******'s Mod

[Jeremy1283]

I found this looking on the internet. Is it true that this was done on the first album?
http://www.twistyneck.net/cm.html
I am still learning so please be patient.

[rgorke]

Is it true that this was done on the first album?

IMO, not likely. But there are many opinions.

[mr.twistyneck]

Agree. All first album theories are just - theories.

I like the C****m's Mod Theory, but my guess is that *perhaps* it was tried and then probably discarded due to non-scalability.

I like the Secret Pedal Theory - that's gotten a lot of people *really* close. The nice thing about the SPT is that there are many ways to goose the front end of an amp, and as a result there have been many great results using many different setups.

For example:

I'm The One using a Throbak Overdrive Boost and a 6 band MXR EQ, mixed in with the band: http://www.twistyneck.net/twangedband08 ... twisty.mp3

On Fire using the same setup: http://www.twistyneck.net/twistyOF08141 ... eqverb.mp3

******'s Mod demo'd live, skipped to the actual sound: http://www.youtube.com/watch?feature=pl ... pE0#t=232s

[VelvetGeorge]

There's always the theory that it's his stock plexi, variac'ed down to around 90V AC. EQ'ed on the console, slamming tape and compressed with a Urei limiter at mixdown. But that's no fun.

george

[Jeremy1283]

There's always the theory that it's his stock plexi, variac'ed down to around 90V AC. EQ'ed on the console, slamming tape and compressed with a Urei limiter at mixdown. But that's no fun.

george

https://www.youtube.com/watch?v=gBSoD0d6N_w
This is a 1976 recording.

[VelvetGeorge]

Great clip!

Nothing more than dimed plexi level of gain there IMO. There is some mid focus going on, might be an EQ pedal I guess, or just as likely: the mic was positioned over the cone of the speaker, rather than the dust cap.

george

[Jeremy1283]

Great clip!

Nothing more than dimed plexi level of gain there IMO. There is some mid focus going on, might be an EQ pedal I guess, or just as likely: the mic was positioned over the cone of the speaker, rather than the dust cap.

george

Then variaced down to control the volume? That is where in confused. His tone is killer and its not that loud.

[mr.twistyneck]

Hard to say exactly what he was using on this particular clip, or what his actual stage volume was. Agree with George that it sounds mostly like a dimed amp.

Using a Variac to just lower the input voltage doesn't do much to lower the volume IMHO - even if you're at 90 volts. I think - and don't quote me - that some have used Variacs for attenutation in between the head and the cab, but I don't recall hearing examples.

[Jeremy1283]

What tubes will stand up to variacing down to 90 volts and cranking the bias.. will the6ac7? the new ones
How long do the tubes last if you keep thi setup? 10 hrs or am I wrong

[rgorke]

What tubes will stand up to variacing down to 90 volts and cranking the bias.. will the6ac7? the new ones
How long do the tubes last if you keep thi setup? 10 hrs or am I wrong

IME, variacing down has a huge impact on volume. Been using the same Sylvania 6CA7s for about 4 years.

[Jeremy1283]

What tubes will stand up to variacing down to 90 volts and cranking the bias.. will the6ac7? the new ones
How long do the tubes last if you keep thi setup? 10 hrs or am I wrong

IME, variacing down has a huge impact on volume. Been using the same Sylvania 6CA7s for about 4 years.

Thats killer man
those are the real deal tubes? Where can i get a quad of them?

[Jeremy1283]

I think i will order a quad of new 6ca7s and see how long i get out of variacing them down. I play 4 hrs shows each weekend so i will just bring a backup head. Should be interesting:)
The chase continues. Lol

[emmjaydubya]

IME, variacing down has a huge impact on volume. Been using the same Sylvania 6CA7s for about 4 years.

Agreed, it brings the volume down quite a bit. I just biased my amp for 105v just a week ago after having it at 90v for a year and a half. Noticeably louder with more clarity (headroom) and not quite as much compression and sag. The EH 6CA7 quad has been fine at 90v for that long, no hiccups at all. Besides, they're just tubes. If they fail, you replace 'em! (unless they're Sylvanias! )

FYI, a dummy load in the other speaker jack will reduce volume as well. Sound will be affected, depending on load.

[Jeremy1283]

IME, variacing down has a huge impact on volume. Been using the same Sylvania 6CA7s for about 4 years.

Agreed, it brings the volume down quite a bit. I just biased my amp for 105v just a week ago after having it at 90v for a year and a half. Noticeably louder with more clarity (headroom) and not quite as much compression and sag. The EH 6CA7 quad has been fine at 90v for that long, no hiccups at all. Besides, they're just tubes. If they fail, you replace 'em! (unless they're Sylvanias! )

FYI, a dummy load in the other speaker jack will reduce volume as well. Sound will be affected, depending on load.

Thanks for your input guys. ou rock!!
I am gonna order a quad of EH 6ac7 tubes.
Question how do you know what to bias the amp at with a voltage of 100 or 90?

[efraser68]

Twisty killing it on the clips. If I remember the sound cuts out because a compressor plugin, right?