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Results by Category: 29.1 — transmitters and power amplifiers - general

Article Author Page Issue Available to Buy?
Linear power amplifiersBelt16Apr 68 
TV sweep tubes in linear service, full-blast operation ofW6SAI, W6UOV9Apr 68 
Transmitter switching, solid-stateW2EEY44Jun 68 
Grid-current measurement in grounded-grid amplifiersW6SAI64Aug 68 
Frequency translation in ssb transmittersBelt22Sep 68 
Converting a-m power amplifiers to ssb serviceWA4GNW55Sep 68 
Screen clamp, solid-stateW0LRW44Sep 68 
Pi and pi-L networksW6SAI36Nov 68 
Transmitter, remote keying (HN)WA3HDU74Oct 69 
Rf power transistors, how to useWA7KRE8Jan 70 
Amplitude modulation, a different approachWA5SNZ50Feb 70 
Swr alarm circuitsW2EEY73Apr 70 
Power attenuator, all-band 10-dBK1CCL68Apr 70 
Parasitic suppressor (HN)WA9JMY80Apr 70 
Temperature alarms for high-power amplifiersW2EEY48Jul 70 
Parasitic oscillations in high-power transistor rf amplifiersW0KGI54Sep 70 
Intermittent voice operation of power tubesW6SAI24Jan 71 
Blower-to-chassis adapter (HN)K6JYO73Feb 71 
Blower maintenance (HN)W6NIF71Feb 71 
Power fetsW3FQJ34Apr 71 
Transmitter power levels, some observations regardingWA5SNZ62Apr 71 
Transmitter-tuning unit for the blindW9NTP60Jun 71 
Frequency multipliersW6GXN6Aug 71 
Multiple tubes in parallel grounding grid (HN)W7CSD60Aug 71 
Relay activator (HN)K6KA62Sep 71 
Step-start circuit, high-voltage (HN)W6VFR64Sep 71 
Pi networks, series tunedW2EGH42Oct 71 
Pre-emphasis for ssb transmittersOH2CD38Feb 72 
Key and vox clicks (HN)K6KA74Aug 72 
Vacuum tubes, using odd-ball types in linear amplifiersW5JJ58Sep 72 
Pi-network design, high-frequency power amplifierW6FFC6Sep 72 
Pi-network inductors (letter)W7IV78Dec 72 
Neutralizing tip (HN)ZE6JP69Dec 72 
Networks, transmitter matchingW6FFC6Jan 73 
Vfo, digital readoutWB8IFM14Jan 73 
Efficiency of linear power amplifiers, how to compareW5JJ64Jul 73Issue Available
Batteries, how to select for portable equipmentWA0AIK40Aug 73 
Filters, ssb (HN)K6KA63Nov 73Issue Available
Lowpass filters for solid-state linear amplifiersWA0JYK38Mar 74Issue Available
Pi network design aidW6NIF62May 74Issue Available
Fail-safe timer, transmitter (HN)K9HVW72Oct 74Issue Available
Rf power amplifiers, high-efficiencyWB8LQK8Oct 74Issue Available
Lowpass filters for solid-state linear amplifiersShort circuit62Dec 74 
Pi network design aidCorrection (letter)58Dec 74 
Electronic bias switching for linear amplifiersW6VFR50Mar 75Issue Available
Power tube open filament pins (HN)W9KNI69Apr 75Issue Available
Sstv reporting systemWB6ZYE78Sep 76Issue Available
Matching techniques, broadband, for transistor rf amplifiersWA7WHZ30Jan 77 
National NCX-500 modification for 15 meters (HN)WA1KYO87Oct 77Issue Available
Filter converter, an up/downW5DA20Dec 77Issue Available
High-voltage fuses in linear amplifiers (HN)K9MM76Feb 78Issue Available
Pi network designAnderson, Leonard H.36Mar 78Issue Available
Rf leakage from your transmitter, preventingK9MM44Jun 78Issue Available
Pi-network rf choke (HN)W6KNE98Jun 78Issue Available
Pi networks (letter)W6NIF6Oct 78Issue Available
Digital vfo basicsEarnshaw18Nov 78Issue Available
Digital readout, universalWB8IFM34Dec 78Issue Available
Pi network designComments6Apr 79Issue Available
Linear power amplifiers (letter)KB5EY, W6SAI6Dec 79Issue Available
Quartz crystals (letter)WB2EGV12Dec 79Issue Available
Talking clock (letter)N9KV75Feb 80 
Talking digital readout (letter)N5AF6May 80Issue Available
Eimac 5CX1500A power pentode, notes onK9XI60Aug 80Issue Available
XK2C AFSK generator, theW3HVK58Nov 80Issue Available
CQer, automatic, for RTTYW4AYV18Nov 80Issue Available
Lowpass filters, elliptic, for transistor amplifiersW3NQN20Jan 81Issue Available
Single-conversion transceivers, digital frequency display forK6YHK28Mar 81Issue Available
A-M/fm converter for facsimile transmission, anSM6FJB12Dec 81Issue Available
40-meter transmitter-receiverW6XM43Dec 82Issue Available
5CX1500 screen protection (HN)VE3AIA58Mar 83 
6-meter amplifierW2GN72Apr 83 
6-meter amplifierShort circuit97Aug 83Issue Available
VMOS on 1750 metersK1RGO71Oct 83Issue Available
RF switching, high power with pin diodesKN8Z82Jan 85 
MC1496, improved carrier suppression (HN)K1ZJH78Apr 85Issue Available
MC1496, improved carrier suppression (HN)Short circuit74Jul 85Issue Available
Adjusting SSB amplifiersAG6K33Sep 85 
Grounded-grid amplifier parasiticsAG6K31Apr 86Issue Available
Grounded-grid amplifier parasiticsComment, W2YW6Jul 86Issue Available
Grounded-grid amplifier parasiticsComment, NJ0G9Jul 86Issue Available
Ham radio techniques: super cathode driven amplifierW6SAI73Nov 86Issue Available
Aural vco provides relative meteringK1ZJH97Jan 87Issue Available
True frequency digital readout for the HW-101NU4F8Jan 87Issue Available
Ham radio techniques: "white noise" technology bites backW6SAI55Jan 87Issue Available
MMIC multiplier chains for the 902 MHz bandN6JH72Feb 87 
Three-tube 4CX250B linear amplifierYU1AW63Apr 87Issue Available
MMIC multiplier chains for the 902 MHz bandShort circuit64May 87Issue Available
True frequency digital readout for the HW-101Short circuit41Aug 87 
Design a no-tune amplifier with your personal computerW7DHD8Sep 87Issue Available
Ham radio techniques: "white noise" revisitedW6SAI79Oct 87 
Practically speaking: noise, signals and amplifiersK4IPV77Feb 88 
Two-Loop 10-Hz Step 40-70 MHz SynthesizerPY1LL & C Mathias24Jan 89 
Collector Matching NetworksKZJ34Jan 89 
Practically Speaking: Parts for Antenna Tuners and Linears Plus a CorrectionK4IPV83Jan 89 
QSK Modification for the Trio-Kenwood TL-922 AmplifierAG6K35Mar 89 
Homebrew Neutralizing CapacitorN4LC38May 89Issue Available
Linear Tuning with a War Surplus CapacitorN2DCH40Jun 89Issue Available

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