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Geronimo

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About Geronimo

  • Birthday 01/19/2022

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  • homepage
    www.laurengifford.com
  • occupation
    Artist Developer
  • hobbies
    Ducati
  • Location
    Dallas, Texas
  1. Check the tubes one at a time to find the offending 12AX7 or 12AT7. If it is a normal channel only issue it is probably V1. If it is a vibrato channel issue it is probably v2 or v5. That T38 is long gone now but if you know somebody that would want to buy it I may be able to get in contact with the last person that had it up for sale. Thanks for the quick answer. The offending tubes were indeed v2 and v5. Would it make sense to get NOS 12AX7s and 12AT7s to replace the stock Fender GT tubes? I've never liked an amp as much as this one, so I'll do whatever it takes to get the most out of it. Thanks again for your help. That t-38 would be tempting...not now, though... are you still flying a kerosine burner? I would always go NOS if it were for my own amps. 12AT7s today are really junk and it is almost impossible to find one that is remotely close to specs. I'd also use a good RCA or USA vintage 7025/12AX7 in V1 (unless you don't use the normal channel), V2 and V5. The cool place to get these, the guy I use for my own stuff is Mike at www.kcanostubes.com Kerosene .... yes, but slower these days ... P180 Avanti. Way less fuel! Then again, Brad Paisley and Chad Weaver go back and forth quite often from Nashville to Vany Nuys in a Lear 45. Lots of fuel used there. I tried to talk him into a Citation X as it is faster and actually more economical but he went the Lear route. Thanks again for the great advise on the tubes, I'll give Mike a shout. Cheers, Oliver As for the kerosine ... a man of taste, I see ... the Avanti is one of the sexiest machines around ... Lear: I heard you better be a fighter pilot to land one of these ;-) Mike will take great care of you. The Lear 45 is not all that hard to land, about the same as a CX. Hi Myles, Yesterday I got the shipment from Mike/kcanostubes.com. I splurged and got the Mullard CV4024 to replace the 12AT7s. For the 12AX7s I was a little more modest and got the TungSol Reissues. I reasoned that if I'm not happy I can still go for the more expensive NOS later. Got home and installed them right away. I am blown away! I did not expect that much improvement in sound and noise reduction. All the weird hi-frequ noise is gone and the hum is about 10dB lower. The amp sounds a lot more open in the higher frequ range and the reverb seems smoother and more predictable. Thanks again for your recommendations. Best, Oliver
  2. Check the tubes one at a time to find the offending 12AX7 or 12AT7. If it is a normal channel only issue it is probably V1. If it is a vibrato channel issue it is probably v2 or v5. That T38 is long gone now but if you know somebody that would want to buy it I may be able to get in contact with the last person that had it up for sale. Thanks for the quick answer. The offending tubes were indeed v2 and v5. Would it make sense to get NOS 12AX7s and 12AT7s to replace the stock Fender GT tubes? I've never liked an amp as much as this one, so I'll do whatever it takes to get the most out of it. Thanks again for your help. That t-38 would be tempting...not now, though... are you still flying a kerosine burner? I would always go NOS if it were for my own amps. 12AT7s today are really junk and it is almost impossible to find one that is remotely close to specs. I'd also use a good RCA or USA vintage 7025/12AX7 in V1 (unless you don't use the normal channel), V2 and V5. The cool place to get these, the guy I use for my own stuff is Mike at www.kcanostubes.com Kerosene .... yes, but slower these days ... P180 Avanti. Way less fuel! Then again, Brad Paisley and Chad Weaver go back and forth quite often from Nashville to Vany Nuys in a Lear 45. Lots of fuel used there. I tried to talk him into a Citation X as it is faster and actually more economical but he went the Lear route. Thanks again for the great advise on the tubes, I'll give Mike a shout. Cheers, Oliver As for the kerosine ... a man of taste, I see ... the Avanti is one of the sexiest machines around ... Lear: I heard you better be a fighter pilot to land one of these ;-)
  3. Check the tubes one at a time to find the offending 12AX7 or 12AT7. If it is a normal channel only issue it is probably V1. If it is a vibrato channel issue it is probably v2 or v5. That T38 is long gone now but if you know somebody that would want to buy it I may be able to get in contact with the last person that had it up for sale. Thanks for the quick answer. The offending tubes were indeed v2 and v5. Would it make sense to get NOS 12AX7s and 12AT7s to replace the stock Fender GT tubes? I've never liked an amp as much as this one, so I'll do whatever it takes to get the most out of it. Thanks again for your help. That t-38 would be tempting...not now, though... are you still flying a kerosine burner?
  4. Hi Myles, I just purchased a new Fender '64 Vibroverb Custom. I love the tone of it. Right when I got it 2 of the 12AX7's were microphonic and made the amp squeal and feedback like crazy. I went down to Guitar Center and replaced them with GT Gold tubes. The amp is still hissing when it gets really warm and popping when the volume gets louder. Would it be a good idea to replace all the stock tubes (Fender GT) with NOS? I think the output tubes are pretty good ones, right? Any suggestions on tube replacements? I am looking for blues and rock tones in the SRV territory. Thank you so much for your help. PS: Any chance to get a ride in your T-38, she's a real beauty!
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