Leslie Two Speed Controller | Percussion | Smooth Drawbars |
BassMon | Tap Off Kit | Tremolo Switches | Rebuilt B3 Tube Preamp |
Solid State Preamp | Reverb | Transposer | Combo Preamp | String Bass
Trek II is a registered trademark of Trek II Products, Inc.
Hammond Accessories and Add-ons
by Trek II Products* and Speakeasy Vintage Music*
Hammond C3 Organ

 

Speakeasy Vintage Music Leslie Two Speed Conversion Kit
This two-speed Leslie motor control will convert any Leslie with single speed motors to two-speed operation. This item features a 122-style warm-up cycle and sixteen adjustable slow speed choices. The design has 100% more slow speed torque than the other brands' kits. Speakeasy Vintage Music Leslie Two Speed Conversion Kit

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Trek II Percussion Unit Features
This unit adds the famous Hammond B3 style percussion sound to pre-B3 Hammond consoles. It mounts in place of the upper left hand check block. The TP-2B not only provides for the B3 style percussion, but gives you an additional percussive voice and more control.
  • Three harmonics - 2nd, 3rd and 5th
  • Level controls for each harmonic
  • Adjustable decay rate
Trek II TP-2B Percussion Unit

Smooth Drawbars Conversion for Older Hammonds with Ratchet Style Drawbars
For Hammond models A, AB, AV, B, BA, BC, BCV, BV, C, CV, D, DV, RT, B2, C2 and RT2 that have the ratchet style drawbars. No more ratcheting and no more tone drop-outs in between drawbar settings. Your drawbars will be as smooth as those found on later Hammond models B3, C3 and A100, although some of our customers have told us that their converted drawbars are actually smoother than those of a B3. It comes With installation and a one year warranty. Smooth Drawbar Conversion

Speakeasy Vintage Music BassMon Left-Hand String Bass Unit
This lower manual bass unit adds 16' string bass to a tonewheel console. The BassMon will fit almost all Hammond Organ tone wheel consoles no matter how old they are, and features four presets that can be used on the fly: 16', 16' + 8', 16' with pluck, and 16' + 8' with pluck. The "Pluck" is subtle, almost a percussion effect, but at 16' pitch. The BassMon works on the bottom three octaves of the organ manual to which it is installed with no invasion of any manual wiring or extra switches needed. Optionally the BassMon can be provided with a separate line out and a gain control for a bass amp. Speakeasy Vintage Music BassMon

Tap Off Kit for Vintage Hammond Organs
This kit provides a ¼” Bass Output and a ¼” Full Range Output with volume control to any spinet or console Hammond organ, making your organ ready for any combo amp or mixing board. It also provides a great way to boost your bass. Speakeasy Vintage Music Tap Off Kit

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Rebuilt B3/C3/A100/RT3 Tube Preamp
B3s were made from 1955 to 1975 and the components within the preamp are old and aging. As components within the preamp age,they drift in value and sometimes breakdown causing intermittent statics, hums, poor bass or treble response, etc. Replace your aging tube preamp with a rebuilt tube preamp, all resistors, capacitors, potentiometers and tubes have been replaced, also an improved power supply for a cleaner sound has been added, and the chassis is treated to prevent the growth of zinc dendrites. The warmth of a tube preamp is retained and the original (now disconnected) capacitors are left in place for asthetics. It comes with installation and a one year warranty. Rebuilt B3 Tube Preamp

All New Resistors/Capacitors/Potentiometers

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Trek II SSP-3 Solid State Pre-amp Features Options
Aging resistors,tubes and capacitors can become noisy and unreliable. The SSP-3 is a solid state replacement for most standard Hammond tone wheel consoles. The SSP-3 has been carefully designed to faithfully reproduce the response of the original tube pre-amp when it was new.
  • Built in reverb
  • Built in power supply
  • Built in Leslie 122 tremolo control circuitry
  • Built in B3 style percussion
  • Percussion control head - enables percussion voices for pre-B3 consoles"
  • Auxiliary amplifier channels provides amplifier input for keyboards, rhythm units, etc.
Trek II SSP-3 Solid State Pre-amp

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Trek II Reverberation Unit Features
For use in most standard Hammond consoles. Uses a full size three spring delay line for a natural reverb sound. Designed specifically to interface with vacuum tube circuitry of Hammond tone wheel consoles.
  • Includes reverb level control
  • Designed for Hammond tone wheel consoles
  • Full size three spring delay
Trek II Reverb

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Trek II TR-3 Transposer Features Note
Works with most Hammond organs utilizing a top octave generator IC (MDD). Will allow the organ pitch to be shifted in discrete semitone steps as much as two semitones sharp or four semitones flat.
  • Shift your playing into a singer's vocal range
  • Modulate from key to key
  • Accompany other instruments playing in "difficult" keys
The TR-3 Transposer is not compatible with tone wheel type organs. Trek II TR-3 Transposer

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Trek II Echo / Tremolo Switches Note
Mounts in place of the lower left hand end block on standard Hammond tone wheel consoles. Allows convenient rocker switch control of the tremolo function. Two electrically isolated switch sections allow the control of dissimilar Leslies with a single switch. Pre-punched mounting hole provided for addition of a reverb or other control in the same enclosure. When ordered along with Trek II Reverb or SSP-3 Solid State Preamp, the Echo / Tremolo switches can be supplied with the reverb control pre-installed in the end block cover. Trek II Echo / Tremolo Switches

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Trek II UC-1A Combo Pre-amp Features
Allows most single channel Leslie speakers to be driven by your portable organ, guitar, synthesizer or mixer. It provides two 1/4" phone jack inputs, one for high level signals, one for low level signals.
  • Foot switch tremolo control
  • Foot switch power on/off
  • Power and tremolo indicators
  • Input level and tone controls
  • Four different outlets to accommadate each of the following Leslie families listed below.
Trek II UC-1A Combo Preamp
Group 1 Group 2 Group 3 Group 4
11 Pin 9 Pin 6 Pin 6 Pin
130 760 21H 25
330 770 22H 44W
715 825 31H 45
716 900 122 46W
722 910 122A 47
723 925 122RV 125
815 142 145
820 222 147
822 222RV 147RV
860 247

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Trek II SB-2500A String Bass Unit Features Note
Provides 25 notes of deep rich bass with sustain and pluck effect. Installs in standard consoles utilizing the existing pedal switch contacts. Separate 8' and 16' outputs function with the existing pedal drawbars. Although designed to be played from the existing pedals, it will work with any single make contact assembly or keyboard.
  • Adjustable sustain length
  • Adjustable pluck effect
  • Quartz tuning accuracy
  • Separate outputs for connection to external amplifier
The SB-2500A is also available in a version for use as a replacement bass pedal generator in organs with unreliable, unrepairable, or poor sounding pedal sections (E100,R100,etc.). Trek II SB-2500A String Bass Unit

*Trek II is a registered trademark of Trek II Products, Inc.
Copyrighted images by Trek II Products, Inc., used with permission
*Speakeasy Music is a registered trademark of Speakeasy Vintage Music
Copyrighted images by Speakeasy Vintage Music, used with permission
Leslie Two Speed Controller | Percussion | Smooth Drawbars |
BassMon | Mo'Bass | Tremolo Switches | Rebuilt B3 Tube Preamp |
Solid State Preamp | Reverb | Transposer | Combo Preamp | String Bass