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Post by Deleted on Jan 12, 2009 10:10:58 GMT -7
Has anyone tried a 5751 in the stangray? How did you find it? I've got a couple of Jan-Philips NOS 5751 that I may try. Did it give more clean headroom? Any adverse effects on tone?
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Post by whitestrat on Feb 14, 2009 19:47:13 GMT -7
Yeah, I've tried NOS 5751s in all sorts of amps, including the Dr. Z Stang Ray. In the Stang Ray it can only be used in the phase inverter socket since all other positions won't accept a dual triode tube. As such you don't experience much of the tube's sonic character when this tube is used as a phase inverter.
Some people like them, others don't. Generally you get better results with a 5751 in a modern tube amp that has gobs of gain on tap (cascaded preamp), and you desire to tame the harshness a little. 5751s will do that if that's what you want.
With old vintage style amps that have cathode follower tone stacks, they can rob the amp of too much gain and kill the tone, sensitivity, and touch dynamics. Most guitarist find this undesirable and stick with 12AX7s if that is the tube that is called for by the manufacturer.
As usual YMMV.
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Post by John on Feb 16, 2009 5:38:14 GMT -7
I would never use a 5751 in the PI of the Ray. I like pushing the power tube as much as possible.
I do use a 5751 in my Maz Jr NR. (in V1) I like it a LOT. It allows my Maz to sound much like my Stangray.
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Post by myles on Feb 16, 2009 11:53:38 GMT -7
I would never use a 5751 in the PI of the Ray. I like pushing the power tube as much as possible. I do use a 5751 in my Maz Jr NR. (in V1) I like it a LOT. It allows my Maz to sound much like my Stangray. If you want to push the output section as hard as possible the JJ 803S long plates are currently the highest gain 12AX7 tubes made at the moment today. Typically their gain is over 90 and most other 12AX7s today are 80-85. Five points of gain might not sound like much but it is quite a difference. Here are the actual gain numbers in circuit that the last batch two weeks ago showed in testing which was even stronger than the previous run from JJ: 98.2 99.6 94.4 98.5 96.1 101.7 95.8 100.6 100.0 101.9 98.9 99.5 98.5 102.5 97.8 102.2 94.0 93.1 98.5 100.4 92.8 95.6 96.1 99.4 98.1 100.6 97.6 94.8 100.5 94.8 95.2 92.3 96.5 95.9 96.8 97.8 92.9 98.2 96.2 101.9 100.6 99.5 97.4 100.0 98.5 102.5 94.3 97.0 Pretty spectacular.
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Post by tookermel on Feb 17, 2009 8:53:12 GMT -7
Would this mean, then, that you would get earlier breakup from the Master?
-Tookermel
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Post by tookermel on Feb 17, 2009 8:55:53 GMT -7
Since I'm not a techincal genius, but I did read recently that the Maz Jr.'s have a cathode follower, do you mean you wouldn't use them in V1, or PI?
Thanks, -Tookermel
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Post by myles on Feb 17, 2009 12:32:08 GMT -7
Would this mean, then, that you would get earlier breakup from the Master? -Tookermel The amp will be more agressive at all settings.
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Post by tookermel on Feb 17, 2009 13:55:11 GMT -7
Hey, Myles.....are you sure you meant the 803S? Here's a peice of the description from Eurotube's website about this tube:
"These are however not as high in gain as the JJ ECC83S. The ECC803S's are about 10% lower in gain."
Thanks, -Tookermel
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