kpg 22 schematic

K-FACTOR Table & Chart - Determine the K-Factor used as a multiplier when constructing half-wave antennas.

IK1HGI Beacon - Beacon from qrss on 28.322,08 Mhz

VK8NSB's IOTA page - Melville Island OC-173, Croker Island OC-229, IOTA DXpedition 1999

JL3CRS Official Blog
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NVRA, Nederlandse Vereniging voor Radio Amateurs. - Nederlandse Vereniging voor Radio Amateurs / Dutch Society for Radio Amateurs Located in Haarlem , Netherlands JO22HJ. Calls PI4HLM en ATV repeater PI6HLM

SB-220 SB-221 Heathkit Amplifiers - SB-220 or SB-221 Heathkit Amp Using Eimac's 3-500Z - K0GKD

Improving Heathkit SB-220 - Circuit Improvements for the Heath SB-220 Amplifier

Circuit Improvements for the TL-922 - by Richard L. Measures, AG6K

QSK for the TL-922 and SB-220 mods - Beautifully constructed amplifiers. Unfortunately, are not suited for high speed T-R switching, a necessary attribute for operating AMTOR, QSK-CW, or SSB-VOX modes.

Icom IC-746 mods - Schematics, modifications and manuals for ICOM IC-746

Yaesu FT 857 mods and manuals  ^pop - Yaesu FT-857 modifications, schematics and manuals

Yaesu FT-857D modifications and manuals  ^pop - Modifications schematics and manuals for the Yaesu FT-857D

Yaesu FT 897 mods  ^pop - Modifications, schematics, programming interfaces and manuals for the Yaesu FT-897

Yaesu FT-897d mods - Programming interface schematics for Yaesu FT-897D programming interface, Yaesu 4 pin plug PDF User Manual for Yaesu FT-897D (FT 897 D FT897D)

RevLoad - This graphics-intensive program reveals the load on the output of a matching-network, based on measurements of the components in that network. Adjust the network (tuner) for a flat input, measure or look up the network component values and you will immmediately see the R and jX values of the load on the network, presented as both a schematic with the component values and as a Smith Chart normalized to the specified system impedance.

SB220 SB221 arcing problems improvements mods - This article explores the claim an amplifier might arc from a parasitic oscillation, damaging capacitors, bandswitches, or other components.

Homebrew 813 Linear Amplifier - 813 Linear Amplifier Project includes many schematics, drawind and assembling construction

G3YXM 500 W solid state amplifier - HF 500 Watt power amplifier schematics by G3YXM

IK5MEN HF amplifier 10-160m. - Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.

6 meters power amplifier - A PDF file containing schematics and instructions to hombrew a power amplifier for 50 Mhz

GI-7 on 2m - Schematic & drawing for a GI-7b 2m linear amplifier

YU1AW-2m-easy build QRO - Schematics and drawings

PICBeacon - CW/QRSS beacon, based on a microcontroller PIC16F84, by Microchip, with only few other components. Schematic and component list available

144/430 Duplexer - Schematics for a VHF UHF duplexer

Microphone connections by G4WPW - Roy G4WPW has collected one of the most complete and interesting pages for microphone connections schemas and wiring. Includes Kenwood microphones schematics as well as Yaesu Icom Alinco Adonis Drake Heil JRC MFJ schematics