Fairfield Circuitry Randy's Revenge
This powerful and versatile ring modulator transforms anything you play into a whole new world of musical possibilities. By multiplying two signals, and outputting the sum and difference of all frequencies involved, you create exotic sounds previously unimagined. You control the all-analog, pure sine wave oscillator with the Hi/Lo toggle and the Frequency control to create lush tremolo/vibe effects, rich bell tones, tuned intervals and vintage synthesizer sounds, then adjust the low pass filter and the wet/dry mix to fine tune it all as intense or as subliminal as you like.
A Control Voltage jack gives you and your expression pedal direct control over both the oscillator and low-pass filter’s frequencies. Six easily-accessed, programmable micro-switches inside the back of the pedal make it simple to control even more, with two-at-a-time stacking allowing for unique and fascinating interactions between parameters. Because the internal oscillator is also available as an output, this pedal can be used as a stand-alone voltage-controlled oscillator (VCO). And all of this comes with a remarkably small footprint, and a remarkably small current draw, easily powered by your 9V power supply.
Fairfield Circuitry Randy's Revenge Features:
- CV Jack (Control Voltage) for Expression Pedal
- 6 Programmable, Internal Micro-Switches
- Volume, Mix, Low Pass Filter (LPF), Frequency Controls
- Square/Sine Waveshape, Hi/Lo Frequency Toggles
- True Bypass
- Standard 9v DC Operation
- 85mA Current Draw
- 4.7” (11.938cm) x 3.8” (9.652cm)

Shipping
Free International Shipping on Effect Pedal Orders over $400. Use coupon code: INTLSHIP.
*Not valid with other discount codes.
Proguitarshop.com will ship completed orders Monday-Firday. Order placed and paid before 8:30 PST will ship that same day. All completed orders after the cutoff time will ship within 24 hours. Proguitarshop.com does not ship on Saturday or Sunday.
Most orders shipping within the US will ship USPS Priority Mail with delivery confirmation. Standard delivery time is 2-3 days. An automated email with a a delivery confirmation number will be sent. This number may be entered at USPS.com, however, the Priority Mail service does not offer step by step tracking. It will only update once the item has been delivered.
Most orders shipping outside the US will ship USPS Express International. The estimated deilvery time for international orders is 3-5 days. All international orders will ship with a tracking number. An automated email with tracking details will be sent.
Larger items such as amplifiers and guitars may be shipped via UPS Ground service in the US and UPS World-Wide Expedited service for international orders. An automated email with tracking information will be sent to the recipient.
Worldwide shipping excludes the following brands: T-Rex, Vox, Marshall, Korg, Fender, Squire, Gretsch, Schecter, Orange, Tech 21, TC Electronic, BOSS/Roland, Pedaltrain, Voodoo Lab, MXR/Dunlop, Ibanez, ISP Technologies, EMG.
Returns
Download PGS Return Form (104k PDF)
If you are not 100% satisfied with your purchase you may return it for a full refund of the original purchase price. We offer a 60-day return policy on all pedals. We ask that you please return the product in the original product packaging along with all included materials (manual, warranty card, all accessories) and in the original condition that it was received. Pedals returned in undesirable condition (scratched, nicked, or modified) may be subject to a restocking fee of up to 25% of the purchase price. We must receive the product within 60 days of you receiving it. All guitar and amplifier purchases must be returned within 15 days of receiving the unit with all original packaging and materials.
Please pack carefully. Do not attach a label to manufacturer’s box. Use a shipping box for packing your return. You may choose any shipping service you like to return the package to us. We strongly recommend some sort of tracking or delivery confirmation and insurance. Lost packages happen; this will help protect you from loss.
Returns are processed twice a week, usually within 72 hours of receiving them. Refunds will be issued to the credit card or Paypal account used for purchase. Please keep in mind that credit card refunds can take up to 10 business days to post on the account once the refund has been processed.
Free International Shipping on Effect Pedal Orders over $400. Use coupon code: INTLSHIP.
*Not valid with other discount codes.
PGS One-year Replacement Warranty on All Pedals
Any manufacturer's defect in your pedal within one year of purchase will result in the replacement of that pedal free of charge
60-day Return Policy on All Pedal Purchases.
Return your new pedal for any reason within 60 days towards another pedal or a full refund
15-day Return Policy on All Guitar & Amp Purchases.
Return your new Guitar or Amp for any reason within 15 days towards another purchase or a full refund
Lifetime Product Support to Original Owner for the Life of the Product
Comprehensive Quality Check and Setup on Every Guitar.
If you are not 100% satisfied with your purchase you may return it for a full refund of the original purchase price. Please return the product in the original product packaging along with all included materials (manual, warranty card, all accessories) and in the original condition that it was received.
Items returned in undesirable condition (scratched, nicked, or modified) may be subject to a restocking fee of up to 25% of the purchase price. We must receive the product within 60 days of you receiving it for pedals and 15 days of receipt for guitars and amps. All guitar and amplifier purchases must be returned with all original packaging and in original condition. Please do not remove the protective plastic coverings on guitars and amplifiers (where applicable) until you know you are keeping the unit. Also, please be aware of the light finish scratches that may occur when playing a guitar from picks, fingernails, shirt buttons, and belt buckles. These are not acceptable on a return so please be careful.
Please pack carefully. Do not attach a label to manufacturer’s box. Use a shipping box for packing your return. You may choose any shipping service you like to return the package to us.
We strongly recommend some sort of tracking or delivery confirmation and insurance. Lost packages happen; this will help protect you from loss. Returns are processed twice a week, usually within 72 hours of receiving them.
Refunds will be issued to the credit card or Paypal account used for purchase. Please keep in mind that credit card refunds can take up to 10 business days to post on the account once the refund has been processed.

