Dog Face
223 posts
Oct 21, 2013
1:41 PM
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I just acquired a Fender Blues Jr and was looking at experimenting with different tubes. I see a bunch of stuff online about try this tube in the v1 and this in the v3. My question is, which is the v1 tube and so on? I didn't get any papers or schematics with the amp. Thanks!
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Brad
Last Edited by Dog Face on Oct 21, 2013 1:42 PM
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HawkeyeKane
2115 posts
Oct 21, 2013
1:53 PM
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Question for you....which Blues Junior is it? There've been a few different versions? Does the back tag say Blues Junior III or just Blues Junior?
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Hawkeye Kane
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Dog Face
224 posts
Oct 21, 2013
1:56 PM
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It just says Blues Junior.
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Brad
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tmf714
2114 posts
Oct 21, 2013
2:12 PM
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From right to left is how the tube lineup is read-V1 extreme right-V4 and 5 are the output tubes-EL84-V1 is the pre amp which has the biggest effect on tone,and V3 is the phase inverter-it affects the tone,but not as much as the pre amp tube in slot V1.
Here is the man on the subject Bill M-http://billmaudio.com/wp/?page_id=131
Last Edited by tmf714 on Oct 21, 2013 2:13 PM
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Georgia Blues
107 posts
Oct 21, 2013
2:12 PM
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Howdy DF,
I've got a 2007 FBJr. For what it's worth I've got it set up like this: Power tubes Mullard EL84; preamp #1 12ay7, preamp #2 12ay7 and preamp #3 12dw7. #3 seems and the power tubes seem to have made the most difference. I've played around with 12au7 in the #1 or #2 slots. Not sure about the difference in performance there. #1 is the preamp closest to your input, then 2 and 3.
That's my 2 cents... literally 2 cents worth.. :o.
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Alex
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Rick Davis
2567 posts
Oct 21, 2013
2:47 PM
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I have tried a few times to modify a BJr for harp and I just never could get the tone I like. Others have had some success at it.
Georgia Blues, do you have a video of yours? I'd like to hear it.
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-Little Rick Davis
The Blues Harp Amps Blog
The Mile High Blues Society
Last Edited by Rick Davis on Oct 21, 2013 2:48 PM
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Dog Face
225 posts
Oct 21, 2013
9:36 PM
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Yeah, we'll see how it does. I figure any free (working) amp is a good amp.
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Brad
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Rick Davis
2576 posts
Oct 22, 2013
2:28 PM
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Dogface, free is good. Free amps are more fun.
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-Little Rick Davis
The Blues Harp Amps Blog
The Mile High Blues Society
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