[Boatanchors] Tektronix Type W Plug-In Unit

[eldim at att.net]

Hello Jeff,
The NUVISTOR Electron Tube that you have is a Type 8056 "Triode" most likely manufactured by RCA.
The TEK TYPE "W" is an Oscilliscope Plug-In Module designed to fit the Tektronix  500 Series Oscopes.  It is a Differential Comparator or Pre-Amplifier Vertical Plug-in usable up to 23 MHz Bandwidth.  You could also use it in the TEK clones such as the Lavoie LA-545 Oscopes or other equivalents series oscopes.  You can find SIEMENS Data Sheets on this Triode Nuvistor at Frank's Tube Data Sheets. It has a 6.3 Volt Filament.  Date Code was May 1948.

Best regards,
Glen Galati, KA7BOJ
Tacoma, WA
eldim at att.net


-------------- Original message from n2lxm at juno.com: -------------- 


> Tektronix Type W Plug-In Unit 
> 
> High Gain Differential Comparator 
> 
> 
> Greeting's All, 
> 
> Can any one shed some light on a two-tube device used in the Tektronix 
> plug-in. 
> It's a small oblong device mounted on a floating sub chassis and appears 
> tube house two RCA Nuvistor tubes. I was able to remove the tubes from 
> their holder; the only markings are as follows. 
> 
> RCA Nuvistor 5-48 ( date code I think ) 
> 
> 167 079 (printed in ink on the top) 
> 
> 8056 330 (stamped into the metal on top) 
> 
> Dose Anyone have a way of or know what tubes this is. Any and all help 
> will be greatly appreciated. Thank You. 
> 
> Jeff N2LXM 
> American 
> Patriot 
> Amateur Radio Operator 
> Proud Father of Two U.S. Marines 
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