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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
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The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


An improved crystal calibrator consists of two ICs, a 100 kHz crystal and a few other componants. It produces calibration marker points at 10 kHz intervals throughout the high-frequency spectrum.
CQ. THE RADIO AMATEUR'S JOURNAL Nov 1980 (v.36#11) pg. 42

Simple calibration standards circuits. (1) Precision 2.500 volt standard. (2) 1-MHz frequency standard.
CQ. THE RADIO AMATEUR'S JOURNAL Nov 1993 (v.49#11) pg. 90

Build a 455 kHz tunable BFO (beat-frequency oscillator) for receivers that use Collins-Rockwell mechanical filters.
CQ. THE RADIO AMATEUR'S JOURNAL Jan 1997 (v.53#1) pg. 74

Pilot carrier frequency standard. This project turn almost any FM monaural radio into an accurate signal source for experimenting or calibrating.

A modulated crystal calibrator.
ELECTRONICS ILLUSTRATED Sep 1963 (v.6#5) pg. 75

CB walkie-talkie tester. A modulated crystal-controlled RF generator to align walkie-talkie receivers. Produces an audio signal to test modulator and a sensitive remote-indicating FSM (field strength meter).
ELECTRONICS ILLUSTRATED May 1966 (v.9#3) pg. 43

Crystal-controlled signal generator used for CB receiver alignment. Produces modulated or unmodulated IF signals of 455 kc or any frequency from 1300 to 2000 kc. Also supplies an RF signal (26.96 to 27.25).
ELECTRONICS ILLUSTRATED Nov 1966 (v.9#6) pg. 65

Crystal calibrator produces 1 megacylce pips, modulation tones, and a hefty output signal. Useful up to 6 meters. Unit is small in size and battery-powered.
ELECTRONICS ILLUSTRATED Nov 1967 (v.10#6) pg. 57

Dual-frequency standard produces signal markers every 100 kc or 1 mc. The markers are audio modulated at 600 cps.
ELECTRONICS ILLUSTRATED Sep 1971 (v.14#5) pg. 61

Crystal oscillators. Learn the fundamentals of crystal resonators. How and why they work in oscillators and frequency standards. Part 1. Resonators based on the piezoelectric effect.
ELECTRONICS NOW Jan 1993 (v.64#1) pg. 45

Crystal oscillators. Part 2. Fundamentals of all transistorized oscillator circuits.
ELECTRONICS NOW Feb 1993 (v.64#2) pg. 47
Correction ELECTRONICS NOW Apr 1993 (v.64#4) pg. 93

Dual-range IC frequency standard. Design, calibration and operation of a solid-state version of a crystal oscillator with frequency divider.
ELECTRONICS WORLD Feb 1970 (v.83#2) pg. 76

Solid-state crystal calibrator provides frequencies of 10, 20, 25, 50, 100 and 1000 KC with harmonics extending well beyond 34 mc. Est. cost: $25.
ELEMENTARY ELECTRONICS May-Jun 1966 (v.2#2) pg. 71

Low-cost, integrated circuit, crystal-controlled frequency calibrator. Produces easily identified marker pulses at 25, 50 and 100 kHz. Est. cost: $23.
ELEMENTARY ELECTRONICS Nov-Dec 1969 (v.9#2) pg. 33

Pilot carrier frequency standard. This project turns an FM monaural radio into an accurate signal source for experimenting or calibrating. Uses the FM 19 kHz pilot carrier signal to generate squarewaves of 1 kHz, 100 Hz, 10 Hz, and 1 Hz.
HANDS-ON ELECTRONICS May 1987 (v.4#5) pg. 80

Rubber Crystal Oscillator combines the best features of a stable crystal oscillator and a tunable Colpitts.
HANDS-ON ELECTRONICS Sep 1988 (v.5#9) pg. 44

A 100KHz crystal calibrator uses a field-effect transistor.
POPULAR ELECTRONICS [1] Mar 1968 (v.28#3) pg. 56

Advanced ham crystal-controlled frequency calibrator works with vacuum-tube receivers to make certain their operating frequencies fall within 25 KHz of the correct frequency.
POPULAR ELECTRONICS [1] Jan 1969 (v.30#1) pg. 57

Switch-selectable, crystal-controlled frequency calibrator puts tone modulated marker pips at 1000, 500, 200, 100, 50, 20 or 10 KHz clear out to 30 MHz. Enables you to locate a specific shortwave frequency on a receiver.
POPULAR ELECTRONICS [1] Aug 1969 (v.31#2) pg. 27

Frequency calibrator for oscilloscope or shortwave receiver uses a silicon-contolled switch to simplify the circuit.
POPULAR ELECTRONICS [1] Dec 1969 (v.31#6) pg. 53

Frequency standard delivers markers at both 50 and 500 KHz intervals for use in shortwave receiver calibration.
POPULAR ELECTRONICS [1] May 1970 (v.32#5) pg. 63

Build a gated 100 KHz calibrator. Est.cost: 25.
POPULAR ELECTRONICS [1] Sep 1970 (v.33#3) pg. 53

Dual-mode crystal calibration oscillator for the ham and SWL provides accurate frequency checks 25 and 100 KHz apart. Est. cost: $8.
POPULAR ELECTRONICS [1] Aug 1971 (v.35#2) pg. 59

Deluxe frequency standard. One crystal and four economy-priced TTL integrated circuits produce seven crystal-controlled calibration frequencies. They are AM or CW signals at 1, 5, 10, 50, 100 and 500 KHz and at 1 MHz intervals to well above 50 MHz.
POPULAR ELECTRONICS [1] Jan 1974 (v.5#1) pg. 80

How frequency synthesizers work. A myriad of highly accurate frequencies can be generated from a single crystal.
POPULAR ELECTRONICS [1] Mar 1975 (v.7#3) pg. 43

Build the super marker. Inexpensive marker generator with selectable 100, 50, 20, or 10 kHz output allows precise tuning of shortwave receivers. Est. cost: $15.
POPULAR ELECTRONICS [1] Mar 1979 (v.15#3) pg. 74

Low-cost crystal oven will keep a crystal-controlled frequency source much more stable.
POPULAR ELECTRONICS [1] Nov 1980 (v.18#5) pg. 114

Useful RF (radio frequency) circuits. (1) RF-Sniffer can be used to hunt for RF-noise or indicate that a transmitter is operating. (2) RF-detector probe allows a DC voltmeter to indicate the presence of powerful radio waves. (3) Sensitive RF-detector probe allows a meter to detect small RF signals. (4) Wideband RF instrument amplifier. (5) Tuned or untuned RF wavemeter will provide an indication of the output level of a transmitter signal as radiated from an antenna or dummy load. (6) 100 kHz crystal calibrator RF source to calibrate receivers, sweep generators, signal generators, or other RF sources.
POPULAR ELECTRONICS [2] Jul 1991 (v.8#7) pg. 55

An easy-to-build crystal oscillator that is a must for your workbench. Works with fundamental crystals from 100 kHz to 17 MHz. Has a rich harmonic output for a one-transistor circuit.
RADIO-ELECTRONICS Jul 1978 (v.49#7) pg. 66

A look at the Loran-C navigation system, what it is, and how it works. How to use Loran-C signals as frequency standards for calibrating oscillators.
RADIO-ELECTRONICS Jul 1983 (v.54#7) pg. 63

How to calibrate your own frequency standards using WWV as a source of highly accurate time- and frequency-signals.
RADIO-ELECTRONICS Sep 1983 (v.54#9) pg. 62

Build this television-derived frequency standard which lets you use almost any TV as an accurate frequency reference. Est. cost: $65.
RADIO-ELECTRONICS Apr 1988 (v.59#4) pg. 55, 69
Added Info RADIO-ELECTRONICS Jul 1988 (v.59#7) pg. 15
Added Info RADIO-ELECTRONICS Oct 1988 (v.59#10) pg. 16
Added Info RADIO-ELECTRONICS Apr 1989 (v.60#4) pg. 14

Economical 10-MHz frequency standard to calibrate your test equipment, such as a frequency counter. Relies on picking up the NBS frequency standard broadcast on radio station WWV.
RADIO-ELECTRONICS Feb 1989 (v.60#2) pg. 63, 109

Down-counter cookbook. Using presettable down-counters to design frequency dividers, frequency synthesizers and alpha-numeric displays.
RADIO-ELECTRONICS Feb 1989 (v.60#2) pg. 71

Programmable crystal-controlled pulse generator (calibrated frequency source) incorporates a programmable crystal oscillator IC.
RADIO-ELECTRONICS Jun 1990 (v.61#6) pg. 47, 69

Using the perf-board construction technique to build a frequency standard, a 100 kc calibrator compact enough to mount in receiver chassis. Est. cost: $11.
RADIO-TV EXPERIMENTER #772 Feb-Mar 1966 (v.20#1) pg. 85