Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / DIY Kits & Electronic Building Blocks |
| Origin | - |
| Model Number | Zhongxia S66E |
| Circuit Type | Six-Tube Superheterodyne |
| Power Supply | 3V DC (2x AA Batteries) |
| Frequency Range | 525 kHz - 1605 kHz (AM Band) |
| Speaker Impedance | 8 Ohms |
| PCB Material | FR-4 Fiberglass |
| Assembly Status | Fully Assembled and Tested |
| Enclosure Material | High-Impact ABS Plastic |
| Primary Use Case | Electronics Education and Hobbyist Learning |
| Package Contents | Radio Unit, User Manual, Warranty Card |
Anonymous
Mar 30, 2026
Rating: 5/5
Great classroom demonstration tool
As an electronics instructor, having a few of these pre-assembled units is invaluable. When students get stuck debugging their own kits, they can compare voltages and waveforms against this working S66E model. The build quality is consistent across the five units I ordered.
Anonymous
Mar 24, 2026
Rating: 4/5
Good educational value
The layout of the PCB is very clear, making it easy to trace the signal path from the antenna to the speaker. It's a classic six-tube design that really helps visualize how superheterodyne receivers work. Only wish it came with a schematic printed on the box.
Anonymous
Mar 20, 2026
Rating: 5/5
Saved me hours of troubleshooting
I struggled with my own kit assembly and couldn't get the oscillator to start. Buying this finished S66E helped me realize I had a faulty transistor in my own build. The comparison made fixing my project easy. Great value for the price.
Anonymous
Mar 11, 2026
Rating: 5/5
Works right out of the box
Inserted two AA batteries and immediately heard a clear broadcast. No complex setup required. It's encouraging to see a working electronic device that you can actually understand by reading the manual. Perfect starter piece for any electronics bench.
Anonymous
Mar 08, 2026
Rating: 4/5
Solid reception, simple design
The superheterodyne circuit works exactly as expected. Sound quality is decent for a small 8-ohm speaker. The casing feels a bit lightweight, but for a teaching tool, it's perfectly adequate. Tuning is smooth and the dial markings are legible.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for learning radio theory
I bought this finished unit to compare against the kit version I built last month. The soldering on this OEM product is flawless, and the alignment is spot on. It picks up local AM stations clearly without much static. Highly recommended for students who want a reference model.
Q: Can I modify the circuit to receive FM signals?
A: This unit is specifically designed and aligned for the AM broadcast band (525-1605 kHz). Modifying it for FM would require significant component changes and redesigning the RF front end, which is beyond standard modifications.
Q: What should I do if there is no sound when I turn it on?
A: First, check that the batteries are inserted with the correct polarity and have sufficient charge. Next, ensure the volume potentiometer is turned up. If issues persist, check the speaker connection wires inside the case.
Q: Is a schematic diagram available for this finished product?
A: Yes, the user manual included in the package contains the full schematic diagram for the S66E six-tube superheterodyne circuit, along with voltage test points for educational purposes.
Q: Is the enclosure durable enough for daily student use?
A: The ABS plastic enclosure is designed to withstand normal handling in a classroom or home workshop environment. However, it is not impact-proof, so we recommend treating it with care to avoid cracking the case.
Q: Does this come with batteries included?
A: No, the Zhongxia S66E does not include batteries. You will need to provide two standard AA batteries to operate the radio.
Hanyue Cordura N66 Rafting Dry Bag - Ultra-Light Waterproof Storage for Outdoor Swimming and Trekking
$35.70
Sketchbook for Casual Drawing, Acrylic Marker and Watercolor Pad, Square Pocket Art Book, Portable Travel Journal with Thick 230g White Cardstock
$5.50
Wenxin Tang Calligraphy Copybook for Beginners, Regular Script Duobao Pagoda, Running Script Lanting Preface, Small Kai Lingfei Jing, Brush Character Cards
$23.80
Resistor NXBU714 for ABB ACS800 Inverter
$560.00
3D Printing Pen for Kids - Edible Malt Sugar Art DIY Kit for Birthdays (Age 6+)
$39.00
Professional Rotating Car Tire and Wheel Cleaning Rack – Effortless Washing Stand
$245.00
Nangong Wenfang Three-Character Classic Small Regular Script Copybook – Transparent Cards for Calligraphy Practice Beginners
$69.00
Over-Washing Machine Shelf, Multi-Function Flip-Top Storage Cabinet for Toilet, Bathroom Floor-Standing Unit with No Drilling Required
$32.88
UGREEN Cable Organizer, Magnetic Desktop Data Wire Fixer, Phone Charging Clip and Cord Collector
$15.90
Compact Manual Water Pump Dispenser for Home Desktop Use – Mini Hand-Press Faucet for Large Water Buckets
$23.10
Traditional Sheepskin Rattle Baby Chewable Old-Style Handmade Newborn Wave Drum Toy for Children 0-6 Months
$17.80
Amazon Best Seller Clearance - Outdoor Waterproof Dry Bag for Swimming, Rafting, Snorkeling, and Diving
$135.00
Huirui 420AB Fast-Curing Silicone Adhesive - High-Strength Instant Glue for Bonding Silicone Metal Plastic and Velcro
$36.00
IGBT Module FP15R12KE3/FP25R12KE3/FS50R12KE3/FS75R12KE3
$250.00
3F UL Gear Ventilated Waterproof Dry Bag – Compressible Storage for Sleeping Bags, Clothes, and Swim Gear
$40.80
Martini 100% Cotton Watercolor Paper 200g/300g Thickened Art Sketch Paper 4K Drawing Paper
$12.00
Flameless Aromatherapy DIY Kit - Natural Crystal Diffuser Stones for Home Decor and Demagnetizing
$4.68
![[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment](https://www.gosteppe.com/cache/small/product/268910/legacy-main-034f7c58b79ebda262b6a7f8.png)
[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment
$7.90
3M Industrial Scouring Pad for Polishing, Cleaning, and Rust Removal - Bulk Factory Supply with Aluminum Oxide
$7.20
Bull Socket Storage Box - Multi-Outlet Power Strip with Cord, Home Multifunctional Desktop Cable Organizer, Power Junction Board
$85.90
Used Car Tires 80-90% New, Sizes 165/185/195/205/215/235/60/70/75 R13/R14/R15
$65.00
BBP Angular Contact Ball Bearings 7000 7001 7002 7003 7004 7005 7006-E-J
$14.08
Baby Rattle with Teether for 0-1 Year Olds; Ideal Gift for Children's Day
$14.80
Meiyike Granular Sheep Manure Fertilizer, Fermented and Composted for Vegetables and Flowers, Home Potted Plants, Garden Soil Activator
$37.54
Face Towel Storage Box Wall-Mounted Bathroom Tissue Holder
$2.98
Baby Rattle Toy - Chewable Wooden Handheld Drum with Sheepskin, Traditional Newborn Toy for Boys and Girls
$13.00
Mineral Water Bucket Inverted Stand 6L Bottle Pump Dispenser Manual Pressure Water Extractor for Water Coolers
$2.09
Marie's Sketch Blending Stumps & Makeup Sponges – Professional Art Supplies for Students
$6.06
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Hot Pot and BBQ Odor Removal
$39.00
Wen Zhengming Small Regular Script: Three Versions of Thousand Character Classic, Two Versions of Red Cliff Ode, Close-Up Copying Cards, Wen Zhengming Calligraphy Model Book
$10.00
![[Youxin Electronics] Soil Moisture Meter Detection Module, Soil Moisture Sensor for Intelligent Robot Cars](https://www.gosteppe.com/cache/medium/product/3877/legacy-main-eca7a3fa750966e5dca86bbf.webp)
![[Puzhong Brand Store] 51 Microcontroller Learning Board Development Board Jiangxie Tech STC89C52 DIY Kit](https://www.gosteppe.com/cache/medium/product/1885/legacy-main-0474e8371f211cc54ab452b5.webp)
![[Corrosion-Resistant] DFRobot Capacitive Soil Moisture Sensor Module Dry/Wet Detection](https://www.gosteppe.com/cache/medium/product/3259/legacy-main-2f0d3454b36b32391d263648.webp)
