What to do

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jestaudio
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Joined: Sat Mar 12, 2011 4:12 pm
Location: UK

What to do

Post by jestaudio »

I,ve got a working Laney chassis with 4 el84s , a 30 watt output trannie and a toroidal mains tranny that belts out about 330 rectified 220 unrectified, loads of usefull parts,
I need a bit of inspiration on where to tacke it, el 84,s sugeest something with a marshall taste but is the trannie man enough for the job :)
All suggestions gratefully recieved
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Structo
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Location: Oregon

Re: What to do

Post by Structo »

Well you could build a 18 watt style amp accept use the 4 x EL84 output.
Be aware you need to use a different output transformer but the one that came with the Laney might work.
Tom

Don't let that smoke out!
Gaz
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Re: What to do

Post by Gaz »

Why a different OT?
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M Fowler
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Location: Walcott ND

Re: What to do

Post by M Fowler »

Isn't that Laney already a Marshall based circuit?

If it works I would just concentrate on changing up the circuit to your liking.
jestaudio
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Joined: Sat Mar 12, 2011 4:12 pm
Location: UK

Re: What to do

Post by jestaudio »

M Fowler wrote:Isn't that Laney already a Marshall based circuit?

If it works I would just concentrate on changing up the circuit to your liking.

its a bit of a winter project, stacks of corrosion on the board, scratchy pots etc(it had been stored in a garage) and in fairness it may be based on a marshall but it sounds like crud, even through my rcf powered cab which makes anything sound good :D
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Phil_S
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Location: Baltimore, MD

Re: What to do

Post by Phil_S »

There is a 36W design based on the Marshall 18W. If you aren't a member of the 18W forum, I can find the schematic for you. Rip out what's there, keep what's useful. Build another amp in it's place. If you have a good chassis and iron, you are more than half way there in terms of cost. IMO, it's just begging for the 36W, which is a 4x EL84 design.
Zippy
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Joined: Tue Apr 25, 2006 11:18 pm

Re: What to do

Post by Zippy »

You might also check out the TrainWreck "Liverpool" or "Rocket" options - see the TrainWreck subforum for schematics and layouts.
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Luthierwnc
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Location: Asheville, NC

Re: What to do

Post by Luthierwnc »

Best of both -- look at the Matchless DC30 and use the bottom half of the inverter. sh
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