The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
Subject: Re: Audio Phase meter cct wanted
X-Newsreader: Microsoft Outlook Express 5.50.4807.1700
Date: Tue, 19 Nov 2002 08:00:53 +1300
NNTP-Posting-Date: Tue, 19 Nov 2002 08:00:59 NZDT
Thanks very much Jan for the information, yes the Elektor project sounds
just what I need.
I'll try and find a copy. Does anyone have one?
"J.Koning" wrote in message
> Jeff heeft geschreven in bericht ...
> >I need a simple circuit to measure relative phase of audio tones, but
> >accurately than using scope patterns. Perhaps some sort of audio squarer
> >with phase comparator and meter output. Has anyone seen such a circuit?
> Elektor magazine published a "LF-phase-meter" in the June/1993 edition.
> simple yet quite accurate design. Basically the phase meter uses two Cmos
> IC's, a 4069U and a 4013, and a handfull of discrete components. The
> gadgetry in the design around the basic phase-meter consists of a 7106 3½
> digit DVM IC plus LCD display and a power supply. However, the basic
> phase-meter runs from a single 5V supply and current consumption is low
> enough to feed it from a 9V battery. As such it could be used as a add-on
> module for a standard (digital) multimeter (200mV range), or as an add-on
> for any piece of recording equipment.
> Published spec's are:
> f-range : 50Hz - 30kHz
> U-in : 10mV- 5Vrms
> U-max. : 50Vrms
> Z-in : ~300Kohm@100mV, ~200Kohm@10V
> Readout : 0-180°, 0-360° switchable
> Error : < 2°
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup