- 3 -
In the course of operation, if either of the EL84 / 6BQ5 plates (the gray, chimney-shaped structure inside the
tube) glows a dull to bright red color soon after warmup or suddenly during operation, it is probable that the tube
is defective.
Turn the amplifier off immediately and do not continue to operate it with a defective tube as
other parts will be damaged, requiring return of the amplifier to Wright Audio.
If tube substitution does
not solve the problem, refer servicing to Wright Audio. If one output tube fails, the replacement should match
the other tube’s manufacturer and type for satisfactory operation.
Wright Audio supplies suitable matched sets of replacement tubes at reasonable prices. Contact Wright Audio.
TROUBLESHOOTING
The unit has been designed to be as free from trouble as possible. However, a couple conditions may occur which
may affect the amplifier's operation or make it inoperative.
FUSE FAILURE
If the fuse fails, it is likely that one of the output tubes is defective as described above. If the fuse fails again soon
after its replacement or after a defective tube is replaced, please contact Wright Audio.
NOISE
Any noise or hum encountered during the life of the amplifier will normally be traced to dirty or otherwise poor
connections at the input/output jacks, faulty tubes, poor tube pin-to-socket connection or a system ‘ground loop’.
The best remedy is to apply isopropyl alcohol to a cotton swab which can be used to clean the connection. Do not
use spray-type contact cleaners on the tube sockets or around the connections at the rear of the amplifier as this
may damage the finish or parts. For a ground loop issue, be sure not more than one component is connected to the
AC socket with a 3-prong plug.
IN CASE OF A PROBLEM OR QUESTION
Your continued satisfaction with our products is extremely important to us. We will be happy to answer your
questions pertinent to the installation and operation of your unit. If the problem cannot be resolved through our
combined efforts, we may wish to authorize the return of your unit to us.
UNDER NO CIRCUMSTANCE SHOULD YOUR UNIT BE SHIPPED TO WRIGHT AUDIO WITHOUT
AUTHORIZATION. Ship PREPAID via UPS or FEDERAL EXPRESS only. Be sure to INSURE the product for the
full replacement cost. COLLECT shipments cannot be accepted.
Pack the unit in the original boxes, if available. If not, be sure to pack with at least 3 inches of packing material
around the amplifier. Complete return instructions are at www.WrightAudio.us
Wright Audio
www.wrightaudio.us
