Very much On Topic: Integrated Vacuum Tubes

[Peter C. Wallace]

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---
>
>>> - 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.
>
> 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