WARNING –READ THE MANUAL CAREFULLY BEFORE INSTALLING
YOUR ALPHA 99.
The ALPHA 99 is extremely easy to install, but failure to carry out
each procedure exactly as described in the manual is likely to lead to
amplifier damage which is not covered under warranty. Damage to
other station equipment also may result.
Before Installing Your Alpha 99
1. Be careful not to twist or warp the chassis when handling the amplifier with its
cover removed. Never lift the chassis by a corner, especially when the transformer
is in place. Never apply AC power without the transformer properly and fully
installed.
2. When installing or removing the transformer, move carefully and follow the
instructions in this manual exactly. Insure that all connectors are properly mated
and fully seated. Don’t force them! Tuck the lifting handle out of the way so that
the interlock can close.
3. Ensure that both tubes are solidly seated in their sockets with the red silicone
rubber chimneys firmly seated against the chassis. The delrin posts over the tubes
are to keep the tubes from shifting during transit, they can be removed but should
be replaced if the amplifier is to be shipped.
4. Connect the green conductor in the ALPHA 99 power cord only to the power
source neutral or ground. Connecting the green wire to a “hot” line is almost
certain to cause immediate damage. Triple check your wiring before
plugging in!
5. Make sure the primary power tap is connected to the tap closest to your actual AC
voltage. See Manual Section 3. You should mesure your line voltage with a digital
meter for accuracy.
6. Solidly ground all station equipment together. Heavy braid, such as the outer
conductor of RG-8/U coaxial cable, is recommended for the purpose. This is
important for personal and equipment safety as well as to avoid feedback.
7. Never install cover screws longer than ¼”. Longer screws may penetrate
internal boards or wiring and cause severe damage. Make sure each screw hole in
the cover is aligned with its corresponding captive nut in the chassis before
inserting screws.
8. Remove the fan retaining screws before operating the amplifier, the screws can
interfere with fan operation.
Radio Alpha Products Inc. ® Alpha 99
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