jenkins wrote:jerry used more than one amp back in the day. In '68 he used 3 twin reverbs ran into 2 4x12 cabs. Im not sure how he ran it though. In '76 he ran dual twin reverbs.
in 79 he added some sort of op-amp buffer/amp to maintain high end clarity with the effects on.
Which is basically what im tallking about doing by adding on another amp. I add another amp with no reverb and more of a high end tone.
Starting toward the late 70's Jerry used effects loops, pre-amps, op/amp buffers, and was running stereo through the house PA. This obviously helped his tone greatly and at that point it seems like running one amp is all that is needed.
Ive found that using dual amps to be the easiest way to recreate jerry's tone. After I started playing through two amps I cant go back to one. WHenever I play on one amp nowadays it just sounds weak and I can never get it to truly have the highs and the lows come through clearly.
Anyways, thats my tip for the "easiest" way to recreat the dead's sound; which is not easy
Some parts of this are close to true - some are not. From early on in the 70's he used some form of buffer in his guitars. Early on it was alembic developed stratoblaster wiring in Alligator. Later in the 70's John Cutler designed the unity gain buffer that was used in tiger and all later guitars. But, except for the 60's, it's my understanding that Jerry used some form of buffer in all of his guitars.
You are right that he used to run through multiple twins early on. However, by about 72 or so he used one. The dual twins that you saw him use up until 94 (when he switched to a rack mounted GT Trio) was just a primary and a backup. The lower amp - the silverface - was the one that was the main amp. The blackface was only used as an emergency backup. It was convenient to have them both in the same cabinet - that way it was just a matter of moving over one cable if the silverface went down.
And Jerry's guitars were never in stereo. The 2 cables from his guitar are a loop send/return and main output. One cable was a stereo cable with stereo connectors (TRS, Tip, ring, sleeve) - this was used as the send AND return all in one cable. A stereo cable has 3 conductor - for this application the ground (sleeve) is used as a common ground for both send and return, the tip conductor gets split off to a mono connector on the other end which goes to the beginning of the effects chain. The ring conductor is the return and also gets split off to a mono connector which goes to the output of the last effect. So this cable is really a Y cable - stereo connector on one end and 2 mono connectors on the other end.
The signal from the output of the pickups runs out to the effects loop and then back to the guitar - through the volume pot - and THEN out through the other jack and from there out to the amp. Now, the main output jack on the guitar was also a stereo connector and here's why... the unity gain buffer requires 9v battery but it would be on all of the time unless some kind of switch was wired up for it. Well, in this case the negative from the buffer was run to the ring and the main ground was run to the sleeve. This way, when the mono connector from the main out cable was connected, it would bridge the ring and sleeves, and connect the negative to ground, completing the circuit, and turning on the battery and the buffer. Pretty cool.
Here's a schematic of Tiger and this system:
For tons ofinfo on jerry's gear - look here: