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Discussion in 'The Workbench' started by NewReligion, Aug 22, 2019.
used 5150iii 50w... it costs the same of a new origin 50 and deliver the goods.
This is my goal. Just been busy with JMP/JCM’s
Too fizzy for my taste.
Calling all tech heads, my 20 head is the shop but the tevhnis on holiday, so I cant access it.
I'm tracing the amp and drawing a schematic up for it, but with limited pictures to go on and not able to get the bpardnout and turn it over, it's slow going....
I'd like to ask some help.
Can any of you whom don't mind getting a screwdriver out and just opening it up, if you wouldn't mind, could you take some clearer, close up pictures of each of the valves and the components around them? I'm struggling to see the bands so I can work out what they each are, and confirm their correspondence to the circuit?
Thank you to anyone who can help with any of this. You would then all be able to view a draft schematic of these amps...
IMO Not all Gain Structures are equal. Most I find to be fizzy. I will leave it at that.
But if you know a Marshall service center, you might be able to pay off the technician and bribe him into getting the schematic for you.
(try this first: bribe a tech)
Other than this, it's pretty hard to get schematics for recent release amps and you can understand why.
2. If you call this guy and ask him really nicely he might email the schematic to you. He has sent me schematics occasionally.
Kevin (Kdog) Drury
Marshall USA Service
1000 Corporate Grove Dr.
Buffalo Grove, IL 60089
Did it work? Asking for a friend, as he tried his "friends" at Marshall, Bletchley, MK, and no luck either... :-(