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7
Specifications
A 12AX7 dual triode vacuum tube (valve)
is at the core of your Bassman TV panel
series amplifier. Typically a 12AX7 tube will
last several years, but through heavy use and
frequent transportation jarring, it is possible
to have a tube last less than a year.
When to replace the preamp tube:
Sometimes as tubes wear out they become noisy or
“microphonic” (the amp sounds like a glass chime during certain
notes), but other times tubes will fail without warning. If your
amplifier stops working and other possible causes have been
eliminated (breakers, cords, etc.), have an authorized service
center inspect your amplifier for tube failure.
Tube Replacement
MODEL: Ten Twelve Fifteen Duo Ten
TYPE: PR 806 PR 807 PR 808 PR 811
PART NUMBERS: 2248100000 (120V~, 60Hz) 2248200000 (120V~, 60Hz) 2248300000 (120V~, 60Hz) 2248400000 (120V~, 60Hz)
2248101000 (110V~, 60Hz) TW 2248201000 (110V~, 60Hz) TW 2248301000 (110V~, 60Hz) TW 2248401000 (110V~, 60Hz) TW
2248103000 (240V~, 50Hz) AUS 2248203000 (240V~, 50Hz) AUS 2248303000 (240V~, 50Hz) AUS 2248403000 (240V~, 50Hz) AUS
2248104000 (230V~, 50Hz) UK 2248204000 (230V~, 50Hz) UK 2248304000 (230V~, 50Hz) UK 2248404000 (230V~, 50Hz) UK
2248105000 (220V~, 50Hz) ARG 2248205000 (220V~, 50Hz) ARG 2248305000 (220V~, 50Hz) ARG 2248405000 (220V~, 50Hz) ARG
2248106000 (230V~, 50Hz) EUR 2248206000 (230V~, 50Hz) EUR 2248306000 (230V~, 50Hz) EUR 2248406000 (230V~, 50Hz) EUR
2248107000 (100V~, 50/60Hz) JPN 2248207000 (100V~, 50/60Hz) JPN 2248307000 (100V~, 50/60Hz) JPN 2248407000 (100V~, 50/60Hz) JPN
2248109000 (220V~, 60Hz) ROK 2248209000 (220V~, 60Hz) ROK 2248309000 (220V~, 60Hz) ROK 2248409000 (220V~, 60Hz) ROK
POWER REQUIREMENT:
400W 400W 950W 950W
INPUT IMPEDANCE: 1M (Input 1) / 135K (Input 2) 1M (Input 1) / 135K (Input 2) 1M (Input 1) / 135K (Input 2) 1M (Input 1) / 135K (Input 2)
POWER AMP OUTPUT: 150W into 4 @ <0.3% THD, 1kHz 150W into 4 @ <0.3% THD, 1kHz 350W into 4 @ <0.3% THD, 1kHz 350W into 4 @ <0.3% THD, 1kHz
TUBE COMPLEMENT: One 12AX7 One 12AX7 One 12AX7 One 12AX7
SPEAKERS: One 4Ω, 10", Celestion, One 4Ω, 12", Celestion, One 4Ω, 15", Celestion, Two 8Ω, 10", Eminence,
(P/N 0077183000) (P/N 0077170000) (P/N 0077195000) (P/N 0077207000)
DIMENSIONS: Height: 18 in (45.72 cm) Height: 20 in (50.8 cm) Height: 23 in (58.42 cm) Height: 23 in (58.42 cm)
Width: 20 in (50.8 cm) Width: 22 in (55.88 cm) Width: 25 in (63.5 cm) Width: 25 in (63.5 cm)
Depth: 11.75 in (29.845 cm) Depth: 12.75 in (32.385 cm) Depth: 14 in (35.56 cm) Depth: 14 in (35.56 cm)
WEIGHT: 38.05 lb (17.26 kg) 44.6 lb (20.23 kg) 61.5 lb (27.8 kg) 66.5 lb (30.23 kg)
Product specifications are subject to change without notice.
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