Manufacturer's description
Ring modulation at its finest, in a considerably small package, powered by a typical 9V supply. All analogue, hand-stamped, with a pure sine wave oscillator, low-pass filtered with class and musicality. These are the requirements of warp speed space travel—a regular occurrence when dealing with Randy’s hardware.
At low oscillator frequencies, Randy creates rich trem/vibe effects, from excruciatingly slow to chopped rhythmic flavours. At higher frequencies, you’ll find thick bells, tuned intervals, and lo-fi synth textures. Experiment with the LPF cutoff and the MIX to reach tones as strange or as subtle as desired.
Expanded CV capabilities allow Randy to control and be controlled by other CV devices. The stereo CV jack is switch-programmable for use with an expression pedal or as a dual-channel CV port. Oscillator and LPF frequencies are both voltage-controllable. The oscillator can also serve as an output, making Randy a stand-alone VCO.
THE VOLTAGE-CONTROLLED OSCILLATOR
The VCO generates a low-distortion sine wave.
HI/LO switch: sets range — LO (0.5–45 Hz), HI (18 Hz–2.4 kHz)
FREQ: oscillator rate
SQ/SI switch: square or sine waveform
THE FOUR-QUADRANT MULTIPLIER
Ring modulation multiplies two signals, producing the sum and difference of all frequencies. Ideally, the originals are absent, but some bleedthrough may occur, especially at higher gain.
THE VOLTAGE-CONTROLLED LOW-PASS FILTER
Second-order LPF after the multiplier affects only the modulated signal. Useful for taming harsh results. LPF sets cutoff frequency.
THE INPUT AND OUTPUT SECTIONS
Input buffered by JFET stage (instrument-level ready)
MIX: dry to wet balance
VOLUME: output level (unity ~noon)
True bypass when disengaged
THE CV JACK
Default: use with expression pedal (“wiper to tip”) to control oscillator frequency.
Internal microswitches allow expanded CV routing (see Programmer’s Reference Manual).
NOTES ON POWERING
- 9–9.6 VDC, center-negative regulated supply
- Protected against reverse polarity and overvoltage
- No battery operation
- Input impedance: 1 MΩ
- Output impedance: 1 kΩ
- Current draw: 85 mA
- True bypass
- 1/4" mono in/out, 1/4" stereo CV jack
- Enclosure: 4.7" × 3.8"
How much is my shipping?
Shipping is automatically calculated before you submit your payment information. Simply add items to your cart and proceed to the checkout page, where you'll be offered shipping options and their prices. In the UK, 'next working day' shipping is free if the order value is over £150, and £5 otherwise. We can also ship on a 'next working day before 12pm' service, which costs £6 for orders over £150 and £7.50 for orders under £150.
Do you ship to my country?
Almost certainly - the site will give you an estimate of shipping costs if you add an item to the cart and then enter your country and postcode. If you have specific requirements (such as if you prefer UPS over FedEx, for example) then let us know in advance and we'll try to work something out for you.
Shipping methods
We use a combination of DPD and Royal Mail for the UK, and for international orders it's either DPD, DHL, FedEx, UPS or Royal Mail depending on where you are in the world. If you have a particular preference then try to let us know BEFORE you order so we can look into it for you. Please note that there may occasionally be additional shipping charges if you live in a remote area, depending on what surcharges are applied by the shipper. We'll get in touch to discuss this with you in such cases.
Dispatch times
For UK orders, we normally dispatch the same working day if we get the order before 16:00. If you have a really urgent situation then of course drop us an email before ordering and we'll always do our absolute best to accommodate you.
For international orders, we normally dispatch the same day if we get the order before 13:00 but again, occasionally it might be the next day before we can send it out, and sometimes the couriers may come to collect a little earlier than scheduled which would also push an order into the next day.
Saturday/Sunday delivery
If you're in the UK and you order before 16:00 on a Friday then we can send something for a Saturday or Sunday delivery with DPD. This is FREE for order values over £350, £5 for order values between £75 and £250, and £7 for order values under £75. (NB: this applies to UK mainland addresses only). Please note that any orders placed after 16:00 on a Friday will ship on the Monday.
International shipping times
Most orders are delivered within 3 to 5 working days if sent on a courier service. Royal Mail services can take a lot longer and are often less secure.
Pre-orders
If a product is listed as a pre-order, it means we've ordered it from the supplier but it's not physically in stock yet. The product listing will include an estimated shipping date based on the best information we have from the supplier, but do bear in mind this is subject to change and is not a guaranteed date.
If you place an order containing a mixture of in-stock and pre-order items, we'll normally hold off on shipping anything until the pre-order item(s) have arrived, rather than splitting it into multiple shipments. If you need the in-stock items sooner, we'd recommend placing separate orders. As always, please get in touch if you have questions.
Product Overview
Manufacturer's description
Ring modulation at its finest, in a considerably small package, powered by a typical 9V supply. All analogue, hand-stamped, with a pure sine wave oscillator, low-pass filtered with class and musicality. These are the requirements of warp speed space travel—a regular occurrence when dealing with Randy’s hardware.
At low oscillator frequencies, Randy creates rich trem/vibe effects, from excruciatingly slow to chopped rhythmic flavours. At higher frequencies, you’ll find thick bells, tuned intervals, and lo-fi synth textures. Experiment with the LPF cutoff and the MIX to reach tones as strange or as subtle as desired.
Expanded CV capabilities allow Randy to control and be controlled by other CV devices. The stereo CV jack is switch-programmable for use with an expression pedal or as a dual-channel CV port. Oscillator and LPF frequencies are both voltage-controllable. The oscillator can also serve as an output, making Randy a stand-alone VCO.
THE VOLTAGE-CONTROLLED OSCILLATOR
The VCO generates a low-distortion sine wave.
HI/LO switch: sets range — LO (0.5–45 Hz), HI (18 Hz–2.4 kHz)
FREQ: oscillator rate
SQ/SI switch: square or sine waveform
THE FOUR-QUADRANT MULTIPLIER
Ring modulation multiplies two signals, producing the sum and difference of all frequencies. Ideally, the originals are absent, but some bleedthrough may occur, especially at higher gain.
THE VOLTAGE-CONTROLLED LOW-PASS FILTER
Second-order LPF after the multiplier affects only the modulated signal. Useful for taming harsh results. LPF sets cutoff frequency.
THE INPUT AND OUTPUT SECTIONS
Input buffered by JFET stage (instrument-level ready)
MIX: dry to wet balance
VOLUME: output level (unity ~noon)
True bypass when disengaged
THE CV JACK
Default: use with expression pedal (“wiper to tip”) to control oscillator frequency.
Internal microswitches allow expanded CV routing (see Programmer’s Reference Manual).
NOTES ON POWERING
- 9–9.6 VDC, center-negative regulated supply
- Protected against reverse polarity and overvoltage
- No battery operation
Technical Specs
Shipping Details
How much is my shipping?
Shipping is automatically calculated before you submit your payment information. Simply add items to your cart and proceed to the checkout page, where you'll be offered shipping options and their prices. In the UK, 'next working day' shipping is free if the order value is over £150, and £5 otherwise. We can also ship on a 'next working day before 12pm' service, which costs £6 for orders over £150 and £7.50 for orders under £150.
Do you ship to my country?
Almost certainly - the site will give you an estimate of shipping costs if you add an item to the cart and then enter your country and postcode. If you have specific requirements (such as if you prefer UPS over FedEx, for example) then let us know in advance and we'll try to work something out for you.
Shipping methods
We use a combination of DPD and Royal Mail for the UK, and for international orders it's either DPD, DHL, FedEx, UPS or Royal Mail depending on where you are in the world. If you have a particular preference then try to let us know BEFORE you order so we can look into it for you. Please note that there may occasionally be additional shipping charges if you live in a remote area, depending on what surcharges are applied by the shipper. We'll get in touch to discuss this with you in such cases.
Dispatch times
For UK orders, we normally dispatch the same working day if we get the order before 16:00. If you have a really urgent situation then of course drop us an email before ordering and we'll always do our absolute best to accommodate you.
For international orders, we normally dispatch the same day if we get the order before 13:00 but again, occasionally it might be the next day before we can send it out, and sometimes the couriers may come to collect a little earlier than scheduled which would also push an order into the next day.
Saturday/Sunday delivery
If you're in the UK and you order before 16:00 on a Friday then we can send something for a Saturday or Sunday delivery with DPD. This is FREE for order values over £350, £5 for order values between £75 and £250, and £7 for order values under £75. (NB: this applies to UK mainland addresses only). Please note that any orders placed after 16:00 on a Friday will ship on the Monday.
International shipping times
Most orders are delivered within 3 to 5 working days if sent on a courier service. Royal Mail services can take a lot longer and are often less secure.
Pre-orders
If a product is listed as a pre-order, it means we've ordered it from the supplier but it's not physically in stock yet. The product listing will include an estimated shipping date based on the best information we have from the supplier, but do bear in mind this is subject to change and is not a guaranteed date.
If you place an order containing a mixture of in-stock and pre-order items, we'll normally hold off on shipping anything until the pre-order item(s) have arrived, rather than splitting it into multiple shipments. If you need the in-stock items sooner, we'd recommend placing separate orders. As always, please get in touch if you have questions.
