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6AC5
11/7/1999 9:39:41 PMCarter Hendricks
Can anyone point me towards original
uses [and schematics] for the 6AC5
output tube?

Thanks!! --Carter

11/7/1999 10:50:49 PMJohn McPherson
: Can anyone point me towards original

: uses [and schematics] for the 6AC5

: output tube?

: Thanks!! --Carter

The tube is listed in the RCA references as a power triode. It is rated 10 watts average dissipation. The tube diagram and specifics should be on this site in the "tube substitution/specifications" area.

Here are a few decent links to check:

http://www.triodeel.com/dusty1.htm

http://www.eden.com/~keen/tubeampfaq/tube_amp.htm

http://www.qnx.com/~danh/tubeweb.html

11/8/1999 12:37:18 AMErich Loepke
: Can anyone point me towards original
: uses [and schematics] for the 6AC5
: output tube?

: Thanks!! --Carter

The 6AC5 is a zero-bias triode used in class B push-pull
amplifiers. It operates with no negative bias on the grid.
These types of circuits are used in PA amplifiers and auto
radios where the much higher distortion of zero-bias
class B is of lesser concern and the higher efficiency
is desired. Zero-bias tubes are almost always driven by
a step down transformer and a driver circuit that is a
power amplifier in its own right because the output tube
grids are driven positive and therefore draw appreciable
current. Circuits using these type tubes (6AC5, 6N7, 6A6,
6E6) are given in earlier RCA tube manuals. I'll scan and
email a circuit from RCA tube manual RC-14 (1940) that
will give you an idea of how these circuits look. I'll also
send the RCA data for this tube.



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