....

[screamindemon]

The cap I used in V1 is a Sprague 330uf Axis 25v.

 

[screamindemon]

ok, so i fired it up today and it sounds better. I had it out of the head shell last night and maybe that was causing some problems.

Doesn't seem to me humming at high gain now ! I think the squeal is gone too.

However it doesn't seem to have tightened up much.

 

[screamindemon]

The cap I used in V1 is a Sprague 330uf Axis 25v.

Ok, that's good.

Let us leave everything the way we have it right now, maybe change the tone stack resistor from the 47K to a 33K to tighten it up a bit.

Lets forget the 1meg and instead lets change the one wire with a shielded wire to prevent the squealing and interference or at least reduce it bigtime.

Here's a picture of the wire I'm talking about.

What gauge is that wire ? 16G

 

[screamindemon]

Will this work ?

http://www.mojotone.com/amp-parts/ampli ... vered-Wire

 

[toddbz]

-I love this thread!!!,... My hats off to both of ya, only thing that could of made it better would be clips along with the mod process.

-now I'm searching high and low for vintage mustard caps!!

I'm with you on that!

Even though I only understand a teeny fraction of what dudes are doing, I find myself captivated by the entire process.

 

[codyjarret]

-I love this thread!!!,... My hats off to both of ya, only thing that could of made it better would be clips along with the mod process.

-now I'm searching high and low for vintage mustard caps!!

I'm with you on that!

Even though I only understand a teeny fraction of what dudes are doing, I find myself captivated by the entire process.

Cheers guys.

 

[david simpson]

very nice!

 

[screamindemon]

I found some really nice shielded wire and replaced the existing one wire mod.

I definitely notice a difference. The amp has less audible hiss than before.

 

[screamindemon]

My girlfriend said my it's so big !

 

[Wagster]

Love that tone. Can you gig it at reasonable levels and still get the tone? I'd love to build a close of a Major with a PPMV and some tweaks.

Well I think I'm finished modding and tweaking this '68 Marshall Major 200 watt, I'm very happy with the way things turned out so far.
For the style of music I love to play most this '68 plexi is going to be my go-to.
It's a plug & play amp that cleans up great when you roll the guitar volume back and has tons of articulate gain on tap.

I've made a lot of recordings of this amp trying to get the sound right, so I'm sorry for all the wankfest recordings, but it's really helped me get this amp sorted out.

I hope my clips are interesting enough for you guys to enjoy.

Thank You & Cheers,

Michael

 

[codyjarret]

Love that tone. Can you gig it at reasonable levels and still get the tone? I'd love to build a close of a Major with a PPMV and some tweaks.

Well I think I'm finished modding and tweaking this '68 Marshall Major 200 watt, I'm very happy with the way things turned out so far.
For the style of music I love to play most this '68 plexi is going to be my go-to.
It's a plug & play amp that cleans up great when you roll the guitar volume back and has tons of articulate gain on tap.

I've made a lot of recordings of this amp trying to get the sound right, so I'm sorry for all the wankfest recordings, but it's really helped me get this amp sorted out.

I hope my clips are interesting enough for you guys to enjoy.

Thank You & Cheers,

Michael

Thank you!!
You can definitely gig with this amp head no problem.
This was recorded at TV listening volume but honestly if you back the gain off a bit and turn it up it sounds godly.
With my full stack of greenbacks breaking up and the KT88's sizzling it's quite the experience.

 

[screamindemon]

Dude ! That is just awesome.

Great playing ! and loving the tone !

 

[codyjarret]

Dude ! That is just awesome.

Great playing ! and loving the tone !

I greatly appreciate the kindness.

Cheers Bro!!

 

[screamindemon]

What do you use for a recording interface?

I have a Focusrite Pro 40. Work ok, I guess.

Need to get my software fixed.

 

[TremoJem]

MichaelR/T, what speakers are you using in the cab you mic'd for the two clips, Jem and Nuno axe's?

Thanks man.

 

[codyjarret]

MichaelR/T, what speakers are you using in the cab you mic'd for the two clips, Jem and Nuno axe's?

Thanks man.

In both clips I'm using Celestion G12M (greenbacks)

They're from around the early 90's.

 

[screamindemon]

Michael,
Spent some time with the 68 Metro plexi today. Currently specs are as per your Superlead drawing.
Except for the presence pot have not changed that yet.

She is sounding pretty good. I hope to have my recording software fixed this week and i can post clips.

Thanks, Brian

 

[screamindemon]

Update just changed the presence circuit, now I think she is in spec with your drawing.

 

[codyjarret]

Michael,
Spent some time with the 68 Metro plexi today. Currently specs are as per your Superlead drawing.
Except for the presence pot have not changed that yet.

She is sounding pretty good. I hope to have my recording software fixed this week and i can post clips.

Thanks, Brian

Update just changed the presence circuit, now I think she is in spec with your drawing.

I hope the recording setup gets sorted out, I'm looking forward to hearing this beast.

That's good news about the presence circuit. The whole NFB circuit should work a lot better for you now.

 

[Scallywag666]

I would love a Marshall Major.. Finding one is so hard!