[R-390] 390A audio

[Roy Morgan]

At 08:45 AM 9/6/2007, Tim  Shoppa wrote:

Re: the HP-3550a Carrier Test set (AN/USM-181)

> >  Fair Radio with one.  ..
> > <http://www.fairradio.com/catalog.php?mode=view&categoryid=187>

This test set is quite handy, and runs on batteries.

>For super-low-distortion oscillators look at Jim Williams' Linear Technologies
>app notes. Wien bridge oscillators engineered down to 0.001% distortion
>- very very good stuff.

I found those articles at:
http://www.linear.com.cn/company/news/media_art.jsp
The low distortion oscillator is at:
http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=12002
"µP-Controlled Oscillator Delivers Rock-Bottom Distortion"


Roy


- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing
13033 Downey Mill Road, Lovettsville, VA 20180
Phone 540-822-5911   Cell 301-928-7794
Work: Voice: 301-975-3254,  Fax: 301-975-6097
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