Synthrotek Passive Ring Modulator KIT Dalek Voice

Brand: Synthrotek Sold By: TopSelected
$88.80 In Stock
Ships from United States Arrives in 7-14 business days
Item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Delivery:
02
July2026
-
13
July2026
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check$5 Credit If Delayed
checkFull Refund If Item Is Damaged
check15-Day Full Refund If No Updates
check30-Day Full Refund If Not Delivered
Synthrotek Passive Ring Modulator KIT Dalek Voice

Synthrotek Passive Ring Modulator KIT Dalek Voice

$88.80

Product Details

The Synthrotek Passive Ring Modulator Kit is the classic 2 transformer - 4 diode ring modulator circuit in a conveniently small package. Passive ring modulation is a bizarre and otherworldly sound effect appearing in such diverse places as sci-fi robot voices, trippy psychedelic guitar solos, metallic analog synth samples, and more! There's nothing on this planet that sounds like ring modulation and now you can get it for cheap! Experiment with all of your gear and you'll definitely come up with some surprising tones you never knew you had access to.

Operation: Two input signals are multiplied together and the resulting output is the sum and difference of the frequencies of each. The germanium diode ring provides the effect with a minimum of signal distortion while the transformers segregate your audio sources for the internal circuitry. The circuit requires no external power supply!

The three jacks are Carrier Wave 1, Carrier Wave 2, and Output. Plug two different signals into Carrier Waves 1 & 2 and listen to the sound flow. You can actually use any two jacks as inputs and the third as the output; each combination gives you a different sound.

Measuring 2 9/16" x 1 3/16", the Passive Ring Modulator PCB is a compact, high quality circuit board. The PCB allows for the transformers and diodes to be soldered directly to the board neatly and a ground plane helps reduce interference from external noise and RF.

The Synthrotek Passive Ring Modulator Kit includes all of the components you'll need to build your very own Ring Modulator. The build is a great beginner's 1st project with a big payoff!



Some video action:

Synthrotek Passive Ring Modulator Kit: Build \u0026 Demo

Video will open in a new window
Using the eBay App? Paste link into a browser window:

Synthrotek.com Passive Ring Modulator Mod w/ MicroMoog Moog \u0026 Yamaha CS-5

Video will open in a new window
Using the eBay App? Paste link into a browser window:

Synthrotek Ring Modulator w/ 16 step analog Sequencer and DS-8 Drum Synth!

Video will open in a new window
Using the eBay App? Paste link into a browser window:







Note: the Passive Ring Modulator needs a hot signal in order to get an effect. Guitar signals and some line level signals will need to be boosted.


Case not included.

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges first item USD 5.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 9.99 and additional item USD 4.0 each.

Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Please contact us to initiate your return, we'll offer return label for free. Otherwise we are not responsible for the return shipping costs of the items.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 

The Synthrotek Passive Ring Modulator Kit is the classic 2 transformer - 4 diode ring modulator circuit in a conveniently small package. Passive ring modulation is a bizarre and otherworldly sound effect appearing in such diverse places as sci-fi robot voices, trippy psychedelic guitar solos, metallic analog synth samples, and more! There's nothing on this planet that sounds like ring modulation and now you can get it for cheap! Experiment with all of your gear and you'll definitely come up with some surprising tones you never knew you had access to.

Operation: Two input signals are multiplied together and the resulting output is the sum and difference of the frequencies of each. The germanium diode ring provides the effect with a minimum of signal distortion while the transformers segregate your audio sources for the internal circuitry. The circuit requires no external power supply!

The three jacks are Carrier Wave 1, Carrier Wave 2, and Output. Plug two different signals into Carrier Waves 1 & 2 and listen to the sound flow. You can actually use any two jacks as inputs and the third as the output; each combination gives you a different sound.

Measuring 2 9/16" x 1 3/16", the Passive Ring Modulator PCB is a compact, high quality circuit board. The PCB allows for the transformers and diodes to be soldered directly to the board neatly and a ground plane helps reduce interference from external noise and RF.

The Synthrotek Passive Ring Modulator Kit includes all of the components you'll need to build your very own Ring Modulator. The build is a great beginner's 1st project with a big payoff!



Some video action:

Synthrotek Passive Ring Modulator Kit: Build \u0026 Demo

Video will open in a new window
Using the eBay App? Paste link into a browser window:

Synthrotek.com Passive Ring Modulator Mod w/ MicroMoog Moog \u0026 Yamaha CS-5

Video will open in a new window
Using the eBay App? Paste link into a browser window:

Synthrotek Ring Modulator w/ 16 step analog Sequencer and DS-8 Drum Synth!

Video will open in a new window
Using the eBay App? Paste link into a browser window:







Note: the Passive Ring Modulator needs a hot signal in order to get an effect. Guitar signals and some line level signals will need to be boosted.


Case not included.

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges first item USD 5.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 9.99 and additional item USD 4.0 each.

Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Please contact us to initiate your return, we'll offer return label for free. Otherwise we are not responsible for the return shipping costs of the items.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 

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