[GreenKeys] Transmit tubes on eBay for AN/URC-35(x) INEXPENSIVE!

[Don Robert House]

Thanks Roy.

These links are keepers.

I do not know about the 8117 and 5894 but the 8116 has two large  
plates with gold pins sticking out of the top for sinking heat to the  
front of the RF amplifier.

Thanks again,
Don
K9TTY

On 24 Nov 2009, at 10:16 PM, Roy Morgan wrote:

>
> I noticed the 8116 is identical with the more common 5894.  The tube
> manuals I have list the 8117 but not the 8116.  The 8117 is physically
> identical to the 5894 including filament at 6.3 or 12.6 V.  So I am  
> wondering
> about the 8116 fil voltage?   Anyone know?

I think it's 24 volts.
(pause to check the info at Tube Data Sheet Locator:
http://tdsl.duncanamps.com
No home should be without this link.

That leads me to the tabular data from Amperex at:
http://wps.com/archives/tube-datasheets/Datasheets/Amperex-CC-363/6.JPG
and:
http://wps.com/archives/tube-datasheets/Datasheets/Amperex-CC-363/7.JPG

8116   26.5 or 13.25 volts
8117   12.6 or 6.3 volts

Roy


Roy Morgan
k1lky at earthlink.net
529 Cobb St.
Groton NY, 13073
Home: 607-898-3607
Cell: 301-928-7794