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  1. Dont know if it applies to this amp but a common...

    Dont know if it applies to this amp but a common problem in Mesa Mk series was a bad ground connection on the rca jack attached to the chassis.
  2. As to the recommended input capacitance,I have...

    As to the recommended input capacitance,I have done extensive testing with various rectifiers and you can go way over the recommended values.One example is I have a 5E3 clone with a 5v4 rectifier,the...
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    Schematic he posted is the reissue,so.........

    Schematic he posted is the reissue,so.........
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    This.I would just go ahead and change out the...

    This.I would just go ahead and change out the crap caps Fender uses in these and most of their more modern amps.I've had so many newer Fenders with various symptoms and in just about every case it...
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    I dont think it has anything to do with the AC...

    I dont think it has anything to do with the AC line itself.At our "club house" upstate,the electricity is powered by a generator.We have 4 neon signs powered by the generator.Our amps are run off a...
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    I would check the heater/filament voltages first.

    I would check the heater/filament voltages first.
  7. What kind of cab are you using?Maybe you just...

    What kind of cab are you using?Maybe you just need a better cab.
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    Funny thing about BMI.They bought Sprague and now...

    Funny thing about BMI.They bought Sprague and now make the Sprague Atoms and the BMI's at the same plant on the same machines,so they are essentially Sprague Atoms,re-labeled.But the BMI's,if you can...
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    I wouldnt put much stock in the listed input...

    I wouldnt put much stock in the listed input capacitance in tube data sheets.I have 2 amps I built with 5R4 rectifiers.The data sheets say 4uf for the cap.I have been using 80uf for years with no...
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    "Early 70's transistors were definitely in, tubes...

    "Early 70's transistors were definitely in, tubes were deemed obsolete. See how well that worked out, right?"Actually worked out real well for me.From the late '70's til the "90's I was scouring "ham...
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    Didnt give me tubes in college either...oh,wait,I...

    Didnt give me tubes in college either...oh,wait,I didnt go to college.I skipped early 70's transistors and went straight to tubes,working for a tv repair shop in the neighborhood from '69 til '74...
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    Nope,I'm Carl Stokes from NY,formerly NYC til...

    Nope,I'm Carl Stokes from NY,formerly NYC til about 2 yrs ago
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    As to the OP ques.There could be multiple things...

    As to the OP ques.There could be multiple things causing the harshness.The ss rect will increase voltages which could cause the AX7's to be more stiff,brittle sounding.Instead of switching the master...
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    I think that was me,mike.I'm in NY,about a mile...

    I think that was me,mike.I'm in NY,about a mile from the Mass border just south of Grt Barrington.Sorry if I mislead you to think I was in Mass.
  15. Thread: New TAD tube

    by stokes
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    I dont think there is any need for a balanced...

    I dont think there is any need for a balanced triode in a guitar tube amp.All the components in the circuit are +/- 10-20% tolerance.There goes the balance.Might be useful in hi-fi were tighter...
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    I "pre form" all electros.Its not a "re-form" if...

    I "pre form" all electros.Its not a "re-form" if its not old caps,I would never re-form an old cap,if theres a doubt,just replace it.I dont keep a big supply on hand but I do have about a dozen...
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    I did the same thing with a pair of 6L6WG's in...

    I did the same thing with a pair of 6L6WG's in single ended,parallel.It was a long time ago,but I think I used a .047 cap,I used a few and really forget where I settled.I def used a 220 grid leak.I...
  18. Not a fan of these SS reverbs but I'm also not a...

    Not a fan of these SS reverbs but I'm also not a big fan of onboard reverbs in general,either.I have a couple of outboard 6G15 clones I've built,so the built in reverbs,even tubed,dont do it for...
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    Hoffmanamps.com has a couple of Fender chassis,I...

    Hoffmanamps.com has a couple of Fender chassis,I didnt see the Bassman,but maybe if you contact him he can make one or tell you where you may find one.
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    Just an FYI,you can get exact cap replacements...

    Just an FYI,you can get exact cap replacements for Ampegs at Fliptops.net
  21. There is a huge difference in the output of the...

    There is a huge difference in the output of the single coils in your G&L and the humbuckers in the SG.I've never owned a G&L but guys I know who do all say the same,the G&L has a bit too much treble...
  22. I've been using the Weber Bias Rite for too many...

    I've been using the Weber Bias Rite for too many years to remember,never had any problems with it.Using a cathode resistor is usually not an option since I'm not working on my own amps and most...
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    I use Watts Tube audio here...

    I use Watts Tube audio here https://tubeamplifierparts.com/ Dont know what shipping to Canadia would be,tho.
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    Florida

    Florida
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    Florida

    Florida
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    Try these tanks,Chuck. Reverb Tanks...

    Try these tanks,Chuck. Reverb Tanks I posted this earlier.Best tanks I've seen in years.Somebody said they thought they were MOD's,but I dont think thats the case.A world of difference in my...
  27. I wouldnt call it a "blocking issue", just the...

    I wouldnt call it a "blocking issue", just the nature of the circuit.Have never heard of anybody diagnosing it as a blocking issue or attacking it as if it were and adding grid stoppers to address...
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    I'm with Mick on those Illinois caps.I've seen...

    I'm with Mick on those Illinois caps.I've seen far too many of the newer Fender amps using these caps with various symptoms being caused by these caps.Dont think it has anything to do with your...
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