Pedal mods

Morley Power Wah Volume boost mod

Here’s a mod for the Morley Power Wah Volume pedal. The mod places the boost as a stand alone circuit, giving the option to toggle it in with an extra stompswitch installed with a LED indicator for effect on. It affects both volume and wah circuit in this configuration.

  • Morley Power Wah Volume boost mod
  • Morley Power Wah Volume boost mod
  • Morley Power Wah Volume boost mod

Boss pedal ACA to PSA mod

Updating old boss pedals for PSA adapter.

  • ACA to PSA mod

ZOOM MS-70CDR custom paint

A custom paintjob on a ZOOM MS-70CDR Multistomp pedal.

  • Zeta Sound Zoom MS-70CDR custom paint
  • Zeta Sound Zoom MS-70CDR custom paint
  • Zoom MS-70CDR
  • Zoom MS-70CDR guts
  • Zeta Sound Zoom MS-70CDR guts
  • Zeta Sound Zoom MS-70CDR guts
  • Zeta Sound Zoom MS-70CDR guts
  • Zeta Sound Zoom MS-70CDR guts
  • Zeta Sound Zoom MS-70CDR chassie
  • Zoom MS-70CDR inside spring
  • Zeta Sound Zoom MS-70CDR

Boss DS-1 OD mod

Turning the Boss DS-1 into something more of an overdrive, giving it a more dynamic response. Changes are made to the transistor booster stage, OP-amp gain stage and the overall frequency respons. Check Thomas Ziden as he gives an somewhat unusual pedal demo.


Boss pedal latching/momentary mod

Ever since I made the T-rex Mudhoney 2:nd stage mod the idea has been there to try something similar on a Boss or Ibanez pedal. So here it is on a Boss DS-1 pedal, the feature to choose a latching or momentary bypass. The mod can be performed on any model from Boss or Ibanez that’s using their standard toggle circuit.

Zeta Sound Bypass mod

Ibanez WH10 Volume mod

Added a volume pot to an Ibanez WH10 wah pedal. Effecting the volume when the effect is engaged.

ibanez WH-10
Zeta Sound IbanezWH10 mod

T-Rex Mudhoney 2:nd stage mod

2:nd stage mod of the T-rex Mudhoney. Installing a threeway switch wich in uper pos lets the circuit clip over AA144 germanium diodes, middlepos no diodes and down pos silicone diodes. Replaced the Boost switch with a stompswitch and a indicating led in its original position. Added an 2:nd circuit board that controls the fet bypass circuitry and has the option of using the stompswitch action as normal latching or momentary. Finaly a Tune pot to balance the gain against the Boost. More Info here.

  • Zeta Sound T-Rex Mudhoney mod
  • Zeta Sound T-Rex Mudhoney mod
  • Zeta Sound T-Rex Mudhoney mod
  • Zeta Sound T-Rex Mudhoney mod
  • Zeta Sound T-Rex Mudhoney mod
  • Zeta Sound T-Rex Mudhoney mod
  • Zeta Sound T-Rex Mudhoney mod
  • germanium diode AA144

Univox Uni-Tron 5

Since the Uni-Tron5 pedal requires two 9V batteries I had it modified with a charge pump allowing it to take a normal 9VDC adapter or one single battery. In the now empty battery compartment I added a pot for the output volume.

  • Uni-Tron 5
  • Uni-Tron 5
  • precision rectifier/led driver in the Uni-Tron 5
  • opto electronic module in the Uni-Tron 5
  • Uni-Tron 5 Schematic
Zeta Sound Uni-Tron5 mod

T-rex Mudhoney 1:st stage mod

Mod of a T-Rex Mudhoney. Installed a threewayswitch wich in left pos lets the circuit clip over red leds, centerpos no diodes and right pos silicone diodes. Replaced the Boost switch with a stompswitch and a indicating led in its original position.

  • Zeta Sound Mudhoney mod
  • Zeta Sound Mudhoney mod
  • Zeta Sound Mudhoney mod
  • Zeta Sound Mudhoney mod
  • Zeta Sound Mudhoney mod
  • Zeta Sound Mudhoney mod

Rehousing
Added some images from a rehousing project of a Danelectro Transparent Overdrive.

  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing
  • Zeta Sound Danelectro rehousing

Boss CE-2

The classic Boss CE-2 chorus moded with chorus/vibrato switch and a speed range selector switch.

  • Zeta Sound Boss CE-2 mod
  • Zeta Sound Boss CE-2 mod
  • Zeta Sound Boss CE-2 mod
  • Zeta Sound Boss CE-2 mod

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