Amp Build Gas - 18W - GuitarTalk Community

Amp Build Gas - 18W

TomCat

So I have finally decided to start the build on my Marshall 18W.

Going with the 1973 JMP Lead & Bass Circuit. Like the idea of the tremelo.
No tone stack.....in line with the original design. just the basic tone knob for both channels.

The original was a combo but I want to go the head route again with this one.....more options with cabs

Busy with the turret board/chassis layout at the moment.

I'll start posting pics as things develop...... ? ? ?

AlanRatcliffe

Great! Looking forward to it...

TomCat

Alrighty......been busy over the weekend...... ? ?

Pretty much got the overall layout down. A few small changes are needed to the layout and then check that all is as it should be.....

Also managed to det the chassis layout down.....that was not an easy task as dimension and measurement info on the 18W is scarce.....the 18watt.com download area is currently not functioning so little help from there ATM...... >☹ >☹

I've already been thinking about some mods...... :-[ :-[.....and I haven't even guilt the thing yet...... ??? ???

Anyhoooo!!!.....I'll pop what I've done so far up here as soon as I've checked my layout and popped some images on PB.......

DDR4LYF

That's cool, just like, "Hey, I want a 1973 JMP, I'll just build one myself" So cool 8)
I hope it sounds awesome!

lapdawg

I have been looking for 18watt.com resources. You'll see my comment on the wait for the section to be resumed.

I have managed to find a few things lying around. I am looking at Richie's improved tremolo. Don't know if you've seen that.
I am going to build 3 combos & electronics for 2 - one for me & one for a friend. I want to try some variations on cabs so there'll be one left over.

We all have different needs / preferences, but I think the 18w combo is very practical & you can still plug it into different cabs - you are just stuck with a default.
I am considering making one of the cabs a 2x10. It might be a nice comparison.

EZ has given me a few pointers & I am a VVR believer after hearing the one put in Singemonkey's 18w lite. I am still getting my head around VVR & tremolo channel. I think he's away at the moment

I am doing my research, so lets trade notes & resources. Right now, I'm better at cabs, so can advise you there if you need.

I found this link to a whole bunch of resources: http://www.rh-tech.org/public/. There's an 18watt section there.

Also, I'd be interested in sharing shipping costs of parts. PM me if you want to discuss.

Waiting for your layouts, pics etc...

Attila

My 2c Lapdawg.

a few options:

reasonably priced parts http://www.amplifiedparts.com/ and a good selection

or

Ask Benji or Karel to put a kit together for you..... saves a ton of pain with parts, transformers, hardware, chassis, drilling and dealing with multiple suppliers

and then of course you make a pretty mean cabinet yourself

I found that one can easily get overwhelmed with all the options and mods, my suggestions is select an design, get it up and running then experiment with smoothing and wizz bang cork sniffing stuff thereafter....