Originally Posted by
jhale667
Something interesting regarding the Grail from the Splawn board (via the VHT board):
"Having worked on the supposed IT amp on more than one occasion, I can speak first hand on some of this.
First of all, hate to blow anyone’s bubbles, but there’s not a thing especially outstanding or unique about this amp. Matt Bruck brought what he said was Eds main amp to me in 1990/1 to “bring it back to life” He said Ed felt it just wasn’t the same as it once was and thought the output transformer was “getting weak”. I told him OT’s don’t get weak, but went ahead and checked it out from top to bottom and found not a thing wrong with it at all. In fact it was bone stock and rather clean inside. It sounded like a stock Marshall, put out full power and all of the caps were in good shape. I might add, and this is just from memory, but I recall that the circuit was actually closer to a 70 JMP than it was to a plexi, something I attributed to this possibly being a transition model, seeing as how it had a plexi panel, but apparently the newer input and feedback configuration. All that aside, Matt insisted that something needed to be done so I gave it a complete once-over and I then took the liberty of installing a Pittbull Classic output transformer into it to see if anyone would notice. Upon getting it back, Matt told me that they noticed no difference in sound and they still thought it sounded weak. I just presumed that something else was amiss or had changed and thought no more about it. I still have the receipt and copy of the check for the work signed by Ed, in case anyone wants to try to discredit this claim. I don’t usually talk about it, because frankly Scarlett…but since you went to the effort of posting this here, I though it might be fun to respond to some of the idiots history items:
“Eddie would keep it loaded with four Sylvania 6CA7 power tubes (Ed used this American brand because they run slightly cooler than their European counterpart).”
In the mid to late 70’s most available EL34’s were horribly unreliable and the Sylvania 6CA7 was king because it was the only available reliable replacement. It was well known at that time that if you had an EL34 amp you either used the Sylvania 6CA7 or in the case of Marshall, the popular thing to do was swap it over to 6550, which Marshalls US distributor was doing to cut down on warranty claims for failed European EL34s – you know those coveted NOS ones people pay big bucks for now…and by the way, the back was off because tubes got replaced frequently and everybody at that time left the backs off or lost them.
(Although he did crank the Variac up to 140 volts in the studio for Van Halen I)!
Anyone who has ever tried this knows it's BS and the reason you know it’s BS is because after you tried it the guy who replaced your blown power supply capacitors or transformers told you it’s BS. When the first interview where this appeared came out I was a repair tech at Valley Arts Guitars, and I can tell you that article made me a lot of money. But I lost a lot of respect for the big E for being so thoughtless as to say such a thing in print and potentially help people put their lives in danger, or at the very least sacrifice their gear over such a stupid comment.
"Early in Van Halen's career, Ed used to say that his amps were heavily modified by Jose Arrendondo of Arrco Electronics to throw people off that were trying to imitate his sound."
And if it ended there, I would have thought fair enough, but it didn’t end there. He allowed Jose to promote and sell “Eddies Mod” to anyone with cash. As a result, legions of guys got reamed and their amps butchered with a bunch of terrible sounding and horribly executed mods (some now considered desirable as “Cameron Jose mods”) which caused lots of noise, hum, output transformer failures, etc, etc. I had lots of players coming to me wanting to find out why their amps with the blessed Jose/Eddie Grail were giving them so much grief. In most cases it went something like “fix the problem with the amp but don’t touch the mod”. Response: “The mod is the problem, so I either dump the mod or you take it back to Jose”."