> - Original Message - From: "Bill Wichers"
> To: "Tom W8JI"
> Cc: "HAROLD SMITH JR" ; "Shoppa, Tim"
> ; ;
> Sent: Saturday, February 01, 2014 4:05 PM
> Subject: Re: Topband: Submerging variable caps in oil as substitutefor
Dissipation factors for particular oils are found here:
http://www.icrepq.com/icrepq'12/538-toudja.pdf
I cannot comment on the accuracy of the data.
Terry K4RX
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Tom W8JI
The major issue with dielectric
uot;HAROLD SMITH JR" ; "Shoppa, Tim"
; ;
Sent: Saturday, February 01, 2014 4:05 PM
Subject: Re: Topband: Submerging variable caps in oil as substituteforvacuum
variables
I was reading this thread and all the concerns about oil in the capacitor.
Has anyone ever thought about t
TH JR ;
Shoppa, Tim; n...@contesting.com ;
topband@contesting.com
Subject: Re: Topband: Submerging variable caps in oil as
substituteforvacuum variables
The large Bird dummy loads use oil up into the low microwave region.
Carl
KM1H
- Original Message -
From: "Tom W8J
The large Bird dummy loads use oil up into the low microwave region.
Carl
KM1H
- Original Message -
From: "Tom W8JI"
To: "HAROLD SMITH JR" ; "Shoppa, Tim"
; ;
Sent: Thursday, January 30, 2014 5:32 AM
Subject: Re: Topband: Submerging variable caps
Very true but the RF is still in the oil "dielectric" from the coax
connector to the hot end of the resistor.
Not the same at all.
Loss tangent is meaningless in the dummy load application because impedance
is low (weak electric field). There is very little displacement current
compared to
; topband@contesting.com
Subject: Re: Topband: Submerging variable caps in oil as substituteforvacuum
variables
The large Bird dummy loads use oil up into the low microwave region.
Carl
KM1H
- Original Message -
From: "Tom W8JI"
To: "HAROLD SMITH JR" ; &quo
