Frenzel Tube Amplifiers
www.frenzeltubeamps.com
©
2012 Copyright by Frenzel Tube Amplifiers. All rights reserved
.
All designs, technical data, pictures, and information are
copyrighted and may not be reproduced without the permission of Frenzel Tube Amplifiers.
Dual Speaker Jacks - Speaker Impedance Selector 4 - 8 - 16 ohms
Dual 5AR4 rectifier's for optimum pick attack and sag...or you can use 5U4’s or Solid State Plug-In for different amounts
of sag.
Extra long (10') three prong grounded power cord.
STANDBY switch to turn off the high voltage during warm-up.
Rock solid point-to-point hand wiring using only the best of parts...low noise tubular polypropylenes caps, metal film
resistors, ceramic sockets, Switchcraft jacks...etc.
Sweet vintage clean to classic overdrive tones with three different types of distortion depending on whether you are
overdriving the preamp, output... or both!
Tube compliment: The amp comes with (3)12AX7, (2) 6L6, (2) 5AR4, but you can substitute 12AT7's or 12AU7's in the
preamp and driver for different tones and overdrive sounds. You can also substitute 5881's, KT66's, KT77’s,KT88's,
6550's, or EL34's in the output stage for different sounds. No bias adjustment required.
FRONT PANEL:
- NORMAL INPUT
- BRIGHT INPUT
- NORMAL GAIN
- BRIGHT GAIN
- BASS
- MIDDLE
- TREBLE
- MASTER
- PRESENCE with NNFB PULL SWITCH
- STANDBY SWITCH
- PILOT LIGHT
- POWER SWITCH
REAR PANEL:
- POWER CORD
- POWER PRIMARY FUSE
- DUAL SPEAKER OUT JACKS
- SPEAKER IMPEDANCE SWITCH 4 - 8 - 16 OHM
User’s Operation Guide:
FRONT PANEL CONTROLS:
NORMAL INPUT – input for NORMAL(Fender) preamp.
BRIGHT INPUT – input for BRIGHT(Marshall) preamp.
NORMAL GAIN – sets the volume and the point at which overdrive distortion is produced by the NORMAL
preamp. Set at ¼ for initial setting.
BRIGHT GAIN – sets the volume and the point at which overdrive distortion is produced by the BRIGHT preamp.
Set at ¼ for initial setting.
MASTER – sets the maximum volume of the amp and the point at which the output tubes saturate. The higher the
setting on the MASTER, the sooner the output tubes will saturate rate and produce output tube overdrive
distortion. Set at ½ for initial setting. Use the GAIN to adjust the volume level and preamp overdrive. As the GAIN
is increased the preamp will begin to produce preamp overdrive distortion. Turn the MASTER up for output tube
overdrive distortion. By adjusting the settings on the GAIN and MASTER you can set your desired amount
CLEAN and OVERDRIVE tones.
