[CVCC] [CVCC Members] Fwd: [PVRC] Peter W. Dahl, dies at age 71

k2waltk k2waltk at gmail.com
Mon Aug 22 16:07:01 EDT 2011


Hi Joe,

Thanx for the heads up on the passing of Peter Dahl.  His tape-wound
Hypersil  transformers were installed in equipment worldwide.  I used one of
his Hypersil HV xfrms in a homebrew amp I built 20 yrs ago.  It was rated at
3Kv @ 1.5A CCS.  Yes, CCS!  My Alpha also has a Peter Dahl Hypersil The 87A
can run 1.5 kW, key down, forever.  And believe you me it can, I've run many
RTTY contests for long periods of time (lots of CQ'ing) and it ran with out
a hiccup.  Mind you that the 87A is late 80's technology.  Remember the
brick on the key?  Much of the amp's reliability comes from the design of
the power supply. The ability to power a 3kW (input) relatively small,
desktop amp starts with that Hypersil transformer.  Thanx for the trip down
memory lane, Joe.  Oh yea, there is a picture attached which shows six (6)
of his 150KVA TV Klystron power supplies in service (at some time) in
Raleigh, NC.
my $0.02...

					73 de Walt - K2WK



{}-----Original Message-----
{}From: cvcc-bounces at c-v-c-c.us [mailto:cvcc-bounces at c-v-c-c.us] On Behalf
Of
{}K3WRY at aol.com
{}Sent: Monday, August 22, 2011 2:08 PM
{}To: cvcc at c-v-c-c.us; ddxg-all at ddxg.net
{}Subject: [CVCC Members] Fwd: [PVRC] Peter W. Dahl, dies at age 71
{}
{}FYI------------
{}
{}Dr Joe Palsa  k3wry
{}
{}
{}
{}____________________________________
{} From: Erosenberg at ntia.doc.gov
{}To: pvrc at mailman.qth.net
{}Sent: 8/22/2011  12:52:50 P.M. Eastern Daylight Time
{}Subj: [PVRC] Peter W. Dahl, dies at age  71
{}
{}
{}>From RADIO WORLD:
{}
{}Peter W. Dahl, known for his  custom-wound transformers, died Aug. 15.
{}
{}This week's obituary stated  that he died after a long illness. According
{}to a past Radio World story, he  had been battling Parkinson's. The
{}progression of the disease had forced the  shuttering and liquidation of
his El
{}Paso,
{}Texas-based business, Peter W. Dahl  Co. Much of his business was
purchased
{}and designs acquired by Harbach  Electronics.
{}
{}Dahl was best known for his custom-wound transformers.  They were
{}particularly popular amongst ham radio operators, though he  also
{}counted radio and TV stations among past clients. He started in that
{}business while still at the University of Minnesota in 1964. Dahl used
{}call  sign K0BIT.
{}
{}He had worked for Honeywell, Atlantic Research and  Brunswick. His company
{}also did contract work for the U.S.  government.
{}
{}Radio World contributor Charles "Buc" Fitch was an admirer.  "It's hard to
{}argue with quality, and his firm made a quality product," he  said
{}today. "Literally thousands of transformers and power systems, many of
his
{}own design, are a tribute to Peter's ability and standards as  they
{}continue to operate day in and day out all over the  world."
{}
{}Dahl is survived by his wife of 46 years, Clarice; daughter  Tamra and
{}sister, Priscilla. He was involved in a number of  community
{}activities, had been a ham himself and was an active  Mason.
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