Rivera Quiana Studio Owner's Manual page 10

Mains Fuse – Quiana 100 and Fandango 100
For 100VAC versions, the Mains Fuse is:
5 Amp, 250 Volt Slo-Blo type (size 3AG, or MDL)
For 115VAC versions, the Mains Fuse is:
4 Amp, 250 Volt Slo-Blo type (size 3AG, or MDL)
For 230VAC versions, the Mains Fuse is:
T 2A (time-delay, 5mm x 20mm size)
HT Fuse
The power amplifier circuit has its own fuse for protecting the output section from short
circuits and transient current peaks that exceed the normal current draw. These
conditions are usually caused by a bad tube. When a short circuit or transient peak
causes the fuse to blow, the output tubes should be checked and replaced, if
necessary.
For 100VAC and 115VAC versions, the HT Fuse is:
1/2 Amp, 250 Volt Slo-Blo type (3AG, or MDL)
For 230/250 VAC versions, the HT Fuse is:
T 500ma (time-delay, 5mm x 20mm size)
HT Fuse – Quiana 100/Fandango 100
For 100VAC and 115VAC versions, the HT Fuse is:
1 Amp, 250 Volt Slo-Blo type (3AG, or MDL)
For 230VAC versions, the HT Fuse is:
T 1A (time-delay, 5mm x 20mm size)
Note: Repeated blowing of this fuse is a clear indicator of a defective
output tube. Always use the correct fuse value when replacing the HT
Fuse.
If the Mains Fuse or the HT Fuse repeatedly blows, refer your amp to your local
RIVERA dealer or contact us at (818) 833-7066 for further service assistance.
Vintage-Modern switch
Switching amongst the two settings will produce a change of output power as well as
harmonic balance. In Modern mode, the output power amplifier operates in "Pentode"
and will sound the cleanest, have the most headroom, and sound bright, with odd
harmonics (i.e.1,3,5,7, etc.) more noticeable. Vintage mode brings the output tubes to
work in "Triode" mode, halving the power selected by the High-Low power switch, and
lowering the odd harmonics while raising the even (2,4,6,8, etc.) resulting in a sweeter,
darker tone. Do not switch while playing. Best way is to place the amp on standby first,
then switch.
Speaker outputs
A speaker must always be connected to your Quiana/Fandango. The amp is designed
to deliver at least 50 watts to a 4-16 ohm speaker load (with the Impedance selector
Quiana and Fandango 1.0 p 10