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Schematics, Service Manuals and Owners Manuals


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Models #'s (if mulitples) The models not used were inked out and sometimes this ink has rubbed off.
Model # shown on rear serial plate may not be correct if there is a model name on top contol panel.
Model # (if multiples) Sometimes the model was checked off in a white box.
Polytone 100 Custom Bass Guitar Amplifier Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers.
Note: This model has two channels, each with Volume, Bass, Treble contols, & Dark/Brite switch. Nothing on rear. Power amp is all transistors, no driver ic. (Dated 1977-78) ($20)
Polytone 101 Custom Bass Guitar Amplifier (1977-78) Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers.
Note: This model has two channels, each with Volume, Bass, Treble contols & Dark/Brite switch. On rear, Bass & Treble Bi-Amp outputs and a toggle switch for room eq. Power amp is all transistors, no driver ic. (Dated 1977-78) ($20)
Polytone 102 Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Semiconductor Generic Reference Numbers.
Note: This model has two channels, Ch1 has dual knob Volume/Distortion, Bass, Treble contols, Dark/Brite sw. Ch2 same except no distortion. Center effects have dual knob Harmonic Speed/Octave Filter and dual knob Reverb/Octave Volume. Power amp has driver ic. (Dated 1978) (24pages/$20)
Polytone 102 Single Channel Guitar Amplifier Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers.
Note: This model has only one channel with Bass, Treble, dual red knob Volume/Distortion controls & Dark/Brite sw. Center effects are Vibrato, Intensity, Reverb. Power amp is discrete with no driver ic. (Dated 1977) ($20)
Polytone 102V Guitar Amplifier Schematic
Contents: Schematics.
Note: This model has dual channels: each with 2 input jacks, volume, bass, treble (no mid), and dark/brite switch. Center section has 3 controls: speed, vibrato intensity, and reverb. Toggle switch on rear. No harmonic or octave circuits. No red knobs. (Dated 1970) ($20)
Polytone 103 Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, Semiconductor Generic Reference Numbers, Service Bulletins / Engineering Changes / Modifications.
Note: There were several versions of this model. When ordering this model, email pics or send a text description of your front and rear panels so we can match up the correct schematics for your amp. ($20)
Polytone 103 Guitar Amplifier (1979ver) Schematic
Contents: Schematics, Our TechTips, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, Service Bulletins / Engineering Changes / Modifications.
Note: This model has two channels, Ch1 has dual knob Volume/Distortion, Bass, Treble contols, Dark/Brite sw. Ch2 same except no distortion. Center effects have dual knob Harmonic Speed/Octave Filter and dual knob Reverb/Octave Volume. Power amp has driver ic. (Dated 1979) (24pages/$20)
Polytone 104 Guitar Amplifier (1977ver) Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers.
Note: Without harmonic divider. This model has two channels, each with Volume, Bass, Treble contols (no Mid), Dark/Brite switch. Center section has dual knob with red Fuzz/Vibrato Intensity, Speed, Reverb. Power amp is all transistors (no driver ic). (Dated 1977) ($20)
Polytone 104 Guitar Amplifier (1978ver) Schematic
Contents: Schematics, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, Semiconductor Generic Reference Numbers, Service Bulletins / Engineering Changes / Modifications.
Note: With harmonic divider. This model has two channels, each with Volume, Bass, Treble contols (no Mid), Dark/Brite switch. Center section has dual knob with red Fuzz/Vibrato Intensity, Speed, Reverb. Power amp is all transistors (no driver ic). (Dated 1978) (24pages/$20)
Polytone 104 Guitar Amplifier (w/220watt power amp) Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers.
Note: Without harmonic divider. This model has two channels, each with Volume, Bass, Treble contols (no Mid), Dark/Brite switch. Center section has dual knob with red Fuzz/Vibrato Intensity, Speed, Reverb. Power amp has 4 output transistors (no driver ic). (Dated 1977) ($20)
Polytone 378, 378A, 378B Power Amp Modules Service Manual
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, PC Board Layout.
Note: All three versions as used in all Polytone amps. (16pages/$15)
Polytone Baby-Brute (1978 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Single channel, controls are: Bass, Treble, Dual-Volume, Reverb, & Brite/Dark Switch. (Dated 1978) (18pages/$20)
Polytone Baby-Brute (1985 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Pots are: Bass, Mid, Treble, Distortion-Volume, Reverb, & Brite/Dark Switch. (Dated 1985) (19pages/$20)
Polytone Baby-Brute (1987 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Pots are: Bass, Mid, Treble, Distortion Boost, Distortion EQ, Distortion Volume, Volume, Reverb, & Brite/Norm/Dark switch. (Dated 1987) ($20)
Polytone Baby-Taurus Bass (1987 version) Guitar Amplifier Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers (Dated 1987) ($20)
Polytone Baby-Taurus Lead (1987 version) Guitar Amplifier Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers (Dated 1987) ($20)
Polytone Fusion Guitar Amplifier Schematic
Contents: Schematics, Semiconductor Generic Reference Numbers.
Note: Also includes suggested demo setup instructions. (12pages/$20)
Polytone Maxi-B Bass Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This is the older version with no vibrato. ($20)
Polytone Maxi-Brute Lead (1979 version) Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Service Bulletins / Engineering Changes / Modifications (Dated 1979-80) (23pages/$20)
Polytone Maxi-L (1978 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, Semiconductor Generic Reference Numbers, Service Bulletins / Engineering Changes / Modifications.
Note: This is the older version with no vibrato. (Dated 1978) (16pages/$20)
Polytone Mega-Brain Guitar Amplifier Schematic
Contents: (Schematic) ($20)
Polytone Mega-Brute (1998 version) Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, PC Board Layout.
Note: This is not the "Sonic Circuit" version. (Dated 1998) (19pages/$20)
Polytone Mini-Brute M-PA Mixer-Amplifier Schematic
Contents: (Schematic).
Note: 3-Channel PA (Dated 1982) (18pages/$20)
Polytone Mini-Brute-I (1977 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This version is a single channel with Hi/Lo input jacks, Dark/Norm/Brite tone switch, Volume, Bass, Treble (no Mid) controls. Output jacks are Hi Out, Main Out, Lo Out. Includes all three power amp versions. (Dated 1977) ($20)
Polytone Mini-Brute-I (1978 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, PC Board Layout.
Note: This version is a single channel with Hi/Lo input jacks, Dark/Norm/Brite tone switch, Volume, Bass, Treble (no Mid) controls. Output jacks are Main Out, and Ext. Speaker. Includes all three power amp versions. (Dated 1978) (19pages/$20)
Polytone Mini-Brute-I (1985 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, PC Board Layout.
Note: This version is a single channel with Hi/Lo input jacks, Dark/Norm/Brite tone switch, Volume, Bass, Mid, Treble controls. Output jacks are Main Out, and Ext. Speaker. Includes all three power amp versions. (Dated 1985) (19pages/$20)
Polytone Mini-Brute-II (1977 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: Dual Channels: Ch-1: Volume, Dark/Norm/Brite SW, Bass, Treble, (no Mid), Fuzz, Vibrato Intensity, Speed, Reverb. Ch-2: Volume, Dark/Norm/Brite SW, Bass, Treble, (no Mid). Output jacks are Hi Out, Main Out, Lo Out. Includes all three power amp versions. (Dated 1977) ($20)
Polytone Mini-Brute-II (1978 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, PC Board Layout.
Note: This version has a single channel with Volume, Dark/Norm/Brite SW, Bass, Treble, (no Mid), Distortion, Reverb, (no vibrato). Includes all three power amp versions. (Dated 1978) (19pages/$20)
Polytone Mini-Brute-II (1985 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This version has a single channel, volume, treble, mid, bass, distortion volume, and reverb. It does NOT have vibrato, effects loop or electronic crossover outputs. (Dated 1985) ($20)
Polytone Mini-Brute-II (1987 version) Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Service Bulletins / Engineering Changes / Modifications.
Note: This version has volume, treble, mid, bass, distortion boost, distortion EQ, distortion gain, and reverb. It does NOT have vibrato, effects loop or electronic crossover outputs. (Dated 1987) (19pages/$20)
Polytone Mini-Brute-III (1977 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This single channel version has bass, treble, volume and electronic crossover output labeled Hi-Out/Lo-Out. It does NOT have a MID tone control, reverb, vibrato or distortion. (Dated 1977) ($20)
Polytone Mini-Brute-III (1978 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This single channel version has bass, treble, volume. It does NOT have a MID tone control, reverb, vibrato, distortion or electronic crossover output. (Dated 1978) (19pages/$20)
Polytone Mini-Brute-III (1985 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This single channel version has treble, mid, bass, volume. It does NOT have a reverb, vibrato, or electronic crossover output. (Dated 1985) (19pages/$20)
Polytone Mini-Brute-III (1987 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This single channel version has treble, mid, bass, volume, distortion boost, distortion EQ, distortion gain, and reverb. It does NOT have vibrato, effects loop or electronic crossover outputs. (Dated 1987) ($20)
Polytone Mini-Brute-III (1998 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: This single channel version has treble, mid, bass and volume, distortion boost, distortion gain, effects loop. It does NOT have reverb, distortion EQ, vibrato, or electronic crossover. (Dated 1998) ($20)
Polytone Mini-Brute-IV (1977 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Dual Channels: Ch-1: Dark/Norm/Brite SW, Bass, Treble, Volume, Fuzz Volume, Vibrato Intensity, Vibrato Speed, Reverb. Ch-2: Dark/Norm/Brite SW, Bass, Treble, Volume. Output jacks are Hi Out, Main Out, Lo Out. Includes all three power amp versions. (Dated 1977) ($20)
Polytone Mini-Brute-IV (1978 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: Single Channel: 2 input jacks, Dark/Norm/Brite SW, Bass, Treble, Volume, Distortion Volume, Reverb. (Dated 1978) (19pages/$20)
Polytone Mini-Brute-IV (1985 version) Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: Single channel: 2 input jacks, Dark/Norm/Brite SW, Bass, Mid, Treble, Volume, Distortion Volume, Reverb. (Dated 1985) (19pages/$20)
Polytone Mini-Brute-IV (1987 version) Guitar Amplifier Schematic
Contents: Schematics, Our TechTips, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions.
Note: Single channel: 2 input jacks, Dark/Norm/Brite SW, Bass, Mid, Treble, Volume, Distortion Boost, Distortion EQ, Distortion Volume, Reverb. (Dated 1987) (18pages/$20)
Polytone Mini-Brute-IV (1998 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Single channel: 2 input jacks, Dark/Norm/Brite SW, Bass, Mid, Treble, Volume, Distortion Drive, Distortion Volume, Reverb, Effects Loop. (Dated 1998) (19pages/$20)
Polytone Mini-Brute-V (1982 version) Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, PC Board Layout, Semiconductor Generic Reference Numbers, Service Bulletins / Engineering Changes / Modifications.
Note: Older version with no mid tone, or "edge" control. Dual channels each with Hi/Lo jacks: Ch-1: Dark/Norm/Brite SW, Bass, Treble, Dual volume/Distortion knob, Reverb. Ch-2: Dark/Norm/Brite SW, Bass, Treble, Volume. Two rear jacks. (Dated 1982) (18pages/$20)
Polytone Mini-S12B (1983 version) Guitar Amplifier Service Manual
Contents: Schematics, Product Picture / Illustration, Specifications, Technical Circuit Descriptions, Service Bulletins / Engineering Changes / Modifications.
Note: No pictorial or circuit description for the preamp board. (Dated 1983) (19pages/$20)
Polytone Mini-S12L (1982 version) Guitar Amplifier Service Manual
Contents: Schematics, Product Picture / Illustration, Specifications, Technical Circuit Descriptions, Interconnection Diagram, PC Board Layout, Service Bulletins / Engineering Changes / Modifications.
Note: IMPORTANT! This version does not have a mid tone control. (Dated 1982) (25pages/$20)
Polytone Mini-S12L (1984 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Ch1 has dual knob Volume/Distortion, Treble/Mid, Bass contols, Dark/Brite sw. Ch2 same except no distortion. Center effects has dual knob Modulator Speed/Intensity and dual knob Reverb/Master Volume. (Dated 1984) (21pages/$20)
Polytone Mini-S15B (1982 version) Amplifier Schematic
Contents: Schematics, Product Picture / Illustration, Specifications, Technical Circuit Descriptions, Service Bulletins / Engineering Changes / Modifications (Dated 1982) (18pages/$20)
Polytone Mini-S15L (1982 version) Amplifier Service Manual
Contents: Schematics, Controls, Functions & Theory of Operation, Interconnection Diagram, PC Board Layout, Service Bulletins / Engineering Changes / Modifications.
Note: This version does not have a mid tone control. (Dated 1982) ($20)
Polytone Mini-S15L (1984 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Ch1 has dual knob Volume/Distortion, Treble/Mid, Bass contols, Dark/Brite sw. Ch2 same except no distortion. Center effects has dual knob Modulator Speed/Intensity and dual knob Reverb/Master Volume. (Dated 1984) (21pages/$20)
Polytone PA120 PA Mixer-Amplifier Schematic
Contents: (Schematic).
Note: Contains both old & new versions (Dated 1982) (19pages/$20)
Polytone PA60 PA Mixer-Amplifier Schematic
Contents: Schematics.
Note: Contains both old & new versions (Dated 1982) (19pages/$20)
Polytone Studio-212 (1982 version) Amplifier Service Manual
Contents: Schematics, Controls, Functions & Theory of Operation, Interconnection Diagram, PC Board Layout, Service Bulletins / Engineering Changes / Modifications.
Note: This version does not have a mid tone control. Dual power amps. (Dated 1982) (25pages/$20)
Polytone Taurus (1987 version) Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, Semiconductor Generic Reference Numbers.
Note: Single channel: 2 input jacks, Dark/Norm/Brite SW, Bass, Mid, Treble, Volume, Distortion Boost, Distortion EQ, Distortion Volume, Reverb. (Dated 1987) (19pages/$20)
Polytone Teeny-Brute (1978 version) Guitar Amplifier Schematic
Contents: Schematics, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Calibration / Alignment Instructions, PC Board Layout, Service Bulletins / Engineering Changes / Modifications.
Note: Single channel: 2 input jacks, Dark/Norm/Brite SW, Bass, Treble, Volume (no Mid control) (Dated 1978) (19pages/$20)
Polytone Teeny-Brute (1985 version) Guitar Amplifier Schematic
Contents: Schematics.
Note: Single channel: 2 input jacks, Dark/Norm/Brite SW, Bass, Mid, Treble, Volume (with Mid control) (Dated 1985) ($20)

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Polytone Schematics, Service Manuals and Owners Manuals Archive