TouchTone 4029 DIY Kit

Marsoni

M251S

$89.00

Get it in 3 business days with 1 day shipping. Friday, May 29

TouchTone 4029 DIY KitTouchDescription: TouchTone is a feedback amplifier system using all six inverters (inverting amplifiers) of a CMOS 4049 chip. Use the inverters in combined digital analog mode. Two pairs are used as variable frequency oscillators (lower and high frequencies) and third pair is used in mixed amplifying filtering oscillating (feedback) mode to play around with the existing pads all over the system. Combining touchable pads in various manners can bring

Easy Shipping

Quick Dispatch:

Your TouchTone 4029 DIY Kit orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your TouchTone 4029 DIY Kit ships.

Need Help?
Questions about TouchTone 4029 DIY Kit, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for TouchTone 4029 DIY Kit in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

Just got these pillows today. I have never spent dollars on pillows; but I wanted Hotel Grand like the ones that I sleep on in the Hotels and these fit the bill. Large King is what I got and so far so good. Firm and Squishy like I like. I was impressed with the quality -- now lets just give them a few days rest. I am sure they will be GRAND.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 18, 2026

Verified Purchase

Carla

Natrona Heights, US

★★★★★ 5

Hotel Grand Pillows

Size: King

Very soft, comfortable and fluffy. I’m a side sleeper and don’t feel they go flat. I bought 2 king size pillows. I was initially looking for fluffy feather pillows… but this is the next best thing. I was pleasantly surprised. Turned out to be more comfortable than I thought they would be.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 4, 2026

Verified Purchase

Mason

Waukegan, US

★★★★★ 3

Not worth it

Size: King

Not nearly as well filled as the pictures portray. Not worth the price.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 14, 2026

Verified Purchase

KimO

Fort Morgan, US

★★★★★ 5

So comfortable!

Size: King

Great pillows and really comfortable. They do a great job in adjusting support on whether i'm sleeping on my side or my back.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 10, 2026

Verified Purchase

Yisenia Medina Pérez

Boise, US

★★★★★ 5

Hotel Grand Set of 2 pillows

Size: King

Excellent quality and comfort. The pillows are soft but with the perfect support, ideal for any sleeping position. They feel fresh thanks to the cotton cover and keep their shape very well. Without a doubt, a great purchase for a hotel-like break at home.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 3, 2026