S.I.R. 100W SuperLead Schematic pt. II

[rockgod212]

that's what I thought it sounded like. cone cry.

the metal oxides should be used for the droppers, use CF for plates, cathodes, CF, NFB, etc.

[BRMSlash]

Interesting.... Yeah I guess it could be cone cry as the effect appears to be only noticeable at high volume. I'm running a 50w amp through a 2x12 closed back cab with Celestion Classic Lead 80's, so I wouldn't have thought I'd be pushing the speakers too hard, although it's still damn loud. Maybe the cabinet could also be contributing by resonating at a natural frequency or something.

[BRMSlash]

the metal oxides should be used for the droppers, use CF for plates, cathodes, CF, NFB, etc.

Thanks, yeah most of my amp is carbon film. I've got carbon composition on the CF cathode (820R), the NFB and preamp B+ droppers as I liked the tone better.

[rockgod212]

yep I bet that's it, a el34/6ca7 2203+ through cl80's is one brite sounding mother, im running a 50watt plexi through them. I run the presence off unless im using the .68u tames it a bit, but still brite as hell. try reducing your brite cap over the gain pot, that might help some. I tend to like a 780p with el34's instead of the full 1n. I would also run 47k@8ohm tap.

Interesting.... Yeah I guess it could be cone cry as the effect appears to be only noticeable at high volume. I'm running a 50w amp through a 2x12 closed back cab with Celestion Classic Lead 80's, so I wouldn't have thought I'd be pushing the speakers too hard, although it's still damn loud. Maybe the cabinet could also be contributing by resonating at a natural frequency or something.

[syscokid]

WTF?

The last post on this thread was 22 days ago?

It must be the Apocalypse...

[BRMSlash]

I noticed the same thing I was going to break the silence, but I'm waiting on a couple more parts to arrive. So far I've changed out all the mica caps to X5F ceramics, except for the PI fizz cap which is a C0G. I've also been playing around with cathode bypass cap on the first and fourth stages. The next step is to re-tweak the presence cap/nfb.

One other hold up is that I need to re-fret my guitar after my 3 year old decide to take to it with a hammer from my nearby tool bag. The 12th to 14th frets of the G and B strings now have a nice slice in them from where the strings have impacted.

[syscokid]

I noticed the same thing I was going to break the silence, but I'm waiting on a couple more parts to arrive. So far I've changed out all the mica caps to X5F ceramics, except for the PI fizz cap which is a C0G. I've also been playing around with cathode bypass cap on the first and fourth stages. The next step is to re-tweak the presence cap/nfb.

One other hold up is that I need to re-fret my guitar after my 3 year old decide to take to it with a hammer from my nearby tool bag. The 12th to 14th frets of the G and B strings now have a nice slice in them from where the strings have impacted.

That's pretty amazing that you have a 3 year old who's already experimenting with different "tapping" techniques...

[bennyx]

https://www.facebook.com/martina.deval/ ... nref=story

#36 with greenback and 34 setting...........no added boost

[herbvis]

THat sounds really authentic to me. Your playing is really good as well as always. That definatly helps

[BRMSlash]

Yeah, sounds nice.

[bennyx]

thanks guys

[Unique]

...crickets...

[neikeel]

...crickets...

With over 9,700 posts and a lot of amps built it's not really surprising

[CoffeeTones]

Well, let me rev it back up. I know it sounds crazy, but I met a guy that has been playing for about 25 years. From what he describes and is supposed to bring me, he may have the SIR #36. If it turns out to be so, I'll be sure to let everyone know. I don't have it or the serial number yet. It's also possible that it is not so, but I don't think anyone knows where that amp went, do they?

[ezs]

OMG!