[time-nuts] Yokogawa TA320 Time Interval Analyzer

dlewis dlewis6767 at austin.rr.com
Mon Oct 6 20:12:16 EDT 2014


...Of which the venerable HP 4260A was born.  As were others, including the 
futuristic HP 4191A.

While these units were badged 'HP' and extremely well designed (by Yoko...) 
the 'feel' inside them, when you repair one of them, is definitely not up to 
HP stateside standards. (IMHO)

http://www.hpmemory.org/wb_pages/wall_b_page_09.htm
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1980-01.pdf

-Don
KG5CID










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-----Original Message----- 
From: Tommy phone
Sent: Monday, October 06, 2014 6:44 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Yokogawa TA320 Time Interval Analyzer

Yokagawa is/was a Japanese instrument manufacturer that was acquired by HP 
some 30 years ago, and for a number of years after that used the name 
Yokagawa-HP on their products. Vestiges of that operation still exist within 
Keysight.


>From Tom Holmes


> On Oct 6, 2014, at 7:14 PM, "Dr. David Kirkby (Kirkby Microwave Ltd)" 
> <drkirkby at kirkbymicrowave.co.uk> wrote:
>
> I see this on eBay
>
> http://m.ebay.com/itm/220505574616
>
> Note that the seller has misspelled the manufacturers name. Has anyone 
> used
> one? I have never even heard of this manufacturer - I guess it is Chinese.
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