You can find a lot of instructions about homemade flyback secondary coils. You can connect two or three coils in series to give higher voltage. Use epoxy instead of parrafin wax! Paraffin melts easily. (It can be extended during operation to 20mm) If you want to pump more watts into the flyback, a homemade thin secondary is recommended, because high secondary voltage can easily destroy the original coil. My flyback works with a 20W power supply and gives 8-9 mm sparks. The coil is impregnated with paraffin wax. It avoids internal arc between the windings. Cheap Walkie Talkie, Buy Quality Cellphones & Telecommunications Directly from China Suppliers:Leixen UV 25D 20W High Power Walkie Talkie Dual PTT Dual Band Amateur Radio with Scrambler CTCSS/DCS Repeater Function Ham Radio Enjoy Free Shipping Worldwide Limited Time Sale Easy Return. The coil thickness is 1 mm with 0.1 mm (38 awg) magnet wire. It contains more turns than the original coil, and gives higher voltage. The secondary coil you see in the picture above is a homemade, thin, disc shaped secondary coil. SKU: 4001178833114 Categories: Handheld Radio, Two-Way Radio Tags: Dual Band Radio, Handheld Radio, LEIXEN. When you assemble the flyback, don’t forget to place those thin plastic plates between the ferrite cores. Leixen UV-25D 20W High Power Walkie Talkie Dual PTT Dual Band Amateur Radio with Scrambler Repeater quantity. Then place back the secondary and the new primary and feedback. All New BlackBox VHF Mobile Voice Scramble Radios are High Performance and very simple to use, with voice compander enhancement and a output for an external.
Make a small paper cylinder from hard paper and glue the primary and the secondary coil on it.
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