Diamond-Weave 175/46 Litz Coil with Free Diode for Crystal Radio Sets For Sale -

Spider-web Coil Formless 15 pins –

Includes one free 1N34A crystal diode with the purchase of this coil! My coils are hand-wound by me, not mass produced on a machine.

My best selling coil! This is a Diamond-weave hand-wound coil for crystal radios using 175/46 Litz wire. The design is sometimes mistaken as a spider-web coil but since it has no former spokes, it is called a diamond-weave. Google for crystal radio schematics. See photos. Wooden stand shown for demonstration purposes only and is not included.

There are no forms, coil is held together with Q-Dopeand lightly sprayed withCrystal Clear acrylic to strengthen the coil. Lead length is approximately 6”, and is pre-tinned. This coil wound using a 15 pin Kipgen former, a 36% increase over the 11 pin former, meaning more crossovers for better inductance performance, less inner capacitance. A 2.5-inch nylon screw and3 nylon nuts are provided to mount the coil on your set.

Each coil measured for proper inductance using an AADE L/C Meter IIB precision meter. See photos.

Coil Dimensions:

Coil ID: 1.500-inches

Coil OD: 3.125-inches

Coil width: 0.3125-inches

Inductance: 224.6uH

I can make multiple copies of this coil, ask.

This coil is newand sold as-is. Coil will be well packed in its own container (see photo) and shipped free within the US via USPS Priority Mail. See my response. Email me for information.

I ship overseas via Priority Mail International. Please use shipping calculator below.

Need r.f. coil(s) wound in the vintage way for a specific inductance for your Crystal or TRF Set? I wind diamond weave (spiderweb), honeycomb, duolateral (Berndept), Rookand basketweavecoils using a variety of Kipgen former diameters to over 6 plus inches. I can build very large diamond-weave coils. Email for particulars. I use brand-new 175/46 litz wire, 660/46 litz wire, kynar insulated silver-plated wireor when available cloth-covered magnet wire. I use Kipgen formers exclusively to wind my coils. Sorry, no solenoid or former-enclosed type coils. Email me for a quote. Thanks for looking. John, WØHII crystalradiocoils