Solderless Crystal Radio Kit 4

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)


SKU: CRK-4 Category: Tag:


Crystal Radio Kit 4 includes everything needed to build a fully functional crystal radio, including an antenna and ground wire. The kit is easy to assemble with no soldering required.
This kit is a great way to get started in electronics and radio building. Crystal Radio Kit 4 is a fun and simple project for both beginners and expert builders alike. Crystal Radio Kit 4 is a great project to build with your child or grandchild, boy scout groups and schools.

Parts Included In Crystal Radio Kit 4:
1 – Circuit Board (3 3/8″ X 5 1/8″)
1 – Variable Capacitor Pre-soldered To Circuit Board
1 – Ferrite Loopstick Antenna
2 – Solder Lugs Pre-soldered To Ferrite Loopstick Antenna
1 – 1N34A Germanium Diode
1 – .001uf Capacitor
1 – 47K Resistor
1 – Ceramic Earphone
4 – Fahnestock Clips
1 – Knob with shaft and screw
2 – Coil Clamps
6 – 3/8″ #6 Screws
2- 1/2″ #6 Screws
4 – 3/4″ #6 Screws
20 – #6 Nuts
8 – #6 Washers
4 – Rubber Feet
1 – ~20 feet antenna wire (color may vary)
1 – ~ 5 feet ground wire (color may vary)

Tools Required:
Philips Screwdriver
Small (Jewelers) Screwdriver
5/16″ Wrench

Audio Amplifier Kit 1 (sold separately) was designed to match Crystal Radio Kit 4 and makes a great add on kit.
Audio Amplifier Kit 1

Here is a photo of Crystal Radio Kit 4 and Audio Amplifier Kit 1 (sold separately) wired together:
Audio Kit 1 with Crystal Radio Kit 4

The kit contains small parts that may be a choking hazard. Adult supervision is always advised while building the radio kit.

1 review for Solderless Crystal Radio Kit 4

  1. Rated 5 out of 5

    (verified owner)

    I am overwhelmed with the quality of parts, the detailed instructions including photographs, the easy to read packaging, the simple assembly. And guess what? The radio works!
    My grandkids are so impressed. These kits are great for school science projects and Christmas gifts.
    Thanks for spending the time to make these available.
    I recommend the associated audio amplifer, makes the sound easier to hear.

Add a review

Your email address will not be published. Required fields are marked *

Have a question or something to discuss?

Wallace Atwood
January 3, 2019

I just assembled your Kit1 crystal radio in Gloucester Ma.. I was able to pick up a Boston radio station WBZ 1030 am, but the voices were barely audible. The variable capacitor was at maximum pf, full clock wise. Only one station. We have 12 kids building this kit; so it would be good to have decent audio. Any suggestions? What are your normal expectations for this kit? We are about 30 miles from Boston.
Wally Atwood for Floyd Grace

Mike Lowe
January 6, 2019

It should perform better than you describe. Based on where 1030 is tuning I have some ideas and questions. I will e-mail you separately to discuss.