Difference between revisions of "Cardinal Tremolo"

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* The Fender Super, and
 
* The Fender Super, and
 
* The Fender Twin
 
* The Fender Twin
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Per the build notes document, this is a circuit by Jon Patton and was extensively influenced by previous tremolo pedal designs.  In the build notes, Jon credits:
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<blockquote>
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<div style="background-color: #222222; border: 2px solid #e69710; padding: 10px; {{border-radius| 8px}}">
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This circuit is based in part on RG Keen's Pro-Vibrato schematic. The LFO was adapted from CultureJam's Shoot the Moon Tremolo, which in turn adapted from
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Dann Green's Tremulus Lune. Thanks to Jimi Photon for the inspiration and samhay, ~arph, and duck_arse for discussions and suggestions on DIYStompboxes.
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</div>
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</blockquote>
  
 
==Controls==
 
==Controls==
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==Schematic==
 
==Schematic==
  
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[[File:1776Effects_CardTremSchematic.png|center|frame|&copy; Copyright 2016, JRM/1776Effects.com]]
  
 
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[[Category:Pedals]]
 
[[Category:Pedals]]
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[[Category:Tremolo Pedals]]
 
[[Category:Thermionic Pedals]]
 
[[Category:Thermionic Pedals]]
 
[[Category:PCB-Only Pedals]]
 
[[Category:PCB-Only Pedals]]

Revision as of 18:49, 12 February 2018

The Cardinal Tremolo v1 is a tremolo effect evocative of the harmonic tremolo effect that was available from certain Fender amps, from 1960 to 1963. These amps include:

  • The Fender Concert,
  • The Fender Pro,
  • The Fender Showman,
  • The Fender Super, and
  • The Fender Twin

Per the build notes document, this is a circuit by Jon Patton and was extensively influenced by previous tremolo pedal designs. In the build notes, Jon credits:

This circuit is based in part on RG Keen's Pro-Vibrato schematic. The LFO was adapted from CultureJam's Shoot the Moon Tremolo, which in turn adapted from Dann Green's Tremulus Lune. Thanks to Jimi Photon for the inspiration and samhay, ~arph, and duck_arse for discussions and suggestions on DIYStompboxes.

Controls

  • Knob 1 - "Depth": Sets the depth of the volume swell of the tremolo
  • Knob 2 - "Rate": Sets the speed of the swell of the tremolo
  • Switch 1 - "Select": Allows selection between Harmonic and Standard Tremolo functions

General Information

http://1776effects.com/wp-content/uploads/2015/03/Cardinal-Tremolo.pdf

We currently only have Version 1 of the Cardinal Tremolo pcb. It would appear that 1776 Effects has also released a Version 2. The pedal makes available both the amplike "Harmonic" tremolo, as well as a standard volume-swell tremolo effect. A quick look at both the schematics for v1 and v2 suggests that the only big difference between the two is that the Version 2 board takes what are trimpots (set-em and forget-em) on the board and exposes them as full potentiometers.


Phase Inversion

Pedal Manual

Schematic

© Copyright 2016, JRM/1776Effects.com

Additional Sources