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Article #912Re: Transformers in Audio Power Supplies
From: David Barrera
Date: Wed, 05 Oct 1994 15:15
Date: Wed, 05 Oct 1994 15:15
27 lines
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1836 bytes
In article <niall-0510941103460001@47.34.3.64>, niall@bnr.ca (Niall Gallagher) writes: > In article <36ue41$880@bcarh8ab.bnr.ca>, stud7b11@bcars564.bnrottawa wrote: > > > > In an amplifier circuit that I am currently fiddling > > with, the spec. says to use a toroidal transformer in the > > power supply. Why is this important? How would I be > > degrading the performance of the amp with a plain-vanilla > > transformer? > > Less flux leakage, most likely. The leakage could cause 60Hz noise to be > induced in the amplifier. Electronically, there is little difference. > > Niall > > -- > Niall Gallagher > niall@bnr.ca Try this! Take same turn toroidal transformer and the plain-vanilla one and measure the impediance. If your multimeter doesn't have that function then try getting a ruff estimate by setting the meter on the ohms measurement and get the greatest peak. Did that make any sense? Tell us your results, Dave
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fb1f8,880e8a12a40f496f X-Google-Attributes: gidfb1f8,public X-Google-Thread: 10b600,880e8a12a40f496f X-Google-Attributes: gid10b600,public X-Google-Thread: 105d97,880e8a12a40f496f X-Google-Attributes: gid105d97,public X-Google-ArrivalTime: 1994-10-05 13:54:17 PST Path: arc1-ca.pugleaf.net!bga.com!news.sprintlink.net!howland.reston.ans.net!torn!nott!bcarh189.bnr.ca!corpgate!crchh327.bnr.ca!barrera From: barrera@bnr.ca (David Barrera) Newsgroups: rec.audio.tech,bnr.general,sci.electronics Subject: Re: Transformers in Audio Power Supplies Date: 5 Oct 1994 10:15:36 -0500 Organization: Bell-Northern Research, Richardson, TX Lines: 27 Distribution: world Message-ID: <36ufuo$j5a@crchh7e6.bnr.ca> References: <36ue41$880@bcarh8ab.bnr.ca> <niall-0510941103460001@47.34.3.64> NNTP-Posting-Host: crchh7e6.bnr.ca