REAR PANEL:
WARNING: Unplug power before replacing fuse or removing bolts mounting
chassis FUSE SILICON FAN
DIODES ON
FUSE
POWER | FUSE | TUBE | FAN |
120 V~ | 4 A | RECTIFIER | OFF |
TRACKING | |
60 Hz | SLO | | |
4 A | BLO | | |
First set sound with LOOP bypassed. Then set SEND & OUTPUT to 50% for unity gain. With LOOP IN, adjust
SEND to match FX.
Use OUTPUT for
RETURN level and live volume control.
| | | | LONE STARMESA BOOGIE | ALL - TUBE | | | | | | |
| | | | AMPLIFIER | | | | | | |
| | SEND | RETURN | CH 2 REVERB CH 1 | REVERB | | | BIAS SELECT | | |
NORMAL | LOOP | CHANNEL | SOLO | SPEAKERS | |
| | | | IN | BRIGHT | | | EL-34 | EL-34 | | |
| | | | | | | | |
| | | | | | | | | |
MIN | | | | | | | EXT | | | | |
| | | | | | SW | | | | |
| | | | HARD BYPASS | REV WARM | | WHEN | 6L6 | | SLAVE |
SEND LEVEL | | | | | 8 OHM4 OHM | 4 OHM |
| | | | | | RED ON | |
TUBE LOCATIONS | | | | | | | | | |
| | | | | | CAUTION: SWITCH MUST | HAND BUILT IN PETALUMA CA. |
1 x 5U4 | 4 x 6L6 | | | | | | |
| | | | | | MATCH TUBES IN USE | | |
| | | | | | | | | |
FUSE: | This is the A.C.’s (Alternating Current) main fuse and provides protection from outside A .C. fl uctuations as well as power |
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tube failure damage. Should the FUSE blow, replace it with the same rating in a Slo-Blo type package. The domestic U.S. version requires a 4 amp Slo-Blo FUSE . A power tube short or failure is often the cause of a blown FUSE. ..Follow the cold start procedure mentioned in the ON/STANDBY switch section and watch the power tubes as you fl ip the STANDBY to the ON position. If a power tube is going bad or is arcing you will see it! Flip the STANDBY switch to Standby immediately and replace the faulty power tube and
WARNING: | | | the FUSE if necessary. |
Unplug power | |
before replacing | | |
fuse or removing | | |
bolts mounting | DIODES | |
chassis | FUSE | If you see nothing abnormal as you switch the STANDBY on, it is possible that a power tube shorted tempo- |
| FUSE | |
POWER | FUSE | | rarily and blew the FUSE . If this is the case it may work again normally. To be safe, you might want to replace |
| just the adjacent tube or all power tubes in the “shotgun” troubleshooting tradition and save the replaced set |
120 V~ | 4 A | TUBE |
RECTIFIER |
60 Hz | SLO | TRACKING | as spares. Spare fuses are a must for the fabled cord bag along with your spare tubes. Always carry both for |
4 A | BLO | |
| | |
they could be worth their weight in gold someday.
RECTIFIER SELECT: Diodes / Tube Rectifier Tracking | This two position toggle selects the type of rectifi er, Silicon Diodes or |
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Tube, to convert the voltage from AC to DC for the power supply. The LONE STAR incorporates a further improved version of our patented Switchable Rectifi er feature fi rst seen on the Dual and Triple Rectifier SOLO heads. It incorporates a Rectifi er Tracking™ feature that insures proper voltage is present at all times and improves reliability. This switch operates in tandem with the individual
WARNING: | | | Channel Power Select (50/100) switch located on the right side of the Front Panel. |
Unplug power | | |
before replacing | | |
fuse or removing | | |
bolts mounting | | The Rectifi er Tracking feature monitors the Channels, determines their power status and automatically selects |
chassis | FUSE | DIODES |
| FUSE | |
| | the proper rectifi er type - which ultimately assures the best sound. This provides optimization of the power |
| | |
POWER | FUSE | | settings, delivering a magical tube-rectifi ed power-sag vibe for the channel set to 50 watts - and a tighter, |
120 V~ | 4 A | TUBE |
60 Hz | SLO | RECTIFIER | bolder 100 watts of diode-rectifi ed authority for the channel set to full power. |
TRACKING |
4 A | BLO | |
Selecting DIODES chooses the solid state diode rectifi ers which deliver maximum power and headroom, while tracking tighter and imparting a quicker transient response and bolder attack. When set to DIODES , both Channels will respond with this character regardless of their individual power settings on the Front Panel. Selecting TUBE RECTIFIER TRACKING engages the 5U4 rectifi er tube automatically (either or both channels) whenever the 50 watt selection is made on the Front Panel Channel Power Select switch. When switching to the opposite channel, if the Channel Power Select is set to 100 watts, the Diodes are automatically engaged to insure proper matching to the added load on the supply.
This innovative feature allows you to tune each channel for the ultimate power expression and feel. With this fl exibility you can switch between a high power, spanking clean rhythm sound in Channel 1- and a saggy brown, old school power clip for bluesy single note solo work with the DRIVE bypassed in Channel 2. Or conversely, set Channel 1 for a sweet low power clean sound and crank up the horsepower with the DRIVE active to articulate a high gain solo voice in Channel 2. Regardless of the way you choose to dedicate your Channels, you will fi nd this power section fl exibility a remarkable step forward toward your ultimate tone.
NOTE: Don’t forget the Front Panel AC switch incorporates the reduced voltage TWEED setting. This adds yet another dimension to the power expression scenario and can produce amazing results when combined with the TUBE RECTIFIER TRACKING feature. Be sure to experiment with these two features in combination with each other.
