Variac a Super Lead instead of attenuating

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rgalpin
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Re: Short clip test

Post by rgalpin » Thu Mar 19, 2015 4:05 pm

Pasian4life wrote:Is that clip brown? Is it cranked plexi, 2203, pedals, or something else? Curious what other ppl think.
two things that make it hard to tell what you have there is the verb which is kind of flooding out the nuances of the tone - and the other thing is the technique you are using is just not aggressive enough to hear if the amp will respond the way an ed type browned tone would do.

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Re: Pasian4life

Post by JimiJames » Thu Mar 19, 2015 4:17 pm

Pasian4life

Stop with the " cut 'n paste" and undermining members of this amp builders forum with rhetoric.

Please.

Thank You.
RIP Mark Abrahamian-rockstah -classmate/roommate
RIP Ben Wise -StuntDouble- comrade-in-arms

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Re: Variac a Super Lead instead of attenuating

Post by Pasian4life » Thu Mar 19, 2015 4:36 pm

Sorry, for whatever undermining rhetoric means. I have 2 metro amp builds. That article was not free and I was just sharing. Good point about aggressive right hand tech. That's one of the issues I find with 9-40 stings. It's easier to strike them sharp/flat whichever it is... Just another amazing find with Ed... He was agressive with both hands but not all the time.

Basically I am sharing my experiences and opinions. Helping others and getting their opinion on the sound I'm getting.

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Re: Variac a Super Lead instead of attenuating

Post by rgalpin » Thu Mar 19, 2015 4:52 pm

P4Life - it's all just a little out of context. In order to establish a context for your audience here at Metro, I would spend some time reading posts and seeing where we are at and how we got here. It's been a really long involved trip. And it's all documented here. Just wanting to explain the reaction that you might run into with that kind of a copy-paste post. Hope you hear that as intended - not meant to bust balls. :vh:
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Re: Variac a Super Lead instead of attenuating

Post by rgalpin » Thu Mar 19, 2015 5:01 pm

one little disclaimer... i actually did not read much of what was copy and pasted because as soon as i realized that it read like a magazine article, i lost interest. my snap judgment on the whole thing - but anyway - let's just get these amps opened up and start playing around and see what we can get! that's why i'm here - please forgive the editorial sideshow on my part. BACK TO BIDNESS!! :shred:
Last edited by rgalpin on Thu Mar 19, 2015 5:15 pm, edited 1 time in total.

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Re: Variac a Super Lead instead of attenuating

Post by Tone Slinger » Thu Mar 19, 2015 5:08 pm

Hey Rob, what brand of transformers are in your amp for the clip ? Is it the '74 Super Lead you got and put the Metro board in with the stock Dagnalls ?
Rip Ben Wise (StuntDouble) & Mark Abrahamian (Rockstah)

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Re: Variac a Super Lead instead of attenuating

Post by rgalpin » Thu Mar 19, 2015 5:10 pm

Tone Slinger wrote:Hey Rob, what brand of transformers are in your amp for the clip ? Is it the '74 Super Lead you got and put the Metro board in with the stock Dagnalls ?
Yes. Those are original transformers from the '74. And here is the current state of the board.
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Re: Variac a Super Lead instead of attenuating

Post by Tone Slinger » Thu Mar 19, 2015 6:48 pm

Sweetness :rock:
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Re: Variac a Super Lead instead of attenuating

Post by mightymike » Thu Mar 19, 2015 7:37 pm

Strat78 wrote:
Pasian4life wrote:Also, in the early days he was trying to get that sound at lower volumes (smaller venue) when they hit the large venues he is trying to get more volume. One thing that did not change was his amazing skills.
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Re: Variac a Super Lead instead of attenuating

Post by rockgod212 » Fri Mar 20, 2015 12:12 am

hey all, some question's about using a variac.

1. do I need to rebias the amp the target voltage, say dropping wall voltage from 125 to say 115 or 110v?
2. can I set the variac and run a power strip to run multiple amps off the variac?

I ask, because I really want to get a variac, im tired of these insane wall voltage fluctuations.
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Re: Variac a Super Lead instead of attenuating

Post by Strat78 » Fri Mar 20, 2015 9:53 am

rockgod212 wrote:hey all, some question's about using a variac.

1. do I need to rebias the amp the target voltage, say dropping wall voltage from 125 to say 115 or 110v?
2. can I set the variac and run a power strip to run multiple amps off the variac?

I ask, because I really want to get a variac, im tired of these insane wall voltage fluctuations.
You should just get a variac and get your plate voltages in the 410v range and bias from there. If the wall fluctuates from there your amp should be safe. Even bias around 5 to 10% higher than the target just to fill out the tone a bit especially if you are variacing the plates down to 380 or so.
Each amp has it's sweet spot, so I would run each amp with it's own variac nothing else, inserting a power bar sounds like trouble.

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Re: Variac a Super Lead instead of attenuating

Post by rockgod212 » Fri Mar 20, 2015 10:10 am

ok thanx for the advice, I will find one and give it a shot. any particular brand to get or stay away from? I see a lot of used ones on ebay, kinda looking at one that's in a box case. looks good, just not sure about brand, what about amp rating should i look for with a variac?


Strat78 wrote:
rockgod212 wrote:hey all, some question's about using a variac.

1. do I need to rebias the amp the target voltage, say dropping wall voltage from 125 to say 115 or 110v?
2. can I set the variac and run a power strip to run multiple amps off the variac?

I ask, because I really want to get a variac, im tired of these insane wall voltage fluctuations.
You should just get a variac and get your plate voltages in the 410v range and bias from there. If the wall fluctuates from there your amp should be safe. Even bias around 5 to 10% higher than the target just to fill out the tone a bit especially if you are variacing the plates down to 380 or so.
Each amp has it's sweet spot, so I would run each amp with it's own variac nothing else, inserting a power bar sounds like trouble.
"purple power rules"

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Re: Variac a Super Lead instead of attenuating

Post by rockgod212 » Fri Mar 20, 2015 10:29 am

well I took the plunge and bought a used power stat 0-132v@3 amp variac off ebay $90.00 total- not a bad price, looks nice as its already in a box type case. I cant wait to try it out with my new 50watt el34 plexi build. should be exactly what I was looking for. :mrgreen:
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Re: Variac a Super Lead instead of attenuating

Post by rgalpin » Fri Mar 20, 2015 1:16 pm

rockgod212 wrote:well I took the plunge and bought a used power stat 0-132v@3 amp variac off ebay $90.00 total- not a bad price, looks nice as its already in a box type case. I cant wait to try it out with my new 50watt el34 plexi build. should be exactly what I was looking for. :mrgreen:
I'd be curious to see the box type case. Carrying the variac around without proper casing has always kind of bothered me. Do you have a link or a pic of it?

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Re: Variac a Super Lead instead of attenuating

Post by Strat78 » Fri Mar 20, 2015 2:05 pm

Here is the exact one Edward used and it looks mint. All things considered, the price is a steel!
http://www.ebay.com/itm/Ohmite-Cat-No-V ... 4ae15c27c0
Oh, I just found this old clip with a variac dialed way down with the bias calculated for a plate voltage of 380v. I remember not liking the nasally tone, but now I kind of dig it. Also, this was George's 68 kit right off the bench pretty much, what a life changer those kits were for allot of us!
http://soundclick.com/share.cfm?id=9665912

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