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Guytron Gt-100 Owner's Manual
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Guytron Gt-100 Owner's Manual

100 watt guitar amplifier
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THE
GT-100
100 W
G
A
ATT
UITAR
MPLIFIER
Owner's Manual
(SEE FV ADDENDUM)
GUYTRON AMPLIFICATION
www.guytron.com

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Summary of Contents for Guytron Gt-100

  • Page 1 GT-100 100 W UITAR MPLIFIER Owner’s Manual (SEE FV ADDENDUM) GUYTRON AMPLIFICATION www.guytron.com...
  • Page 2 The power cord should be unplugged from the outlet when left unused for long periods of time. Operating temperature: Do not expose the GT-100 to excessive heat. This unit is designed to operate between 32 ° F and 104 ° F (0° C and 40° C) DO NOT ATTEMPT TO SERVICE THIS EQUIPMENT YOURSELF! THIS EQUIPMENT SHOULD BE SERVICED BY QUALIFIED PERSONNEL ONLY.
  • Page 3 10” sound at any volume (without external power attenuators), restoring power amp distortion and harmonics missing from conventional master volume technology. The GT-100 is a two channel, 100 watt, pure tube amplifier with vintage tones and modern features, all hand built in the U.S.A.
  • Page 4 Input is out of phase with its own output. This would cancel out with the original dry sound in the amp, because the Guytron’s dry sound is (obviously) in perfect phase with itself. Another option would be a phase reversing buffer amp in the loop to return the signal to it’s original phase relationship, if you have a problem effects unit.
  • Page 5 Detroit, I came across several hundred of them, and that cemented the tradition. By the time the 90’s rolled around, they were once again popular and back in production, and so there was never any decision as to which kind of pilot light we should use on the GT-100.
  • Page 6 Guytron GT-212 cabinet. Use a penny to adjust it to the correct impedance for your application. For (2) Guytron GT-212 cabinets, the correct setting is 4 ohms. The speaker jacks are in parallel, so the selector should reflect the total parallel impedance for whatever is plugged into the two speaker jacks. I do know of people deliberately mismatching the amp and cabs, for tonal reasons.
  • Page 7 (to eliminate coloration). We also used, .010 gauge GHS boomers, 18.6’ pro-co lifeline guitar cord, and matching Guytron 2 x 12 cabinet. (I mention all these things because they are important factors, and I have found that all things involved influence the production of tone) During the sampling the master tone settings were all at twelve o’clock and it’s a good idea to...
  • Page 8 Brilliant highs, cleans up great, warms up Vox AC30 a lot as gain increases, cool sounding Mids. (see note next pg) (Sweep Master Treble, Mid, and Bass to taste.) Note: On the Vox setting, (previous page) you can see the differences with using the master tone controls.
  • Page 9 These kinds of observations, as well as many other proven examples witnessed while running my little repair shop, are the reason Guytron amps will remain “Overbuilt to the Hilt”.
  • Page 10 Note: You might like to photocopy this page, you may find it a useful reference. Check out our web page soon, www.guytron.com , for contact with other GT-100 players to trade settings, and exchange good ideas, etc. It’s also a good idea keep a folder with external notes sheets, for any external effects, or more descriptive notes, etc.
  • Page 11 Tube Basics 101-A What it is, to own a tube amp or; (More notes for the digital generation, and other new tube users). Introduction: As a relative “old timer” in the tube business, I do not get all shook up if I hear a “Pop” or “Crackle”...

  • Page 12: Pre-Amp Tubes

    DANGER! HIGH VOLTAGE! Any internal repairs should only be done by a qualified tech. This technically includes bias adjustment, but it has been done many times by well studied amateurs. However, Guytron assumes no liability what so ever for damages, injuries, bad tones, or otherwise. Pre-Amp Tubes: Sometimes the trickiest ones to find are just pesky pre-amp tubes and the noises they will make.
  • Page 13 The recommended configuration is two of the GT-212 cabinets with one GT-100 head, this gets one cabinet up to your ears while the other stays coupled to the floor for a big full tone (To run two cabs, use a penny to set the impedance selector to 4...

  • Page 14: Warranty

    Please contact the GUYTRON distributor or dealer in your country for more information. The foregoing is in lieu of all other expressed warranties, and GUYTRON does not authorize any party to assume for it any other obligation or liability. In no event shall GUYTRON be liable for special or consequential damages arising from the use of this product, or for any delay in the performance or this warranty due to causes beyond our control.