George saw Ed's amp? Spill some beans Mr. Velvet!

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master keeper
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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by master keeper » Fri Oct 05, 2012 2:46 am

Ruben wrote:
bmf5150 wrote:These specs George ???

Split cathode V1a 250uF/820,V1b .68/820
All coupling caps are 0.022uF,Bright channel coupling cap is 0.0022uF

470k mixer resistors
500pf [red out of 69 amp] mixer bypass cap
Bypass cap on V2a is .68uF and a 220uf to 470uf
33k/560pF lemco tone stack combo
100k NFB resistor at 4 ohm tap
220k bias splitter resistors
0.1 uF cap on presence control
.022uf output couplers

filtering is
2] 100uf's f&t in series mains
2] 32uf's f&t in series screens
1]100uf lcr phase inverter
1] dual 33 x 33 f&t preamp

So, to be sure, THESE are the specs of Ed's Superlead?
My plexi 12267 has the same specs apart from the 100k NFB. My amp has the 47k on the 4 ohm tap. It's an all original red dye amp, so there must have been a few of that spec back in the day.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by mapat » Fri Oct 05, 2012 12:01 pm

master keeper wrote:
Ruben wrote:
bmf5150 wrote:These specs George ???

Split cathode V1a 250uF/820,V1b .68/820
All coupling caps are 0.022uF,Bright channel coupling cap is 0.0022uF

470k mixer resistors
500pf [red out of 69 amp] mixer bypass cap
Bypass cap on V2a is .68uF and a 220uf to 470uf
33k/560pF lemco tone stack combo
100k NFB resistor at 4 ohm tap
220k bias splitter resistors
0.1 uF cap on presence control
.022uf output couplers

filtering is
2] 100uf's f&t in series mains
2] 32uf's f&t in series screens
1]100uf lcr phase inverter
1] dual 33 x 33 f&t preamp

So, to be sure, THESE are the specs of Ed's Superlead?
My plexi 12267 has the same specs apart from the 100k NFB. My amp has the 47k on the 4 ohm tap. It's an all original red dye amp, so there must have been a few of that spec back in the day.
What does your amp sound like?

:listen:

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by dirtycooter » Fri Oct 05, 2012 1:06 pm

Your OT size?

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by rgorke » Fri Oct 05, 2012 1:21 pm

master keeper wrote:
Ruben wrote:
bmf5150 wrote:These specs George ???

Split cathode V1a 250uF/820,V1b .68/820
All coupling caps are 0.022uF,Bright channel coupling cap is 0.0022uF

470k mixer resistors
500pf [red out of 69 amp] mixer bypass cap
Bypass cap on V2a is .68uF and a 220uf to 470uf
33k/560pF lemco tone stack combo
100k NFB resistor at 4 ohm tap
220k bias splitter resistors
0.1 uF cap on presence control
.022uf output couplers

filtering is
2] 100uf's f&t in series mains
2] 32uf's f&t in series screens
1]100uf lcr phase inverter
1] dual 33 x 33 f&t preamp

So, to be sure, THESE are the specs of Ed's Superlead?
My plexi 12267 has the same specs apart from the 100k NFB. My amp has the 47k on the 4 ohm tap. It's an all original red dye amp, so there must have been a few of that spec back in the day.
Please post some pictures of the inside of the chassis!!!!
"If you make a mistake, do it twice and smile and let people think you meant it." Jan Van Halen.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by Tazin » Fri Oct 05, 2012 2:36 pm

'Master Keeper's' amp is shown over at AmpArchives.com in the Super Lead section. His OT is the standard Dagnall C1998.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by Strat78 » Fri Oct 05, 2012 4:33 pm

Did you relace all the wire with 7/30 22awg?
Last edited by Strat78 on Sat Feb 09, 2013 10:56 am, edited 2 times in total.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by dirtycooter » Fri Oct 05, 2012 4:43 pm

Anyone on the iron as we speak doin some tweaking in this direction? I do wanna know what these specs feel and sound like. I think this is gonna definitly clear up alot of smoke and wasted guess work now. We got some solid reference unlike when this all started so I can only imagine what the next month or two of clips will follow will be like. And the pickup chase is gonna narrow down too because of this. The variables are slowly becoming constants finally.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by vanhalen5150 » Fri Oct 05, 2012 4:45 pm

#12267

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by vanhalen5150 » Fri Oct 05, 2012 4:47 pm

#12343

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by Tazin » Fri Oct 05, 2012 5:17 pm

Strat78 wrote:Dave, was the death cap still in place? Also, did the amp have a little tag board for the voltage taps?
Since Ed's amp was a USA export it would have come with the internal little tag board for the voltage taps.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by rgorke » Fri Oct 05, 2012 10:17 pm

Look at all those pretty Iskra's!!!

It appears that and additional cap (220-330) on V2a must have been a mod.

And, no 1 meg on the inputs, unless I'm not seeing it.
"If you make a mistake, do it twice and smile and let people think you meant it." Jan Van Halen.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by vanhalen5150 » Sat Oct 06, 2012 6:38 am

I noticed that as well Roger, having that 1 Meg to ground causes some of your signal to ground correct? With it's absence, you get everything from your guitar going into the input stage?
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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by bmf5150 » Sat Oct 06, 2012 7:32 am

Those specs I posted are the specs Dave Friedman set the amp up to recently when he went over the amp ! From what i read EVH liked it and told him that its how it sounded back in the day!
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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by motrock » Sat Oct 06, 2012 7:14 pm

bmf5150 wrote:Those specs I posted are the specs Dave Friedman set the amp up to recently when he went over the amp ! From what i read EVH liked it and told him that its how it sounded back in the day!
I believe this is how Dave setup my Variplex.

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Re: George saw Ed's amp? Spill some beans Mr. Velvet!

Post by antosimoni » Thu Oct 11, 2012 3:25 pm

thanks a lot for sharing these infos and to all of you guys for keeping up the good work... but theres one thing I hadnt got : EVH amp has an additional 220uF in parallel with the 0.68uF on V2a ?? that is confirmed ??
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