
What's the selector set to on their? It has a voltage selector for the Mains sitting on the top of the chassis.
 
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