AM Radio Kit S66E for Soldering Six-Transistor Superhet 535–1605 kHz Red Box 125 x 69 x 29 mm For Teaching Electronics
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The S66E kit is a set for assembling a classic pocket radio that receives broadcasts on medium wave. It is a six-transistor superheterodyne receiver, a classic circuit that clearly demonstrates the principle of receiving amplitude modulated signals. The radio covers the band 535–1605 kHz and, once completed, resembles a real portable receiver with a speaker, scale, and tuning knob. The kit is designed for independent soldering and activation, allowing you to experience the entire journey from individual components to a functioning device. It is suitable for electronics clubs, technical schools, hobby workshops, and anyone who wants to try building a radio with their own hands.
The circuit is based on the proven S66 radio and has been further improved. It includes a two-stage intermediate frequency amplifier, detector, drive transformer, and a pair of output transistors 9013 that drive the built-in speaker. Reception is ensured by an internal ferrite antenna, tuning is done via a rotary capacitor with a scale, and volume is adjusted with a potentiometer. Powering on is indicated by an LED, and a headphone jack is available for quiet listening. The radio operates on a 3 V supply from two AA batteries and the total consumption is less than 13 mA.
- Type – superheterodyne AM radio kit S66E for soldering
- Number of transistors – 6 (3x 9018, 1x 9014, 2x 9013H)
- Frequency range – 535–1605 kHz (medium wave)
- Sensitivity – better than 3 mV/m
- Selectivity – 14 dB
- Power supply – 3 V, 2x AA batteries
- Current consumption – less than 13 mA
- Antenna – internal ferrite
- Controls – tuning knob with scale and volume potentiometer
- Outputs – built-in speaker and headphone jack
- Indication – power on LED
- Dimensions after assembly – 125 x 69 x 29 mm
- Contents of the package – printed circuit board, 6 transistors, LED, antenna coil with ferrite rod and holder, oscillator coil and intermediate frequency transformers, drive transformer, speaker, resistors, ceramic and electrolytic capacitors, tuning capacitor, potentiometer, headphone jack, front and back cover, scale with speaker window, tuning and volume knobs, battery contacts, connecting wires, screws, circuit diagram, and assembly instructions (without batteries)
When building, it is recommended to solder the lower components first and then the higher ones, pay attention to the correct polarity of the transistors, diodes, and electrolytic capacitors, and check the connections before inserting the batteries. You will need a soldering iron, solder, and basic tools, which are not included in the package. After soldering, the radio will be activated and tuned according to the included diagram, which also indicates the test points for the currents of the individual stages.
The S66E kit offers a meaningful and fun way to understand how a radio receiver works. Step by step, you will learn to recognise components, work with the diagram, and solder carefully, resulting in a functional radio for receiving on medium wave. The compact box with dimensions 125 x 69 x 29 mm fits comfortably in your hand and on your workbench once completed. The kit makes a suitable gift for budding electronics enthusiasts, students, and experienced DIYers who appreciate classic analogue technology. For teachers and club leaders, it represents a practical tool for teaching soldering and radio technology.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
SpainReturns centre in Spain operated by Qxbox, an e-commerce logistics provider and logistics partner of the sellers on our platform.
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About the seller
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Seller:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
Manufacturer:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
EU responsible person:
BioDomi GmbH
Address: Schokoladenring 13, 65795 Hattersheim am Main, Germany
E-mail: arcontact@biodomieurope.de
Telephone: +49 178 5749814
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