Marshall 1974 JMP 50 Watts - no MK II?

Matt81 · 04-07-2010, 08:11 PM

Hi there,

I was offered a 1974 JMP 50W head. Looks good so far, only one thing that looks strange to me:
There's no MK II, super lead, pa or whatsoever label left hand side of rear panel above "made in england by ..."
Serial no is S/A 2xx2F, PCB, metal panel, European model.

Were there non-MK II models manufactured in 1974? Any experience and/or advices before buying aside from testing?

Marshallhead · 04-08-2010, 12:55 PM

50 watt 4 input heads only ever had MKII on the back, no other printed model details, and that came in about 73/74 - it normally coincides with a PCB inside, but not a problem if it doesn't appear. Some previous owner may even have polished it off as the writing comes off too damn easy if you use metal polish.

Matt81 · 04-08-2010, 03:58 PM

Hey, thanks for the reply! I've attached some pics the vendor told me, it would be a '74 1987 Lead JMP.

Are these good amps?

Marshallhead · 04-09-2010, 01:48 PM

...and he's wrong, it's a bass model - I can tell from the shared V1 cathode and no brigjt cap on Volume 1 pot, but a bright cap in the channel 1 mixer resistor position. Notice how there's a little torn off bite from the inspection sticker just where it would have said "BASS"? Naughty!

Good news is, it's still a great amp.

Matt81 · 04-10-2010, 04:25 PM

Hey thanks again! Would you recommend buying it? Price still is a little high - 1200 EUR (1600 USD)... but this it what is charged for early to mid 70s Marshalls...

Clammy · 04-14-2010, 04:30 PM

I have a 1977 1986 head like this. Essentially the exact same amp as you're looking at with later cosmetics. The thing RIPS!!!! The bass models have a chunkier bottom end, and like to be pushed!

Cheers!

dreyn77 · 06-04-2012, 05:27 AM

did yah get it matt? I got it!

Rogie · 06-13-2012, 11:18 PM

The test date on the inspection sticker looks like the date is a `82

04-07-2010, 08:11 PM	#1 (permalink)
Matt81 Junior Member Join Date: Apr 2010 Posts: 3	Marshall 1974 JMP 50 Watts - no MK II? Hi there, I was offered a 1974 JMP 50W head. Looks good so far, only one thing that looks strange to me: There's no MK II, super lead, pa or whatsoever label left hand side of rear panel above "made in england by ..." Serial no is S/A 2xx2F, PCB, metal panel, European model. Were there non-MK II models manufactured in 1974? Any experience and/or advices before buying aside from testing?

04-08-2010, 12:55 PM	#2 (permalink)
Marshallhead Senior Member Join Date: Jun 2009 Posts: 678	Re: Marshall 1974 JMP 50 Watts - no MK II? 50 watt 4 input heads only ever had MKII on the back, no other printed model details, and that came in about 73/74 - it normally coincides with a PCB inside, but not a problem if it doesn't appear. Some previous owner may even have polished it off as the writing comes off too damn easy if you use metal polish.

04-09-2010, 01:48 PM	#4 (permalink)
Marshallhead Senior Member Join Date: Jun 2009 Posts: 678	Re: Marshall 1974 JMP 50 Watts - no MK II? ...and he's wrong, it's a bass model - I can tell from the shared V1 cathode and no brigjt cap on Volume 1 pot, but a bright cap in the channel 1 mixer resistor position. Notice how there's a little torn off bite from the inspection sticker just where it would have said "BASS"? Naughty! Good news is, it's still a great amp. topcat 70 likes this.

04-10-2010, 04:25 PM	#5 (permalink)
Matt81 Junior Member Join Date: Apr 2010 Posts: 3	Re: Marshall 1974 JMP 50 Watts - no MK II? Hey thanks again! Would you recommend buying it? Price still is a little high - 1200 EUR (1600 USD)... but this it what is charged for early to mid 70s Marshalls...

04-14-2010, 04:30 PM	#6 (permalink)
Clammy Senior Member Join Date: Feb 2010 Posts: 1,862	Re: Marshall 1974 JMP 50 Watts - no MK II? I have a 1977 1986 head like this. Essentially the exact same amp as you're looking at with later cosmetics. The thing RIPS!!!! The bass models have a chunkier bottom end, and like to be pushed! Cheers!

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06-04-2012, 05:27 AM	#7 (permalink)
dreyn77 Banned Join Date: Feb 2012 Posts: 996	Re: Marshall 1974 JMP 50 Watts - no MK II? did yah get it matt? I got it!

06-13-2012, 11:18 PM	#8 (permalink)
Rogie Junior Member Join Date: Apr 2012 Posts: 19	Re: Marshall 1974 JMP 50 Watts - no MK II? The test date on the inspection sticker looks like the date is a `82

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