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Post by jcv on Jan 5, 2009 5:27:46 GMT -7
I've always needed to use my Airbrake when playing though my Galaxie. When I'm the only one home I'll get the Airbrake on 4 or if I play it out, maybe 2. It's always been a loud mutha! So, I've been playing through my Maz Jr a lot lately and the last couple of times I've used the Gal it doesn't seem that loud at all - even without the Airbrake! I mean, it's not quiet but it doesn't seem anywhere near as loud as it used to. It also doesn't seem anywhere near as full sounding as the Maz, no matter how I set it up. Could my Gal need a re-tube?
BTW - I'm running it in pentode mode.
Thanks Jay
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Post by amakitalo on Jan 5, 2009 10:51:06 GMT -7
Check your bias. It could be on the low side, which would contribute to a "thinner" sound.
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Post by Curt on Jan 5, 2009 11:42:50 GMT -7
The Galaxie does not 'cut' like the Maz, much like the Route 66, it's deceptivly loud yet does not cause discomfort.
But, I digress, you may very well have worn power tubes.
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Post by jcv on Jan 6, 2009 8:41:58 GMT -7
Yes, I've done wrong to the Gal - much shame Thanks guys. I don't know how to adjust or check bias - I probably should learn since I own several amps now. Seems like I should get to that first before trying new tubes.
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Post by jcv on Jan 7, 2009 12:08:51 GMT -7
OK, I might be going to GC tonight in which case I'll pick up a matched pair of 6L6's. Is it safe to just pop those in and try it or does the bias need to be checked first?
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Post by Joey Beverages on Jan 7, 2009 12:57:30 GMT -7
[glow=red,2,300] The Galaxie does not 'cut' like the Maz, much like the Route 66, it's deceptivly loud yet does not cause discomfort.[/glow] But, I digress, you may very well have worn power tubes. +1 on that. lotsa power. lotsa volume. lotsa fun ;D
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Post by basementhack on Jan 7, 2009 20:04:01 GMT -7
[glow=red,2,300] The Galaxie does not 'cut' like the Maz, much like the Route 66, it's deceptivly loud yet does not cause discomfort.[/glow] But, I digress, you may very well have worn power tubes. +1 on that. lotsa power. lotsa volume. lotsa fun ;D Yep...when I tried it today we had trouble getting it past 10 o'clock. The sales guy couldn't believe the snarl it had. Keith
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Post by jcv on Jan 7, 2009 20:59:10 GMT -7
OK, I might be going to GC tonight in which case I'll pick up a matched pair of 6L6's. Is it safe to just pop those in and try it or does the bias need to be checked first? OK guys, we all love the Gal - back to the question please
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Post by drew on Jan 7, 2009 23:01:01 GMT -7
Too bad to hear that your ole Gal ain't putting out like she should. Mine has plenty of power and came with groove tubes rated at 4. If the old power tubes were groove tubes and the new ones are the same rating some say it's OK to put the same rated groove tubes without re-biasing but with a different rating you'll want to re-bias the amp. Since you're having problems and it's always a good idea to check and re-bias amps with fresh output tubes or just an amp checkup. Have you thought about investing in tube amp biasing tools. They come with or without the readouts. If you go with the biasing tool without a readout you'll need a multimeter. Some say it's better to go with a separate tool and multimeter. That way if an led readout goes you only have to replace the multimeter. Either tool works, check out the weber site for examples or ebay. IMHO it seems like there is something odd going on as 6L6 output tubes are pretty hearty and have a decent life expectancy. It does not mean that they don't go bad because they can and do but your volume issue seems odd that it came on all of the sudden. Have you tried removing and reseating all of your preamp and rectifier tubes? The output tube swap out is viable test and you can always use them down the road or trade them...
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Post by Curt on Jan 8, 2009 12:13:48 GMT -7
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