Marshall plexi what year ?

pleximarshall · 07-04-2009, 06:28 PM

Pictures!

Picasa Web Albums - Miles - plexi

rockinr0ll · 07-04-2009, 07:31 PM

Do you know the serial number.

pleximarshall · 07-04-2009, 07:47 PM

If you see the serial number side on the back panel is gone so I hope some one can date it from the parts.

rockinr0ll · 07-04-2009, 07:53 PM

I think it is a really hacked up 1959 Metal Panel from the early '70s. This is just an educated guess but I can tell that it is at least earlier then 1972 because of the PTP (point to point) wiring. Looks like it has a master volume mod but the inside doesn't look as bad as the out side.

pleximarshall · 07-04-2009, 08:14 PM

IT WAS MODIFIED BY TIM CASWELL SOME YEARS AGO. 1967-69? MARSHALL PLEXI TREMOLO. This is what I'm told.

rockinr0ll · 07-04-2009, 08:21 PM

OIC are you trying to buy this or sell it?

pleximarshall · 07-04-2009, 08:34 PM

I just got it so it is not for sale.

rockinr0ll · 07-04-2009, 08:37 PM

Cool, how much did you get it for?

pleximarshall · 07-04-2009, 08:52 PM

a 77 strat + cash.

Marshallhead · 07-05-2009, 06:50 AM

It's a plexi tremolo model, from about 1968 or so. It's had a big power transformer burnout at some point, judging from the brown gunk under the chassis, but the PT in there now is thankfully the right kind/era.

janarn · 07-05-2009, 10:44 AM

The layout of the amp is pre '69. Probably late '67 or early '68.
That brown gunk could also come from a blown filtercap.
Yes, they can explode, and that is what I belive happend to one of my amps,
and there is threads about an exploding filtercap in an original JTM-45.
That means that the PT can be original, if it's nothing else that tell us
that it is changed

pleximarshall · 07-05-2009, 02:13 PM

Is the amp a JMP?

janarn · 07-05-2009, 03:03 PM

Yes, should be an early JMP.
The JTM-45/100 had a large 3" lay down transformer,
and a 2" output transformer, both made by Drake.

pleximarshall · 07-05-2009, 07:36 PM

Is the power indicator light stock ? Is this amp a USA import ? Any one make the back gold aluminum panel for 100 watt tremolo ? And any one deal with there people ?

Marshall Amps

janarn · 07-06-2009, 05:05 AM

The amp is an USA export amp. That's why it has a polarity switch.
I don't think the indicator light is original, and there is a lot of things
done to your amp.
I thought you should have a plexi replacement backplate.
This amp should have plexiglass front and back.
You can get almost all parts to your amp, and you can get some
of them original, and some as repro parts.
Metro amp makes very good Plexi replicas, and they know all
about every part you'll need.
Plexi Palace also have some great parts for old Marshalls.
You should ask them about what you should do to your amp.
A lot of guys there have parts, and know where to get them.
You should ask for help at the Metro Amp forum, or the forum
at Plexi Palace.

pleximarshall · 07-08-2009, 07:35 PM

Yep back is plexi. My bad on the aluminum.

07-04-2009, 06:28 PM	#1 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Marshall plexi what year ? Pictures! Picasa Web Albums - Miles - plexi __________________ Remember, Its always better to be judged by 12, than being carried by six.

07-04-2009, 07:31 PM	#2 (permalink)
rockinr0ll Senior Member Join Date: Feb 2009 Posts: 1,602	Re: Marshall plexi what year ? Do you know the serial number.

07-04-2009, 07:47 PM	#3 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Re: Marshall plexi what year ? If you see the serial number side on the back panel is gone so I hope some one can date it from the parts. __________________ Remember, Its always better to be judged by 12, than being carried by six.

07-04-2009, 07:53 PM	#4 (permalink)
rockinr0ll Senior Member Join Date: Feb 2009 Posts: 1,602	Re: Marshall plexi what year ? I think it is a really hacked up 1959 Metal Panel from the early '70s. This is just an educated guess but I can tell that it is at least earlier then 1972 because of the PTP (point to point) wiring. Looks like it has a master volume mod but the inside doesn't look as bad as the out side.

07-04-2009, 08:14 PM	#5 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Re: Marshall plexi what year ? IT WAS MODIFIED BY TIM CASWELL SOME YEARS AGO. 1967-69? MARSHALL PLEXI TREMOLO. This is what I'm told. __________________ Remember, Its always better to be judged by 12, than being carried by six.

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07-04-2009, 08:21 PM	#6 (permalink)
rockinr0ll Senior Member Join Date: Feb 2009 Posts: 1,602	Re: Marshall plexi what year ? OIC are you trying to buy this or sell it?

07-04-2009, 08:34 PM	#7 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Re: Marshall plexi what year ? I just got it so it is not for sale. __________________ Remember, Its always better to be judged by 12, than being carried by six.

07-04-2009, 08:37 PM	#8 (permalink)
rockinr0ll Senior Member Join Date: Feb 2009 Posts: 1,602	Re: Marshall plexi what year ? Cool, how much did you get it for?

07-04-2009, 08:52 PM	#9 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Re: Marshall plexi what year ? a 77 strat + cash. __________________ Remember, Its always better to be judged by 12, than being carried by six.

07-05-2009, 06:50 AM	#10 (permalink)
Marshallhead Member Join Date: Jun 2009 Posts: 45	Re: Marshall plexi what year ? It's a plexi tremolo model, from about 1968 or so. It's had a big power transformer burnout at some point, judging from the brown gunk under the chassis, but the PT in there now is thankfully the right kind/era.

07-05-2009, 10:44 AM	#11 (permalink)
janarn Senior Member Join Date: Aug 2008 Posts: 491	Re: Marshall plexi what year ? The layout of the amp is pre '69. Probably late '67 or early '68. That brown gunk could also come from a blown filtercap. Yes, they can explode, and that is what I belive happend to one of my amps, and there is threads about an exploding filtercap in an original JTM-45. That means that the PT can be original, if it's nothing else that tell us that it is changed

07-05-2009, 02:13 PM	#12 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Re: Marshall plexi what year ? Is the amp a JMP? __________________ Remember, Its always better to be judged by 12, than being carried by six.

07-05-2009, 03:03 PM	#13 (permalink)
janarn Senior Member Join Date: Aug 2008 Posts: 491	Re: Marshall plexi what year ? Yes, should be an early JMP. The JTM-45/100 had a large 3" lay down transformer, and a 2" output transformer, both made by Drake.

07-05-2009, 07:36 PM	#14 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Re: Marshall plexi what year ? Is the power indicator light stock ? Is this amp a USA import ? Any one make the back gold aluminum panel for 100 watt tremolo ? And any one deal with there people ? Marshall Amps __________________ Remember, Its always better to be judged by 12, than being carried by six.

07-06-2009, 05:05 AM	#15 (permalink)
janarn Senior Member Join Date: Aug 2008 Posts: 491	Re: Marshall plexi what year ? The amp is an USA export amp. That's why it has a polarity switch. I don't think the indicator light is original, and there is a lot of things done to your amp. I thought you should have a plexi replacement backplate. This amp should have plexiglass front and back. You can get almost all parts to your amp, and you can get some of them original, and some as repro parts. Metro amp makes very good Plexi replicas, and they know all about every part you'll need. Plexi Palace also have some great parts for old Marshalls. You should ask them about what you should do to your amp. A lot of guys there have parts, and know where to get them. You should ask for help at the Metro Amp forum, or the forum at Plexi Palace.

07-08-2009, 07:35 PM	#16 (permalink)
pleximarshall Member Join Date: Jun 2009 Location: California 93065 Posts: 32	Re: Marshall plexi what year ? Yep back is plexi. My bad on the aluminum. __________________ Remember, Its always better to be judged by 12, than being carried by six.

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