[Boatanchors] what is a tubular capacitor these days
hwhall at compuserve.com
hwhall at compuserve.com
Mon Jan 6 02:07:22 EST 2020
A .046mfd cap is not going to be an electrolytic. Electrolytics were used to achieve large capacitance & voltages in small packages.I expect that a poly replacement will work fine. Like the original, it's insulator & conductor materials rolled up to get the labeled capacitance.
WayneWB4OGM
-----Original Message-----
From: Brian <brianpepperdine at sympatico.ca>
To: boatanchors at mailman.qth.net <boatanchors at mailman.qth.net>
Sent: Sun, Jan 5, 2020 4:47 pm
Subject: [Boatanchors] what is a tubular capacitor these days
As a learning exercise, I am looking to restore an old Heath VTVM here.. since there is a video on it. Anyhow, one of the things in it that is NOT labelled as an eletrolytic capacitor per se (there is one part that is an electrolytic).. is a cap named in the parts list as a Tubular capacitor .046 mfd at 1600 volts.
What is that these days. ... I see what appear to be a lot of old type caps that are tubular in shape.. I think they are mostly wax / paper kind of things.
Is this thing - "1600 Volt Metalized Polypropylene metalized polyprop film" - a correct and proper thing to use? I think they used to be called Sprague Orange Drops (maybe) or is there some other common and available sub with a current nomenclature?
Thanks, Brian VE3VAW -
______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net
List Administrator: Gary Harmon, K5JWK
** For Assistance: gharmon at idworld.net **
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to hwhall at compuserve.com
More information about the Boatanchors
mailing list