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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

A ladder circuit produces a series of reference voltages separated by 3dB increments. Useful as part of a digital VU or power level meter using LED's for display.
AUDIO AMATEUR 4/1979 [Oct 1979] (v.10#4) pg. 40

Test report on the Heath Graphic Output Indicator signal meter (Model AD-1701) kit.
AUDIO AMATEUR 4/1980 [Nov 1980] (v.11#4) pg. 58

Signal level monitor is a simple, low-cost, two-LED device. Use it to monitor recording levels at multiple places along the mixing chain.
AUDIO AMATEUR 4/1981 [Sep 1981] (v.12#4) pg. 40

A peak program meter for the ReVox A-77 open-reel tape recorder to replace the VU meter.
AUDIO AMATEUR 1/1984 [Mar 1984] (v.15#1) pg. 19

VU meter circuit for the Hafler DH-200 and DH-220 power amplifier connects directly to the speaker terminals. Can be adapted for other amplifiers.
AUDIO AMATEUR 2/1986 [May 1986] (v.17#2) pg. 38

Review of the Advantage Model 310 audio signal and noise level meter.
AUDIO AMATEUR 3/1994 [Sep 1994] (v.25#3) pg. 38

Explanation of what constitutes a true ANSI standard VU meter.
AUDIO ELECTRONICS 3/2000 [May 2000] (v.31#3) pg. 54
Added Info AUDIO ELECTRONICS 5/2000 [Sep 2000] (v.31#5) pg. 43

Plug-in recording level meter for budget recorders. Est. cost: $3.
ELECTRONICS ILLUSTRATED Nov 1965 (v.8#6) pg. 86

The amazing rubber rules. How to read VU meters and what the readings really tell you.
ELECTRONICS ILLUSTRATED Mar 1967 (v.10#2) pg. 128

DisPlayer. Displays a visual indication of what note is being played by a musical instrument. Also includes a VU meter that acts as a volume display. Est. cost: $89 (kit).
ELECTRONICS NOW Sep 1998 (v.69#9) pg. 51

VU recording meter features lamp-readout showing -6, -3, 0, +3 and +6 dB. Replaces a conventional meter with a bouncing needle.
POPULAR ELECTRONICS [1] Jan 1974 (v.5#1) pg. 44

Build a tape recorder/amplifier FET VU (volume unit) meter to monitor recording signal level.
POPULAR ELECTRONICS [1] Jun 1974 (v.5#6) pg. 52

A VU meter with no moving parts. Bar-graph device provides signal-strength readouts, accurate peak signals.
POPULAR ELECTRONICS [1] Feb 1975 (v.7#2) pg. 40

An LED-readout audio power meter measures amplifier output, indicates speaker balance, compares speaker efficiencies, and doubles as a VU meter with easy-to-read display. Est. cost: $38.
POPULAR ELECTRONICS [1] Mar 1976 (v.9#3) pg. 35
Correction POPULAR ELECTRONICS [1] May 1976 (v.9#5) pg. 6
Correction POPULAR ELECTRONICS [1] Jun 1976 (v.9#6) pg. 6
Added Info AUDIO AMATEUR 2/1978 [Jun 1978] (v.9#2) pg. 53

An audio level meter. Useful in tape recording, checking broadcast modulation, balancing channels, monitoring power amplifiers, etc. Est. cost: $75.
POPULAR ELECTRONICS [1] Oct 1981 (v.19#10) pg. 87

A collection of display circuits (continued). (1) Monostable 555-timer circuit that alternately flashes a red and a green LED. (2) LED flasher uses a single 1.5-volt source. (3) Count-down switch will turn a 110-volt lamp off after a predetermined time. (4) 10-LED VU meter is adapted to measure the relative sound level in a room.
POPULAR ELECTRONICS [2] Feb 1994 (v.11#2) pg. 24

Visible stereo VU meter circuit lights up to 10 LEDs in relation to the output volume to the speaker.
POPULAR ELECTRONICS [2] Apr 1998 (v.15#4) pg. 54

LED peakmeter is the digital equivalent of a VU meter. Measures peak output of hi-fi equipment.
RADIO-ELECTRONICS Mar 1980 (v.51#3) pg. 64

Build this LED VU meter for your hi-fi. LED display replaces the conventional meter movement. Est. cost: $75.
RADIO-ELECTRONICS May 1981 (v.52#5) pg. 59

Circuit for an LED VU meter.
RADIO-ELECTRONICS May 1988 (v.59#5) pg. 12
Correction RADIO-ELECTRONICS Aug 1988 (v.59#8) pg. 10

Linear amplifier specifically designed to drive low-cost VU meter will allow full scale frequency response measurements down to -70dB.
RADIO-TV EXPERIMENTER Dec 1968-Jan 1969 (v.25#3) pg. 81

Combo-Amp, a combination microphone preamplifier, line amplifier, and volume level meter. Enables you to control tape recorder or P.A. volume level from the microphone position.
SCIENCE & ELECTRONICS [2] Mar-Apr 1981 (v.21#2) pg. 73

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