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Crystal radio schematics – Circuit Schematic
Crystal radio schematics
The fundamentals of crystals has not changed since this article appeared in a 1960 edition of Popular Electronics. The way they are grown, cut, and packaged has...
Crystal radio schematics – Circuit Schematic
Crystal radio schematics
The fundamentals of crystals has not changed since this article appeared in a 1960 edition of Popular Electronics. The way they are grown, cut, and packaged has...
Novice CW Transmitter – Circuit Schematic
Novice CW Transmitter
Even though this CW transmitter circuit was published in 1955 in Popular Electronics, it is still legal for today`s Amateur radio operator. Portions of the 40-m...
Novice CW Transmitter – Circuit Schematic
Novice CW Transmitter
Even though this CW transmitter circuit was published in 1955 in Popular Electronics, it is still legal for today`s Amateur radio operator. Portions of the 40-m...
All about FM radio Schematics – Circuit Schematic
All about FM radio Schematics
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All about FM radio Schematics – Circuit Schematic
All about FM radio Schematics
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VHF Engineering – Circuit Schematic
VHF Engineering
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VHF Engineering – Circuit Schematic
VHF Engineering
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Motorola Spectra Introductory Information – Circuit Schematic
Motorola Spectra Introductory Information
No matter WHAT the label on the radio (or the seller) says, no Spectra will ever operate over the entire 136-174MHz (high band) or 403-512MHz (UHF) frequency ra...
Motorola Spectra Introductory Information – Circuit Schematic
Motorola Spectra Introductory Information
No matter WHAT the label on the radio (or the seller) says, no Spectra will ever operate over the entire 136-174MHz (high band) or 403-512MHz (UHF) frequency ra...
Motorola MaxTrac Radius and GM300 Series Introductory Information – Circuit Schematic
Motorola MaxTrac Radius and GM300 Series Introductory Information
This page is oriented towards the USA marketed radios, simply because it was compiled by USA residents; we described the radios we are familiar with. If anyone ...
Motorola MaxTrac Radius and GM300 Series Introductory Information – Circuit Schematic
Motorola MaxTrac Radius and GM300 Series Introductory Information
This page is oriented towards the USA marketed radios, simply because it was compiled by USA residents; we described the radios we are familiar with. If anyone ...
Taming the GTX 900 MHz – Circuit Schematic
Taming the GTX 900 MHz
Many of us who use GTX 900 MHz radios to work amateur repeaters are well aware of the erratic output power problem. You go through the complete board replacemen...
Taming the GTX 900 MHz – Circuit Schematic
Taming the GTX 900 MHz
Many of us who use GTX 900 MHz radios to work amateur repeaters are well aware of the erratic output power problem. You go through the complete board replacemen...
Duplexing the UHF Micor – Circuit Schematic
Duplexing the UHF Micor
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Duplexing the UHF Micor – Circuit Schematic
Duplexing the UHF Micor
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Improving the MICOR Receiver for 435-450 MHz – Circuit Schematic
Improving the MICOR Receiver for 435-450 MHz
This is a detailed explanation of a procedure you can use to modify a UHF MICOR "M" range (450-470 MHz) receiver board so it operates adequately in the 435-450 ...
Improving the MICOR Receiver for 435-450 MHz – Circuit Schematic
Improving the MICOR Receiver for 435-450 MHz
This is a detailed explanation of a procedure you can use to modify a UHF MICOR "M" range (450-470 MHz) receiver board so it operates adequately in the 435-450 ...
GE/MACOM MASTR-III VHF Station – Circuit Schematic
GE/MACOM MASTR-III VHF Station
This article provides conversion instructions for radio model # GE/MACOM MASTR-III Group 2 (150. 8-174 MHz) Repeater or Base, Combination Number SXS, to allow i...
GE/MACOM MASTR-III VHF Station – Circuit Schematic
GE/MACOM MASTR-III VHF Station
This article provides conversion instructions for radio model # GE/MACOM MASTR-III Group 2 (150. 8-174 MHz) Repeater or Base, Combination Number SXS, to allow i...