Specifications

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Install the tubes into the correct locations using the diagram on the following page.

You have four tubes. The largest is an 8-pin tube also known as an octal tube. This is

your rectiﬁer. There is a centering pin with a locator on this tube so that the tube isn’t

rotated out of position. The centering pin is longer than the tube pins so use it to locate

the correct rotation of the tube and then insert the tube into the socket.

The remaining three tubes are 9 pin tubes and are located by a simple gap between

two of the pins. Simple observation makes it easy to correctly install these tubes. Just

make sure the smaller tube pins of these tubes are not bent or need straightened

because damage could occur to the tube socket on the ampliﬁer.

After the tubes are installed, plug your source A and if you have it, source B into the

ampliﬁer. Make sure the level controls for each are turned all the way up (clockwise).

Insert the power cord and take a moment to notice the hidden door for the 3 amp fast

or slow blow 5x20mm fuse. It can be pried open with a small screwdriver to reveal the

fuse. There is also a spare fuse inside.

When a rectiﬁer tube fails, the fuse will blow. That is the only thing that will blow the

fuse. If this happens, replace the fuse and turn the unit on without the rectiﬁer tube

installed. If the tubes start to glow, your amp is OK and the rectiﬁer tube was likely

bad. If you re-install the rectiﬁer and the fuse blows, you can be certain the rectiﬁer

tube has failed.

Turn the volume at the front of the ampliﬁer all the way down. Turn on the ampliﬁer and

wait for the tubes to warm up and the meters to read aprox 30 milliamps. This will take

about a minute. Once the meters have stabilized you can insert the headphones and

raise the volume.

O W N E R S M A N U A L

Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com