From: "Bill Johnson"
Subject: Re: help interpreting toroid schematic
Date: Tue, 10 Sep 2002 18:26:40 -0400
Organization: MindSpring Enterprises
X-Server-Date: 10 Sep 2002 22:27:42 GMT
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Thanks for the quick response. Perhaps I posted this a bit too soon and
maybe should have contacted the designer of the circuit first, which I have
now done. Thanks for your input and sorry for the inconvenience.
> Hi Bill,
> Quadfilar means that four (4) wires are wound together, in parallel.
> Your drawing needs color for each winding to clearly answer your
> question, also, it needs phase dots on the schematic to correlate
> correct connections. 1 & 3 appear to be backwards, as do 5 & 7; but
> without the individual windings visible, or phase information, it is
> difficult to say.
> What you have in your mind, and what you have posted may well work,
> but without these details, I for one, could not respond in the
> affirmative. Reasons for my saying 1 & 3 appear to be backwards is
> due to all windings starting at the same end (presumably 1,4,5,8)
> would not find 1 & 3 in proximity with 2 & 4 connected unless there is
> a phase inversion not shown. [Same goes for 5,7 and 6,8.]
> Richard Clark, KB7QHC