21 Apr
2005
21 Apr
'05
6:57 a.m.
On Thu, 21 Apr 2005, Dave Brown wrote:
----- Original Message ----- From: "William Donzelli" <aw288 at
osfn.org>
To: "Wai-Sun Chia" <waisun.chia at gmail.com>; "General Discussion:
On-Topic and
Off-Topic Posts" <cctalk at classiccmp.org>
Sent: Thursday, April 21, 2005 3:47 PM
Subject: Re: Very much On Topic: Integrated Vacuum Tubes
snip---
Some mil gear (eg PRC-41) has very small ceramic tubes -not sure if they are
quite as small as the Nuvistor but they must be close- likewise some hearing
aid amp tubes were pertty damn small as well.
DaveB, NZ
The GE 7000 series ceramic tubes are probably smaller than Nuvistors.
I used to have one here in my desk drawer, but being so small, naturally its
lost now...
(7077 for example)
Peter Wallace
- 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.