[Amps] Drawing of SK-860 Socket

[David Kirkby]

Crawfish wrote:

> I need a drawing of the Eimac SK-860 socket for the 3CX1000A7 tube. I need to know which pin is which. I know one side of th filament is on the last plate, but need a factory drawing. Thanks in advance!!
>                                                                                                               Joe W4AAB
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Do you have the *full* data sheet for the tube - I suspect that will 
give you the information you need? Page 4 of the 3CX1000A7 data sheet, 
(a copy of which is on my web site)

http://www.g8wrb.org/data/Eimac/3CX1000A7.pdf

does not show the socket, but does show the pin out of the tube. The 
bottom connection is heater only, the one above is heater+cathode, the 
one above that the grid and I think you know where the anode is. From 
that is should be easy to work out what pin is what on the SK-860 socket.

Note the 3CX1000A7's  data sheet (page 3)  says you can use either the 
SK-860 or SK-870 socket, with the latter having the grid contacts grounded.

I suspect you were using the abbreviated data on Eimac's web site, which 
does not have all this information, but the full data sheet does. If you 
still need a drawing of a socket, I suspect you will have to ask Eimac. 
If you get one I'd like to take a copy to put on the above web site.

IMPORTANT Anyone visiting the above site please do not recursively copy 
the whole site, as I don't have the bandwidth to make this practical - 
it slows this site, and others hosted on the same server too much. There 
is only an ADSL connection with a 56-256 bkit/s uplink (i.e. download 
for anyone taking things from the web site). I found someone the other 
night doing this *HtTrack (*a tool designed to mirror web sites) and 
blocked his IP address for a day.  I hope to add a bandwidth limiter 
soon, which will allow people to get grab everything all at once.

-- 
Dr. David Kirkby, 
G8WRB

Please check out http://www.g8wrb.org/ 
of if you live in Essex http://www.southminster-branch-line.org.uk/