[Elecraft] Tayloe mixer, was H mode mixer

[Giancarlo Moda]

Hi,

I may have missed some messages

Message: 11
Date: Sat, 12 May 2007 03:04:02 +0200
From: Sverre Holm <svholm3 at broadpark.no>
Subject: Re: [Elecraft] Tayloe mixer, was H mode mixer
To: elecraft at mailman.qth.net
Message-ID: <0JHW00CWMLNGAG10 at osl1sminn1.broadpark.no>
Content-Type: text/plain; charset=us-ascii

WB6QRN wrote:
> And just to confuse things even more, what about the
Tayloe mixer?

I don't know about the H-mode mixer, but the Tayloe
mixer has been 
patented
by Motorola. 

"Product detector and method therefor" was filed in
1998 and granted in 
2001
as US patent 6,230,000. See
<http://www.google.com/patents?id=FsIGAAAAEBAJ&dq=US+6230000>


> The origin of the Tayloe mixer has been questioned
several time on this side of the pond.

> In the 70s in Technical Topics column of Radio
Communication, or at that time still called RSGB
Bulletin, a similar circuit was published by a G-Ham.
It was an SSB Modulator for an HF phased transmitter.
It used CMOS ICs. I do not remember if it did use
CD4053 or something similar.
The improvement on the Tayloe mixer came with the use
of FST3253

73

Gian
I7SWX

73

Gian
I7SWX

73

Sverre
LA3ZA



 
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