3. Wait AT LEAST 30 Seconds, preferably longer, for tubes to warm up.
4. Flip STANDBY to ON
NOTE: This Cold Start Procedure is an important part of ensuring maximum tube life and reliability. Like a light bulb, the most wear
occurs in the instant (short period, first few seconds) voltage is first applied. Like a light bulb, if a dimmer is used to reduce the volt
-age for the first few seconds or so of use, increased longevity is the result. The STANDBY is the amp’s equivalent to a dimmer and
using it in the above described method will ensure the longest life and best performance from a set of tubes (especially Output tubes).
REAR PANEL (Head Version)
AC MAINS SOCKET: Underneath Rear Panel (Quick Disconnect Style)
This is the AC MAINS Power Cord Socket. The
standardized removable power cable supplied with your amp can only be plugged in one way. Always connect the male end to a
grounded (3-Hole) wall socket with the proper voltage present (117 Volts on U.S.A. Models). To Avoid The Risk Of Shock, Never Alter
The Power Cable in any way. Altering the Power Cable will void your warranty and put you at risk while leaving your amplifier open to
the possibility of damage.
FUSE
This is the A.C.’s (Alternating Current) main fuse and provides protection from outside A.C. fluctuations as well as power
tube failure damage. Should the FUSE blow, replace it with the same rating in a Slo-Blo type package. The Domestic 117V and Japa-
nese 100V versions requires a 2 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 STANDBY switch section and watch the power tubes as you flip the STANDBY to the ON position. If
a power tube is going bad or is arcing, you will see it! Flip the STANDBY switch down immediately and replace the faulty power tube
and the FUSE if necessary.
If you see nothing abnormal as you move the STANDBY switch to ON, it is possible that a power tube shorted ‘temporarily’ and caused
the blown Fuse. Occasionally, whether from just luck or from cooling down, a short in a power tube ‘reconnects’ itself temporarily
and can operate normally again for a time… but this tube should be considered faulty and replaced as soon as possible to ensure
uninterrupted performance. If you can identify a tube that is arcing or shorting by the method mentioned above and the tubes have
minimal use, consider replacing the obviously faulty or failed tube and leaving the others installed.
If you haven’t changed tubes for a while after heavier use, a failure may be telling you it’s time to change all your power tubes. Save
any working but used tubes as spares.
Spare fuses (of the proper type and rating) are a must for the fabled cord bag along with at least one set of spare tubes. Always have
both on hand—at the gig or at home—since tubes decide, not you, when it’s time to stop working. Spare tubes and fuses can be
worth their weight in gold should you ever experience a tube failure, especially on a gig. We STRONGLY recommend making them a
permanent fixture in your gig bag.
REVERB
Lush all-tube Reverb drenches the TC-50’s three Channels with a beautiful 3-D halo and provides you with individual
control of the REVERB mix in each of the three Channels. It can be controlled via the included Footswitch or via MIDI messages
once the circuit is active.
HI
REVERB
LEVELS
FUSE
LO
CLEAN
EFX
LOOP
SENDSPEAKERSLINE OUT
HEADPHONE RETURN
6L6
EL34/6V6
OFF/FTSW
REVERB ON
OFF/FTSW
SOLO ON
OFF/FTSW
EFX ON
8 OHM
4 OHM
GROUND
LIFT
SPKR
ON
SPKR
OFF
CLOSED
BACK
CAB. SIM.
VINTAGE
BIAS
CabClone™
D.I.
MESA
FT.SW.
MIDI
THRU/OUT
MIDI
IN
MIDI
CHANNEL
STORE
OPEN
WARNING:
Replace fuse with same type/rating only.
Do not expose to rain or moisture.
CAUTION:
Risk of Electric Shock. Do Not Open.
No user serviceable parts inside.
®
ON
EL34
This device has been tested and
found to comply with the limits for
a Class B device pursuant to part
15 of the FCC rules. Operation is
subject to the following two
conditions: (1) This device may
not cause harmful interference,
and (2) this device must accept
any interference received,
including interference that may
cause undesired operation.
SWITCH MUST MATCH
TUBES IN USE
120 V~
60 Hz
2 A
2 A
SLO
BLO
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
AMPLIFIER
44YV
PAGE 11
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