V847 Wah-Wah Upgrade PCB

V847 Red Fasel Inductor

We offer upgrade PCB's for VOX V847 vintage style wah-wah pedals. Our Clyde/Fasel V847 Vintage Wah board is a direct drop in replacement for most of the V847 reissue pedals and can be wired to most any other VOX or Dunlop pedal housings with the correct potentiometer and jacks. This board will update your pedal and give it that deep throaty wah sound you've been missing. The high quality inductor and Wima film capacitors provide high-Q filtering that extends the wah range and depth.

Our boards are based on the original Clyde McCoy design featuring Fasal inductors, BC107 transistors and super high quality Wima Film capacitors. The latest REV-B PCB includes trimmers for BIAS and RESONANCE adjustment. The boards are available with RED or YELLOW Fasel inductors and remain as true as possible to the original design. The Fasel RED offers a smoother classic type wah tone while the YELLOW offers a sharper more cutting type tone.

True Bypass Option

3PDT Switch

You may also choose to wire your pedal for true bypass operation by replacing the stomp switch. See the REV-B schematic for the direct bypass switch wiring diagram. We offer an inexpensive 3PDT type switch, or you may prefer to locate your own heavy duty type.

Our PCB's are professionally designed and are fabricated with double sided and plated through pads and holes. All parts and connector pins are clearly labeled with silkscreen legends. The extra ground plane perimeter flood provides enhanced shielding/grounding. The PCB also accepts the original VOX OEM round type inductor used in many of the V847 reissue pedals.


Plug-And-Play for Older VOX V847 Pedals Only

This board is an upgrade for the original Vox V487 wah (not V847A or others) and will only directly replace V847 units like shown below. Please make sure you have this type wah before ordering. Our kit does not include any wiring or other connectors, only the PCB and optional switch if ordered. While it's possible to adapt this board to other wah pedals, we cannot assist or help with other types of modifications or installs. Thus, if you plan to adapt this board to a different pedal, then you will have to make all the necessary wiring changes or other modifications yourself.

Example of a drop-in upgrade using the original wiring

Original VOX V847 Drop In Upgrade

Example of a pedal rewired for true bypass, external DC & status LED

V847 True Bypass, Ext DC Power & Status LED

Credit Card and PayPal Direct Ordering

The V847 PCB is available prepaid direct for $50.00 plus $5.00 for shipping (within the US). We ship all orders via FedEx Ground in the US. Please contact us prior to ordering if you require other shipping arrangements. Any order can be returned for full credit or refund (less shipping, insurance and miscellaneous fees) within a 14 day trial period from the date of shipment. All trial returns must be returned in undamaged, unscratched and saleable condition with the original packing materials and shipping box.

NOTE THAT OUR KIT ONLY INCLUDES THE ASSEMBLED/TESTED V847 PCB. THE 3PDT SWITCH IS OPTIONAL AND AVAILABLE FOR AN EXTRA $5 CHARGE. THE WIRING, CONNECTORS AND OTHER PARTS REQUIRED FOR A FUNCTIONING WAH ARE NOT INCLUDED. THUS, YOU MUST PROVIDE ANY WIRING, CONNECTORS, JACKS, POT ETC IF NEEDED. THE MATING 8-PIN MOLEX CONNECTOR SHELL AND CRIMP PIN PART NUMBERS ARE LISTED IN THE REV-B SCHEMATIC AND ARE SOLD AT MOUSER, DIGIKEY AND MANY OTHER ELECTRONIC SUPPLY STORES. THE REV-B SCHEMATIC ALSO SHOWS SEVERAL DIFFERENT WIRING OPTION DIAGRAMS IF YOU CHOOSE TO REWIRE YOUR PEDAL FOR TRUE BYPASS.

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