diamond 220 discone

Discone Antenna Calculator - Calculate dimension for discone antennas online

Trap dipole for WARC bands - Diamond W8010 Multiband Dipole Modifications

Homemade Loaded Coil Dipole - Homemade Loaded Coil Dipole ( w8010 diamond ) for 10, 15, 20, 40 and 80 meter

Discone antenna - The basics of what is a discone antenna for wide band or bandwidth omnidirectional applications.

Discone antenna - About the basics of what is a discone antenna for wide band or bandwidth omnidirectional applications

New York City Area Repeater Directory - 144/220/440 repeater directory centered on New York City

Ameritron AL-811 Product Reviews - eHam reviews for the Ameritron AL-811 linear amplifier

SB-220 Mods - Heathkit SB-220 Amplifier modification by KE5YA

SB220 refurbish - Heathkit SB220 refurbishing by PA5CA

Adding 160 meters to the Heathkit SB-220 - There will be radical changes to this Heathlit SB-220. There will be the addition of 160 meters along with many other circuit and design changes.

SB-220 Repairs and Modifications - Heathkit SB 220 mods, replacing the Zener ZD1, replacing the plate-voltage voltage divider, adding a keying circuit for solid state transceivers

Heathkit SB-220 Meter Repair - Repairt a Heathkit SB-220 Linear Amplifier with a bad Plate Voltage meter

HAM IV Rotor restoration - HAM-IV antenna rotor repari and restore

137.7kHz QRSS on one chip - This article describes a simple QRSS beacon exciter for the DX portion of the 2200m amateur band.

137 kHz antenna preamplifier - A simple 137 kHz antenna preamplifier to make your FT-817 (and others) useable on 2200m band.

Homemade OPC-474 cable - Homemade programming cable works with IC-E90, IC-E208,IC-E2820, IC-2100, IC-2200, IC-2720 IC-2725 IC-2820 and more by MW0GKX

Icom OPC-1529R programming cable - Home build an OPC-1529R cable, works with IC-91, IC-2200, IC-V82, IC-U82, ID-E880 by MW0GKX.