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.
Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, and Pu'erh Loose Leaf Tea in Porcelain Jars
$140.41
Transparent Retainer Storage Case – Portable Soaking and Cleaning Box for Orthodontic Appliances and Dentures
$8.42
Original Wang Xizhi Huangting Small Regular Script Calligraphy Copybook for Soft/Hard Tip Pens Tear-Off Card Precise Tracing Kaishu Huan'e Tie
$35.70
Foldable Kitchen Sink Dish Drying Rack - Silicone Roll-Up Mat and Countertop Organizer
$25.40
Rapid Folding Shopping Cart, Small Trolley for Stairs, Lightweight Portable Home Handcart, Supermarket Pushcart and Vegetable Basket
$178.39
Over-Toilet Storage Rack - No-Drill Toilet Paper Holder with Multi-Compartment Shelves for Wet Wipes and Aromatherapy
$19.71
Stainless Steel Planter Pot - Outdoor Vegetable and Flower Growing Box for Balcony, Rooftop, Courtyard, Auto-Drainage, Customizable
$42.50
Stainless Steel Over-Toilet Storage Rack, Multi-Function Floor-Mounted or Wall-Mounted Multi-Tier Organizer for Bathroom, Toilet, and Laundry
$50.00
![[Chip 3.0 Upgraded Model] Senzhou TDS Water Quality Tester for Tap and Drinking Water Health Monitoring](https://www.gosteppe.com/cache/small/product/268996/legacy-main-32173fe50b846ac0e87ae26e.webp)
[Chip 3.0 Upgraded Model] Senzhou TDS Water Quality Tester for Tap and Drinking Water Health Monitoring
$22.90
Here and Now Pocket Calligraphy Copybook: Wen Zhengming Small Regular Script for Adult Beginners
$18.00
Southern Red Agate Loose Beads for DIY Crystal Jewelry Making, Round Bead Accessories and Materials
$1.10
3-Tier, 4-Tier, 5-Tier Double-Layer Drainage Rack, Water Bucket Stand, Floor-Standing Thickened Rack
$276.32
Multi-Layer Over-Toilet Storage Rack for Bathroom, Drill-Free Floor Stand for Washing Machine and Balcony Organization
$46.96
Thickened Industrial Scouring Pad Emery Stainless Steel Abrasive Cloth Pot Scrubber Rust Removal and Polishing Wheel
$7.28
Wall-Mounted Bathroom Toilet Paper Holder and Tissue Dispenser Rack
$49.00
Arches French Watercolor Paper 300g/640g/850g, Cold/Hot Press, 100% Cotton, Deckled Edge, 2K/4K/8K
$29.60
Wen Xin Tang Yan Zhenqing Duobao Pagoda Stele Calligraphy Copybook, Tang Regular Script, Adult Beginner Calligraphy Practice Cards
$49.30
![[Shenzhen Best Seller] Premium Wearable Negative Ion Air Purifier - Neck-Hanging Portable Electronic Mask](https://www.gosteppe.com/cache/small/product/268987/legacy-main-5f71c8070119587e6427efe9.webp)
[Shenzhen Best Seller] Premium Wearable Negative Ion Air Purifier - Neck-Hanging Portable Electronic Mask
$298.00
Teruisi Electric Fruit and Vegetable Slicer, Multifunctional Chopper for Cafeterias and Hotels, Cutter for Green Onions, Chili Peppers, Radishes, and Ginger
$3,798.00
Waterproof Phone Pouch for Diving, Swimming, Rafting, and Hot Springs, Sealed Underwater Storage Bag with Waist Strap
$12.90
Premium Thick Cardstock Lin Zexu Representative Small Regular Script Infinite Life Sutra Close-Up Copying Calligraphy Copybook Regular Script for Beginners
$39.80
Zunjue Ticket-style 100% Cotton Watercolor Paper 300g Cold Press for Artists with Deckled Edges
$10.20
Kids' 3D Printing Pen – 3D Stereoscopic Drawing Toy for Girls, Perfect Birthday Gift
$104.66
Mifaner Handmade Watercolor Sketchbook – Oil Painting Series Canvas Journal, Travel-Friendly Mini Notebook for Acrylic Markers
$16.90
(Sasha Exclusive) Fat Small Card
$1,399.00
Silicone Faucet Side Drain Mat, Foldable Splash-Proof Pad for Kitchen Sink and Bathroom Washbasin
$4.93
Breathable Portable Invisible Aligner Case with Lanyard – Durable Hygienic Storage for Orthodontic Retainers and Dentures
$18.10
Snail-Specific Slug & Snail Killer Scatter-Type Anti-Pest Granules for Vegetable Gardens Slugs Apple Snails Fruit & Vegetable Fields
$10.00
Industrial Scouring Pad for Woodworking, Paint Sanding, and Polishing - Ultra-Fine Hand-Tear Sheets
$135.70
Custom G80 Manganese Steel Lifting Chain - High-Strength Alloy Chain Rigging for Hoisting and Cranes
$655.00
![[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)
