SPECS AND SCHEMATICS FOR RICK-TONE AMPS

This page contains brief specs and electrical schematics for some models of Rick-Tone amplifiers. To find the schematic for your amp, you'll need to know its type number. If you're not sure what the type number is, click here for information about identifying Rick-Tone amps.

Please be aware that these amplifiers underwent many changes and improvements over the time span that I was building them, and many units were custom-tailored to individual owners' tastes. That means the schematic drawings on this web site may be useful as a general guide to the workings of the amplifier, but it will be quite rare for the circuit of your individual Rick-Tone amplifier to exactly match the schematic from this web site. In some amps the differences are as simple as a few resistor values different from the drawing, while some amps exhibit more radical departures from the drawings.

Type 6 Amplifier: Single-ended practice or recording amplifier for electric guitar; preamp - (1) 12AX7; output - (1) 6K6, 6V6, 6L6, or 6CA7/EL34; rectifier - 6X5GT (early) or silicon diodes (late); output 3-8 Watts depending on power supply voltage and output tube.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 8 Amplifier: Single-ended practice or recording amplifier for electric guitar; preamp - (1) 12AX7; output - (1) 6V6, 6L6, or 6CA7/EL34; rectifier - 5Y3 or 5U4GB (early) or silicon diodes (late); output 4-12 Watts depending on power supply voltage and output tube.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 9 Amplifier: Very small, low-power, single-ended amp for electric guitar. First revision used a pair of 6AU6/6BA6 small signal pentodes for about 1/3 Watt output. Second revision used 6AU6/6BA6 as preamp and 6AS5 as power amp for about 1 Watt output. Schematic not currently available. NOTE: Only a few of these were built.

Type 10 Amplifier: Low power guitar practice amp with a warm, low-fi '50s garage band sound. About 1.5 Watts output. Used miniature series-filament radio tubes 12BA6, 50C5/50EH5, and 35W4. Equipped with an isolation transformer to keep AC line voltage safely away from the chassis. Recommended for rockabilly and country styles. Schematic not currently available. However, the circuit is similar to other 3-tube series-filament amplifiers of the '50s and '60s like the Harmony 410, Kay 703, Silvertone 1430, etc., but with the addition of an isolation transformer for safety. NOTE: Only a few of these were built.

Type 11 Amplifier: ''Heartbreaker'' model. Medium-power push-pull amplifier for electric guitar; preamp - (2) 12AX7; output - (2) 6L6 or 6CA7/EL34; rectifier - silicon diodes; output - 28 Watts.

• [ Electrical Schematic ]
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Type 12 Amplifier: The identifier ''Type 12'' was often used to refer to custom versions of the Type 11. Some were higher power, some had two channels, etc. Refer to the Type 11 schematic for the basics.

Type 13 Amplifier: ''Warthog'' model. Single-ended practice amplifier for electric bass guitar; preamp - (1) 6SK7 or 6SJ7; output - (1) 6L6; rectifier - 5Y3 (early) or silicon diodes (late); output about 8 Watts.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 16 Amplifier: ''Neptune'' model. Push-pull amplifier for electric guitar; preamp - (2) 12AX7; output - (2) 6V6GT; rectifier - 5Y3 (early) or silicon diodes (late); output - 10-15 Watts. Lower power adaptation of Type 11.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 17 Amplifier: ''Mercury'' model. Single-ended practice amplifier for electric guitar; preamp - (1) 12AX7; output - (1) 6AQ5/EL90; rectifier - 6X4; output - 4 Watts.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 18 Amplifier: ''Cupid'' model. Single-ended practice amplifier for electric guitar; preamp - (1) 12AT7; output - (1) 6AQ5/EL90; rectifier - silicon diodes; output - 2.5 Watts.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 19 Amplifier: ''Cupid X.O.'' model. Single-ended practice amplifier for electric guitar; preamp - (1) 12AT7; output - (1) 6BQ5/EL84; rectifier - silicon diodes; output - 4 Watts.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 20 Amplifier: ''Baby Heartbreaker'' or ''Heartbreaker Jr.'' model. Push-pull amplifier for electric guitar; preamp - (2) 12AX7; output - (2) 6AQ5/EL90; rectifier - silicon diodes; output - 5-10 Watts.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 22 Amplifier: ''Double Deuce'' model. Push-pull amplifier for electric guitar; preamp - (2) 12AX7; output - (4) 6AQ5/EL90; rectifier - silicon diodes; output - 6-12 Watts.

• [ Electrical Schematic ]
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Type 26 Amplifier: ''Heartbreaker X.O.'' model. Another variation of the Type 11 push-pull circuit. Uses four 6L6 or EL34 tubes instead of two. No schematic currently available. Refer to type 11 and 22 schematics, which are similar.

Type 31 Amplifier: ''Jupiter'' model. Push-pull amplifier for electric guitar; preamp - (2) 12AX7; output - (2) 6BQ5/EL84; rectifier - 5Y3 (early) or silicon diodes (late); output - 10-15 Watts. Lower power adaptation of Type 11.

• [ Electrical Schematic ]
• [ Specs & Info ]

Type 32 Amplifier: ''Jupiter X.O.'' model. ''Extra Output'' version of the Jupiter model. Another variation of the Type 11/16/20 push-pull circuit. Uses four 6BQ5 (EL84) tubes.

• [ Electrical Schematic ]

Type 33 Amplifier: ''Neptune X.O.'' model. ''Extra Output'' version of the Neptune model. Another variation of the Type 11/16/20 push-pull circuit. Uses four 6V6 tubes.

• [ Electrical Schematic ]

SPECS AND SCHEMATICS FOR RICK-TONE EFFECT PEDALS

Tube-O-Drive: Tube-based volume boost (overdrive) box.

• [ Electrical Schematic ]
• [ More Info ]

Trem-O-Drive: Tube-based tremolo and overdrive box.

• [ Electrical Schematic ]
• [ More Info ]

What If My Amp or Effect Isn't Listed Here?

If you need a schematic for a Rick-Tone or Rick Campbell amplifier or effect that's not on this page, let me know what type number or model of device you have and I'll try to get the schematic drawn up if I still have the necessary information. Unfortunately, some notes and paper drawings were lost or damaged over the years, so it might not be possible to get the schematic for every type or model. Also note that for some models, especially one-of-a-kind custom units, I sometimes gave the new owner my original hand drawn schematic with the amp and neglected to keep a copy of the drawing for myself. In those cases, it won't be possible to create a schematic without having the actual amp to examine.

You can also find some Rick-Tone schematics at Larry's SchematicHeaven.com. Look on the Post 70's Amps page there.