Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
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Peak-reading level meter measures peak voltages and converts the readings to decibels. Connect any 10-volt meter to the output to form a direct-reading decibel meter. Supplements a VU meter.
AUDIO AMATEUR 1/1973 [Dec 1973] (v.4#1) pg. 7

An audio measuring system. Part 2. Paul Bunyan. Circuit for a logarithmic (decibel) amplifier that is completely self-contained and may be used with any sweep generator.
AUDIO AMATEUR 3/1981 [Jun 1981] (v.12#3) pg. 14
Added Info AUDIO AMATEUR 4/1981 [Sep 1981] (v.12#4) pg. 59
Added Info AUDIO AMATEUR 5/1983 [Jan 1984] (v.14#5) pg. 55

RMS AC voltmeter with dB converter.
AUDIO AMATEUR 2/1983 [Jun 1983] (v.14#2) pg. 12
Correction AUDIO AMATEUR 4/1983 [Nov 1983] (v.14#4) pg. 54

A three-digit digital decibel (dB) meter. Displays from -99.9 to +99.9 dB (10mV to 100kV).
AUDIO AMATEUR 4/1984 [Sep 1984] (v.15#4) pg. 28
Correction AUDIO AMATEUR 2/1985 [Mar 1985] (v.16#2) pg. 48

Build this decibel meter (dB meter) and measure field strength, read filter outputs, and check oscillator injection values. Est. cost: $50 (kit).
ELECTRONICS NOW Nov 1995 (v.66#11) pg. 112

Audio-level meters. An explanation of the decibel measurement system which uses a logarithmic scale. Includes circuits for both a stereo and mono audio-level meter that outputs voltage decibels.
RADIO-ELECTRONICS Jan 1991 (v.62#1) pg. 69

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