Rivera Knucklehead Reverb KR 100 T Anleitung zur Fehlerbehebung PDF herunterladen (Seite 40)

Knucklehead Reverb 1.0 p 40

Make sure that nothing is plugged into speaker Jack #1. Place a appropriate load on

Speaker Jack #2 if this is possible. If not, you will be ok as there will be no signal

present.

No signal of any source should be plugged into the front panel input jacks or the rear

panel effects loop jacks.

Turn the amp on. Make sure that the High/Low Power switch is in the “High” position,

and the Standby switch is in the “On” position.

After the tubes warm up, observe the idle current. For 55 Versions (2 output tubes),

adjust for 80-90 MaDC. For 100 Versions (4 output tubes), adjust for 160-180 MaDC.

The actual setting you choose will depend on the particular tubes used and their DC

Current gain. For example, a really high gain EL-34 should be biased colder (40 MaDC

per tube) then a low gain tube which may sound best run hotter (45 MaDC per tube).

After biasing, replace chassis carefully into the cabinet head shell, install mounting

bolts, reconnect reverb cables, and install rear grille. Be careful to align chassis

carefully with the front grille so that the front panel is parallel with the front grille.

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Rivera Knucklehead Reverb KR 100 T Anleitung zur Fehlerbehebung Seite 40