Wiseblood

Hey Guys, I have a Marshall I am trying to identify. I have done my research and have referenced the Marshall serial number link here (http://www.superiormusic.com/page024.html). What I know for sure is:

"Super Lead 100W" is writtin on the back
"S/L 12XX1 is stamped on the back (no "X" of coarse, just blocking the S/N for privacy)
It has 4 power tubes and 4 inputs on the front

Based on it saying Super Lead 100W, and the 4 power tubes I can confirm it is 100W, also as per the above link the "S/L" also confirms it's a Super Lead. So everything makes sense, but what year is it? How can I tell? There is no date letter anywhere on this thing.

Can someone who is knowledgeable in this area assist?

I know pictures are worth a 1000 words but I sadly do not own a camera (or a cell phone with one). But I can provide more info if needed, I just couldn't think of anything else I could mention.

Thanks.

Marshall Amps

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janarn

A Plexi from 1968. 12-series.
If the serial number is 12301, then it's EVH old amp.
Pictures?

Wiseblood

Thanks for your reply.

I do not own a camera. I'm trying to get a hold of one to use...

How is it you can be sure it's a 1968?

janarn

The serial number is from the 12-series that started late'67/early '68.

Wiseblood

Gotcha, thanks.

What do you reckon one would be worth (ball park)?

janarn

What it could be worth?

How does it look?
How original is it?
Any mods?

From $2500 to $4500?

metromutt

As an evh obsessive can't you just give us the first number

Tbh, I've never really understood why people hold back on serial numbers, unless it's stolen or belongs to someone else, what damage can it cause?

Are you selling, I'm interested if it's genuine/original iron etc.

http://amparchives.com/album/Marshal...069%20028.html

Wiseblood

The first number is 1.

I was inquiring on behalf of someone and didn't want to provide info without consent.

My general rule why I don't post serial numbers is, it allows scammer to skim through postings and obtain info that they can in tern use to create a false post and try to trick someone in to buying and paying for something that doesn't exist. Just my point of view, I've seen it happen. Funny enough, I bought a Mesa amp on eBay and the seller put the serial number and then after I bought the amp and had already received it and was playing it I seen another dude (a scammer of coarse) try and list the same amp, serial number etc...

Thanks a lot for the info, I will direct the owner of this amp to visit the board.

Much appreciated!

CloudNine

Hey there, I'm also searching for the year of "birth" of my "Super Lead 100W"

The serial number on the back reads SL/A 1026X (again X for privacy) and according to the link Wiseblood postet earlier
(Superior Music - Marshall Amp Serial Numbers and Dates).

It's either built in 1969/70 because of the "A" after SL/, or from 1984 to 1992, because of the info given above
(From Jan 1984 to October 1992 the model letter first, then the date letter second, were before the serial number)

Does anyone got further info? Thx in advance.

PS: Luckily I got a camera, so here are some pictures:

Attached Images

	Front.jpg (90.0 KB, 38 views)
	Back.jpg (90.5 KB, 36 views)
	Serial.jpg (80.9 KB, 37 views)

Marshallhead

Cloud Nine, the A reference relates to metal panelled amps which have the letter stamped at the end of the serial number. The A after the SL/ part doesn't indicate 69/70, it's unrelated (but it's a common mistake to make).

Your amp has plexiglas panels and a rounded cabinet lip at the bottom of the front control panel, which narrows the dates down to spring 1969. However the super clean plexi panels you have give cause for concern, as it's fairly common to retrofit metal panel amps with Plexi panels to increase the value of the amp.

Post an inside pic or two if you can. Particularly the circuit board and the choke (the smallest of the three box-like transformers on top of the chassis).

CloudNine

Okay thanks for helping out, I made some pics of the "interieur".
I asked the guitar mechanic of my local store and found out that the plate on which the stuff is installed was much smaller before 1984, so that the plate was smaller than the box. And after 1984 they replaced it with plates that will take the complete space of the box.

Since mine has a wide plate, I don't think that it's from 1969, but here you go with some more pictures anyway, i'm still interested because mechanics can be wrong ;-)

Thanks in advance, CloudNine

PS: Since you probably need higher resolution images to read the details on the capacitors, resistors, etc. and the forum doesn't support files bigger than a few pixels, I took the liberty to upload it to a imagehoster, which allows bigger pictures.

pictures:
1 http://www.abload.de/img/173z4k.jpg
2 http://www.abload.de/img/2ugype.jpg
3 http://www.abload.de/img/38bzpy.jpg
4 http://www.abload.de/img/4n3l1w.jpg
5 http://www.abload.de/img/5vkl57.jpg
6 http://www.abload.de/img/69my00.jpg
7 http://www.abload.de/img/70pbc4.jpg
8 http://www.abload.de/img/891luy.jpg
9 http://www.abload.de/img/9d7lzc.jpg

janarn

It's a real Plexi from first halv of 1969.
The Mustard code I can see (D8 x) is from last quarter '68.

yladrd61

A clean original unmolested 1969 Plexi, very nice indeed !!!!!

johnfv

I posted the serial number from my '68 here, can't say I really understand the "big secret" either...

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My Amps: Marshall: '68 Plexi Super Tremolo 100, Class 5 head; Fender '65 blackface Showman, early 80s HiWatt 50, early 90s Dual Rectifier, Ceriatone: 18W TMB, 2204 HW, DZ30; Jet City: JCA20H and Pico Valve; Egnater Tweaker. Various Marshall and other cabs: 4x12, 2x12, 1x12
My Strats: early 80s '62 re-issue, '87 Strat plus, '10 EJ maple neck; Multiple Warmoth partscasters; Gibson: '08 Firebird V, '11 SG, '66 Melody Maker, '81 ES-347; various other guitars

CloudNine

Okay, thanks guys, I guess I'll go to my mechanic with the updated information and ask him, whether he still believes that it's not from 1969.

So the points you give are:
1. The D8 W is from late 1968 so it's from 1969 (what does mustard code mean?)

Are there any more characteristics with which you can prove that it's from 1969?

Also I dont really know, why I keep the serial of my amp a secret, but because everybody around does it, I just joined in

janarn

1. Marshall started with PTP-boards mid '73, so it's an earlier amp.

2. Marshall stopped using plexi panels mid '69. Yours have the plexi panels.

3. Mustardscodes starts with D8. D means fourth quarter, and 8 means '68.
Could be '78, but that doesn't fit with the rest of the amp.

4. The fuse holders are identical with the ones they started using in '69.

5. The serial number fits with the SL/A 10xxx series from '69.

6. The cabinet is also a typical '69 with rounded lip.

pleximaster

The serial numbers are not used in consecutive order and for instans 10XXX numbers are found from 67-69 on plexis. Most 69 in the 10XXX series have as mention before an A before but I have seen a couple of 69 without the A but they differs from the early ones as they have all cans on top of the chassis, big vent and round lip cabinets. In many cases I can find date codes on the Mullard caps for ibstans like b8 indication the second quarter of 1968. They are also applied differently. 10xxx can be stamped thin in black into the plexi panel and are found in 1967-1969. 10xxx can also be applied on a sticker on the chassi and the have a window through the clear plexipanel, this is only found in the lower 10XXX in 1966-67.12000 series are found with two different fonts a thinner and a thicker one.

One reason for the differencs in serialnumbers could be that they had different suppliers of panels and I have been told (don´t know for sure if its true) but that most panels were more or less handmade in the Marshall factory up till about 1967-68. The inverted letters applied on the clear plexi sheet, a layer of gold paint and then various coats of green to seal it in. I have seen some real plexipanels with just gold paint were they haven´t had the time to use the green.

best regards plexi

CloudNine

okay thanks for the info, I'll ask my local mechanic whether he still believes it and when he doesn't, I'll dye my hair like this:

CloudNine