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Assemblies of amateur radio equipment. Miscellaneous

Assemblies of amateur radio equipment. Miscellaneous. Articles with illustrations and detailed explanations:
A wideband transformer with a 3/2 transformer ratio
Active high-frequency switch
An intermediate frequency Amplifier based on a series-balanced transistor structure
Antenna switch
Automated search for correspondents
Designing a walk-through encoder
Digital circuits in sports equipment
Electronic dongle touchpad
Electronic switching using diodes
Features of designing VHF equipment
Features of national broadband transformers
Frequency doubler that does not require adjustment
Frequency-modulated detector on three elements 2 (NOT-AND)
High Frequency Chokes
High-frequency SPEECH processor
How to determine the resonant frequency of a quartz resonator using radio measuring devices in amateur conditions
Increasing the frequency of quartz
Instead of a toggle switch - a relay, instead of a variable capacitor - a resistor
Method of manufacturing chokes for the output stage of the transmitter with parallel power supply
Modem for a package
Multicombi. Combined Multivibrator Series
MULTIVOX scheme for a transceiver
Negative Feedback Amplifier
Permanent storage in sports equipment
Protection of microwave transistors
Reversible path in the transceiver
Scanner
Scheme for remote setting of the transceiver frequency
Simple panoramic indicator
Stable high frequency Amplifier
Transceiver input circuit
Transformer Manufacturing
Two schemes for connecting a transceiver to a computer sound card
Universal Frequency Modem
Use of spiral resonators in amateur VHF equipment
Using PIN-diodes as attenuation and switching elements
Valkoder from a mouse
Varaktorny triple on 430 MHz
VHF Contour Designs
All articles of the section Assemblies of amateur radio equipment:
Assemblies of amateur radio equipment. Crystal filters
Assemblies of amateur radio equipment. Filters and matching devices
Assemblies of amateur radio equipment. Miscellaneous
Assemblies of amateur radio equipment. Modulators
Assemblies of amateur radio equipment. Oscillators, heterodynes
Assemblies of amateur radio equipment. Signal limiters, compressors
Assemblies of amateur radio equipment. Mixers, frequency converters