Marshall 2203 REEEEEEEEEEE-work

[harddriver]

You must have noticed the difference between 6CA7s' and EL34's..................

They are quintessential ED tone IMHO...............

What are you running for preamp tubes?

V1 V2 V3?

[PLX]

You must have noticed the difference between 6CA7s' and EL34's..................

They are quintessential ED tone IMHO...............

What are you running for preamp tubes?

V1 V2 V3?

Some cheap-ass JJ's

What should I get for V1~3

[harddriver]

I tube rolled alot of new production tubes in my 69 against my NOS Sylvanias, Tungsram, RFT and Mullard Blackburn 12ax7's.

I found the Modern Tung Sol reissue sounded very close to the Sylvania Longplates...very close in V1. The Tung Sol's handle high gain and OD pedal better than a Sylvania that tend to get plate ring.

For V2 I used a Ruby AC5HG 9th genration Chinese was somewhat similar to the SYlvania and are bulletproof for the cathode follower. JJ's work fine here too.

For V3 I went with an NOS Sylvania so pick your favorite PI tube, Maybe a JJ longplate, regular JJ or Sovtek LPS, the V3 Driver tube isn't really a picky positions for tone but needs to be kinda robust like the V2 beause they work hard driving PI into the power section.

V1 is the most important for tone reason IMHO then V needs to be able handle the CF current and voltage abuse.

Sounds like you are liking what you are hearing............

For V1 I like the bright spankiness and clank of the Tung Sol and NOS Sylvania for ED stuff, if you find it too bright then go JJ then darken things up.

[PLX]

I tube rolled alot of new production tubes in my 69 against my NOS Sylvanias, Tungsram, RFT and Mullard Blackburn 12ax7's.

I found the Modern Tung Sol reissue sounded very close to the Sylvania Longplates...very close in V1. The Tung Sol's handle high gain and OD pedal better than a Sylvania that tend to get plate ring.

For V2 I used a Ruby AC5HG 9th genration Chinese was somewhat similar to the SYlvania and are bulletproof for the cathode follower. JJ's work fine here too.

For V3 I went with an NOS Sylvania so pick your favorite PI tube, Maybe a JJ longplate, regular JJ or Sovtek LPS, the V3 Driver tube isn't really a picky positions for tone but needs to be kinda robust like the V2 beause they work hard driving PI into the power section.

V1 is the most important for tone reason IMHO then V needs to be able handle the CF current and voltage abuse.

Sounds like you are liking what you are hearing............

For V1 I like the bright spankiness and clank of the Tung Sol and NOS Sylvania for ED stuff, if you find it too bright then go JJ then darken things up.

I've got a few NOS preamp tubes here..

Wondering if any would work in V1 ?







couple of Mullards

[harddriver]

Just start tube rolling and see what you like in V1. In the end you might like the JJ's that are already in there. If you are going for all out Ed then thrown that JAN Sylvania 12ax7 in V1 and see what it does. It'll be bright and clanky but it just oozes ED to my ears although the 2203 circuit it might start to get some plate ring with gain pushing it or it may not you never know.

Wizards amps are bright and he exclusively uses JJ's because they dampen the brightness and the short plate handle a ton of gain.

What is that second 12ax7 under the Sylvania? Almost looks like a Tungsram?

So what is your opinion on the 6CA7's versus the EL34's now that you have heard both in the amp?

[PLX]

Just start tube rolling and see what you like in V1. In the end you might like the JJ's that are already in there. If you are going for all out Ed then thrown that JAN Sylvania 12ax7 in V1 and see what it does. It'll be bright and clanky but it just oozes ED to my ears although the 2203 circuit it might start to get some plate ring with gain pushing it or it may not you never know.

Wizards amps are bright and he exclusively uses JJ's because they dampen the brightness and the short plate handle a ton of gain.

What is that second 12ax7 under the Sylvania? Almost looks like a Tungsram?

So what is your opinion on the 6CA7's versus the EL34's now that you have heard both in the amp?

I hated all the other preamp tubes I had in V1.. went back to the JJ and it sounds great again. I'll have to shop around and see what NOS preamp tubes I can locate.. maybe Antique Electronics Supply ?

Several of the ones I have are just mystery tubes - no printing, worn off, will never know.

I changed several things at the same time, so it's tough to say what made what happen. Lowering the screens filtering makes the amp feel spongier, more give, less stiff. Pulling two tubes lowered the volume and also added to the squishiness. The amp seems to have more touch response to it now.

I think the only thing I would even consider changing about this amp now would be trying some other preamp tubes.

[PLX]

I found the Modern Tung Sol reissue sounded very close to the Sylvania Longplates...very close in V1. The Tung Sol's handle high gain and OD pedal better than a Sylvania that tend to get plate ring.

this ?

https://www.vivatubes.com/new-tung-sol- ... cuum-tube/

[harddriver]

I found the Modern Tung Sol reissue sounded very close to the Sylvania Longplates...very close in V1. The Tung Sol's handle high gain and OD pedal better than a Sylvania that tend to get plate ring.

this ?

https://www.vivatubes.com/new-tung-sol- ... cuum-tube/

Yep that's them. I get my Ruby AC5HG chinese 12ax7's from Dougs tubes for V2. then you can stick that Sylvania in V3 and you're all set. You may end up still liking the JJ's PLX... sometimes JJ's just work great in some amps.

https://www.dougstubes.com/preamp-tubes ... 5.html?p=1

He also has some 80's Chinese 12ax7's (foil dimpled square getter) that are really good tubes, very durable and sounds great. All the amp companies used them in the 80's into the 90's. These have short plate and great for any amp and handle high gain like a champ, Mesa Boogie used these in all their amps.

[harddriver]

I keep hearing these JJ E83CC are killer tubes....

https://www.vivatubes.com/new-jj-e83cc- ... cuum-tube/

[PLX]

I keep hearing these JJ E83CC are killer tubes....

https://www.vivatubes.com/new-jj-e83cc- ... cuum-tube/

Those are exactly what I have in V1, V2 & V3.

I tried all my other preamp tubes last night, and I wound up putting the JJ's back in.