[Boatanchors] TV-7 B/U DATA

[Richard Knoppow]

----- Original Message ----- 
From: "w7fe" <w7fe at cox.net>
To: "Olaf Madsen" <olaf at carolina.rr.com>; 
<boatanchors at mailman.qth.net>
Sent: Friday, January 16, 2015 4:55 PM
Subject: Re: [Boatanchors] TV-7 B/U DATA


> 6.3 fil
> ET1-5627
> Bias 11
> Range D
> Min value 28
>
> Data also good for 6HR6
>
>
>
> Sent from my Verizon Wireless 4G LTE smartphone
>
> -------- Original message --------
> From: Olaf Madsen <olaf at carolina.rr.com>
> Date: 01/16/2015  4:11 PM  (GMT-08:00)
> To: boatanchors at mailman.qth.net
> Subject: [Boatanchors] TV-7 B/U DATA
>
     I wonder if this is correct. The base connections for 
the 6HS6 are identical to the 6AU6, for that tube the 
selectors are set for ET1-5672, is it possible the above is 
a typo?
     It would be interesting to know the source since the 
6HS6 does not seem to be in any of the tube data up-dates 
for the TV-7.
     The 6HS6 is similar to the 6AU6, a sharp cut-off 
pentode but with about double the Gm, 9500 uMho vs about 
4500 uMho for the 6AU6.  I was able to get reasonable tests 
on the TV-6D/U by setting up for a 6AU6 and increasing the 
bias to reduce the reading to about half. A 6HS6 then read 
about right but it would be nice to have some authoritative 
settings for it.