[450] Guess the component
Paul Cianciolo
paulc at snet.net
Thu Dec 28 15:44:57 UTC 2023
John was the closest.
The piece is a attenuator, a precision 10 GHZ attenuator 6 dB.
The “dumbbell” was housed in a aluminum cylinder that kept a constant impedance thru the pad.
The blue discs are 155 ohm resistors from the center brass ring to the out edge and the cylinder in the middle is a 39 ohm resistor.
Those values in a PI configuration = a 6 db attenuator…
See below
PaulC
W1VLF
Check out my <https://www.youtube.com/user/W1VLF/videos> Youtube Channel W1VLF
From: 450 [mailto:450-bounces at lists.vhfwiki.com] On Behalf Of Daniel May
Sent: Wednesday, December 27, 2023 3:25 PM
To: 450 List
Subject: Re: [450] Guess the component
Old style (antique radio) variable resistance volume control.
On Wed, Dec 27, 2023, 2:42 AM John Foege <john.foege at gmail.com> wrote:
I also thought "dumbbell for a dwarf"...
It looks like some thru-line section for an oil filled dummy load....
What is it?! Tell us!
On Sun, Dec 24, 2023, 5:50 PM Robert Busino <n1ujs at toast.net> wrote:
Still awaiting your last response!
_____
From: "Paul Cianciolo" <paulc at snet.net>
Sent: Friday, December 22, 2023 2:36 PM
To: 450 at lists.vhfwiki.com
Subject: [450] Guess the component
Hazard a guess as to what this is?
PaulC
W1VLF
Check out my Youtube Channel W1VLF <https://www.youtube.com/user/W1VLF/videos>
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