21 Apr
2005
21 Apr
'05
5:47 p.m.
On Thu, 21 Apr 2005 09:31:08 -0700 (PDT)
Tom Jennings <tomj at wps.com> wrote:
On Wed, 20 Apr 2005, William Donzelli wrote:
Listers' favorite 'scopes, the Tek 5xx series, often have them in
the vertical plugins.
The first generation Tek 453, 'the version to avoid' has nuvistors in
the front end. The 453 and 454 are the last-generation Tek scope to not
include custom unobtanium semiconductors.
- What
was/is the smallest tube? purpose?
RCA's Nuvistor - a family often found in late 1960s TV tuners and
some test equipments. They are almost always triodes, and are really
small - 3/4 inch long, maybe 3/8 inch diameter, all metal. RCA made
a few half sized Nuvistors, but never sold them.