high voltage transformer

Ionic Fluid Antenna - Ionic Liquid Antenna (ILA) by MW0GKX from original articles by N9ZRT

3 Elements 40m full size U Antenna - 40 m three elements U antenna at 25m hight.

Magnetic Long Wire UnUn 9:1 - An impedance transformer (9:1) to feed a high impedance long wire (~450 ohm), down to a 50 ohm unbalanced coaxial input.

Broadband Baluns - Voltage baluns and choke (or current) baluns.

1:4 Current Balun - This project is intended to aid in tuning a balanced antenna or feedline that has a high impedance 100-600 ohms by N5ESE

75 ohm to 50 ohm Transformers - Transmission Line 75 ohm to 50 ohm Transformers

Dish antenna - Dish antenna and its theory and design for high performance applications such as satellite transmission and reception as well as microwave links.

Parabolic Reflector or Dish Antenna - The essentials of the parabolic reflector or dish antenna and its theory and design for high performance applications such as satellite transmission and reception as well as microwave links.

Dual Band Flower Pot antenna - Experimental Dual Band High Gain Flower Pot Antenna

Ladder Feeder Dual Band Antenna - 450Ω Ladder Feeder Dual Band Antenna

TubeRadioDoc Priority listing - Vintage Tube Radio's from Germany for sale. High class restorations for all valve radios offered. Radio Brands like Saba, NordMende, Majestic, Grundig, Zenith, Philco and more. TubeRadioDoc Vintage Audio Store

VK3BI Central Goldfields Amateur Radio - CGARC is recognised as a high achiever for its Foundation Licence training courses and assessment sessions making it a leader in this field when compared with like clubs around Australi

Appalachian Contesters Priority listing - Appalalachian Contesters - W4APP THE High Country's amateur radio contesting club

Dishtronix - High power, solid state RF amplifiers and accessories, amateur radio power meters and Prometheus RF power amplifier manufacturer

Electronic Products Design - Electronic Products Design Inc based in North Carolina, offers you custom design of transformers, coils, and telemetry control systems.

California Tube Laboratory - CTL designs and manufactures a wide range of high-power pulse and CW magnetrons, and provides cost-effective magnetron rebuild services for commercial, industrial and defense users.

Introduction to Digital Modes - Wireless Society of Southern Maine, Digital Modes Page, introduction to amateur radio digital modes, including FLDIGI, PSK31, RTTY, high speed CW, Slow Scan Television, HF Weather Fax, WeFAX, MFSK16, OLIVIA, G-TOR, AMTOR, MT63, Digital SSTV, Frequency Key Shifting, and more

High SWR after AL-811 10 Meter mod - Very High SWR with the 10M Mod to Ameritron AL-811 amplifier

Ham4Less - supply a full line of the highest quality amateur radio equipment availalble. Antennas, coax cables and switches, baluns, power poles

Tubeworld - Source for high quality new old stock vacuum tubes

APRSISCE/32 - APRSISCE/32 is an Automatic Packet Reporting System (APRS) program, primarily intended for Windows and Windows Mobile (CE), although it will run on Linux and Mac OS under wine. Offer enhanced messaging, announcement support via ANSRVR, and QRU for object query support, can run as a highly configurable Digipeater

A Precision Voltage Reference - A project by Don Wilhelm W3FPR

Fitting a BNC or TNC connector - Take care to purchase the correct type of BNC plug for your application as there are different models for 50Ω and 75Ω

Fuses - About Fusues, current and voltage rating, type of fuses

A high perfomance Crowbar Circuit - The MC3423 can protect sensitive circuity from power supply transients or regulator failure when used with an external "Crowbar" SCR.