Krankin' the 50 watters!

64Vibroverb

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Does this count? :naughty:

IMG_2497_zps1nnal7ma.jpg
Oh ya, that counts :shock: Sure wouldn't mind seeing some more pics!
 

NotScott

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4 speaker outs - you don't see those too often.

1972?

It's a December 73 and one of the last PTP wired SLs.

FullSizeRender%203_zps9tpowotx.jpg


IMG_2068_zpsepylnoip.jpg


IMG_1581_zpsy6id2xii.jpg

I heard a few stories about this amp. At the end of 73, there were either some leftover assemblies or they ran out of printed boards so some of the late 73 and early 74 SLs were PTP wired. I have seen about a half dozen of these. I also heard that the backpanel configuration indicates it was intended for Canada, but then again, you know how it goes with Marshall lore. For you Marshall junkies, if you look closely at the inspection sticker, you will find the infamous Rosemary signature. Aside from a cap job, I replaced some components to make it a 69 SB spec and then did a few tweaks with the slope resistor, NFB, bright caps and mains transformer wiring to thicken it up a bit. It is a killer sounding Marshall. :slash:
 

jbrew1977

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Might not be a Marshall but 50w cranked is still 50w cranked... My Carvin V3M gets dimed more than it prolly should... Its glorious! It's painful! And it's oh so worth it!
 

Kris Ford

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It's a December 73 and one of the last PTP wired SLs.

FullSizeRender%203_zps9tpowotx.jpg


IMG_2068_zpsepylnoip.jpg


IMG_1581_zpsy6id2xii.jpg

I heard a few stories about this amp. At the end of 73, there were either some leftover assemblies or they ran out of printed boards so some of the late 73 and early 74 SLs were PTP wired. I have seen about a half dozen of these. I also heard that the backpanel configuration indicates it was intended for Canada, but then again, you know how it goes with Marshall lore. For you Marshall junkies, if you look closely at the inspection sticker, you will find the infamous Rosemary signature. Aside from a cap job, I replaced some components to make it a 69 SB spec and then did a few tweaks with the slope resistor, NFB, bright caps and mains transformer wiring to thicken it up a bit. It is a killer sounding Marshall. :slash:


4 outs means for England from all I've ever heard, and that is the opinion on the Marshall forum as well.:thumb:
My '78 JMP 2203 has 4 outs, and runs on EL34s, while American versions had 2 outs and 6550s.
 

NotScott

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4 outs means for England from all I've ever heard, and that is the opinion on the Marshall forum as well.:thumb:
My '78 JMP 2203 has 4 outs, and runs on EL34s, while American versions had 2 outs and 6550s.

Hmmmmmm, that's interesting as the power tranny was originally wired for 110V operation. Like I said, with old Marshalls, who knows.
 

Kris Ford

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Hmmmmmm, that's interesting as the power tranny was originally wired for 110V operation. Like I said, with old Marshalls, who knows.

That one sure is!
And I have it backwards..the 4 outs were for USA for a UL requirement..2 for England..long day lol..4 outs and a polarity switch=export (to USA version)
You can see the spot for the selector, but it sure isn't there. (the dot where it says MAINS...)
IMG_2497_zps1nnal7ma.jpg

Mine is selectable...I'll snap a pic later.
 

NotScott

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That one sure is!
And I have it backwards..the 4 outs were for USA for a UL requirement..2 for England..long day lol..4 outs and a polarity switch=export (to USA version)
You can see the spot for the selector, but it sure isn't there. (the dot where it says MAINS...)
IMG_2497_zps1nnal7ma.jpg

Mine is selectable...I'll snap a pic later.

That makes more sense to me. Thanks!
 

sonar

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That one sure is!
And I have it backwards..the 4 outs were for USA for a UL requirement..2 for England..long day lol..4 outs and a polarity switch=export (to USA version)
You can see the spot for the selector, but it sure isn't there. (the dot where it says MAINS...)
IMG_2497_zps1nnal7ma.jpg

Mine is selectable...I'll snap a pic later.

My '72 is also a 4 out...

and still my all-time favorite Marshall. I love "Krankin' the 50 watters!" but nothing sings like a fine tuned, 100 watt Super Lead.
 

FourT6and2

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I find 50 watters to sound meaner, more pissed off, but with sweeter top ends. I like them more than 100 watters. And not because they're quieter. But because I like the aggression they have. Not a Marshall, but my Chupacabra is one of the best amps I've had. Sounds fantastic with Greenbacks. Chupa on the left, Yeti on the right.

photo_by_haftelm-da2r2kd.jpg


[ame]http://www.youtube.com/watch?v=B24AsPXPv_c[/ame]
 

blackat

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I set mine with Master at 8, vol. at 9-9.5
4x12 Scumback PVC's
 

logen99999

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My Plexi is a modded '71 Traynor YBA-1. They're great stock and a few circuit tweaks is all that's required for some Plexi magic.

http://www.youtube.com/watch?v=qPIEzNvQgts

I have one of these, also modded for plexi specs.

It sounds absolutely monstrous but something about these transformers make it not quite plexi-ish.

I happen to like it better than a lot of plexis, personally. Very big thick leads from it. The top end is a bit smoother than a marshall as well. great for giant riff rock stuff!
 

Custom53

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Every amp I own is a 100 watter, except for my Soldano Hot Rod 50+..

 

Deed J

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One mod I like to do when cranking an amp, or a JMP 2204 for instance, is to swap the phase inverter tube for a 12at7 which is able to drive more current than a 12ax7. Since the power distortion is coming exclusively from the PI this part of the circuit is under less stress.
 

jaycoyoyo

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mmm 50-watt Marshalls nom nom

I'll play... 4210 combo built June 1982. Doesn't push air like a slant 4x12 but it's plenty for me.
10430596504_a81a40722c_b.jpg
 

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