As a (retired) career power company employee I can say with
reasonable certainty that the transformer oil that was available
to --most-- scrounging hams since the introduction of the Cantenna
was -unlikely- to contain PCB's.
At least in the circumstances familiar to me, PCB-containing
Ken
Broadcast transmitters delivered from RCA GE up to at least 1968 had PCBs
in the oil filled capacitors and some transformers. I know this because I
had to spend a significant portion of the transmitter replacement budget
just to mitigate our disposable liability. Prior to replacing, the
When was the Heath Cantenna introduced? I know it was already old news
when I got started in 1968. I found a reference to it in an old 73
article in the January 1963 issue:
The Heath Cantenna - 73 gets out the can opener W3UZN 62
Had PCBs already been discontinued by then?
It
Yes Al, I also view the matter as mostly hysteria driven. I know
of no employee who has had any illness traced to PCB's, but like
many such illnesses it's impossible to know the actual cause/s.
As far as I know, OSHA has not made an issue of the work that
continues today.
73! Ken
Cc: elecraft@mailman.qth.net
Sent: Tuesday, March 02, 2010 12:44 PM
Subject: [Elecraft] OT: Transformer oil in DL's
As a (retired) career power company employee I can say with
reasonable certainty that the transformer oil that was available
to --most-- scrounging hams since the introduction
Sort of my question. In about 1969 when I was a lab tech for a small
college I was given 5 gal out of a 55 gal barrel of transformer oil
they had for X-ray machine transformers. I still have that pail,
tightly capped, sequestered in a junk but dry trailer away from my
buildings. Haven't
K6KBE Take a look at this site.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1568545/
PCBs were is use well into the late 70's.
Mel,
--- On Tue, 3/2/10, Alan Bloom n...@cds1.net wrote:
From: Alan Bloom n...@cds1.net
Subject: Re: [Elecraft] OT: Transformer oil in DL's
To: Ken Kopp k
of it legally.
That's all.
Sorry if I ruffled any feathers.
73,
-- Dave, N8SBE
Original Message
Subject: Re: [Elecraft] OT: Transformer oil in DL's
From: David Christ radio...@mchsi.com
Date: Tue, March 02, 2010 5:20 pm
To: n...@cds1.net, Ken Kopp k...@rfwave.net
Cc: elecraft
The Cantenna was introduced sometime between late 1959 and 1961 if I
remember correctly, without the oil which had to be provided by the buyer.
Either 'Transformer' or 'Mineral' oil was used by most people who had bought
the Cantenna back then.
Geoff
GM4ESD
On Tuesday, March 02, 2010 at 9:49
I got mine in the mid 1960s and filled it with transformer oil from the
power company that employed my father. I sadly took it to a hazardous
material disposal service sponsored by the local government in the late
1990s.
Jim N7US
-Original Message-
The Cantenna was introduced
Message -
From: Ken Kopp k...@rfwave.net
To: Dave New, N8SBE n8...@arrl.net; Ken Nicely k...@nicelyweb.com
Cc: elecraft@mailman.qth.net
Sent: Tuesday, March 02, 2010 12:44 PM
Subject: [Elecraft] OT: Transformer oil in DL's
As a (retired) career power company employee I can say
I still have a cantenna (lid and resistor) that I bought in the early
sixties. The bottom part of the can has been replaced many times. I
always filled it with mineral oil. My elmer said to use mineral oil,
that the other stuff stank if the can rusted. So I did. Have never
been able to find
I recently bought and dismantled a 50KW AM station and the transmitter
was a
Harris, made in 1979, the transformer tested for PCB. The capacitors
were ok.
I checked the manufacturer of the transformer and they provided info that
they used PCB oil until approx 1979 or 1980.
So unless you know
So when can we expect to hear the rig on 160 meters?
grin
- Jim, KL7CC
Merv Schweigert wrote:
I recently bought and dismantled a 50KW AM station and the transmitter
was a
Harris,
__
Elecraft mailing list
Home:
We've hit max postings limit for OT threads with the Cantenna/PCB
discussion. Let's end this thread for now.
73, Eric WA6HHQ
List Moderator
_..._
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
15 matches
Mail list logo
