Crate V33H User Manual
V33
Tube Guitar Amplifier
with Reverb
H
Owner’s Manual
V33H Tube Guitar Amplifier with Reverb
TABLE OF CONTENTS
Introduction ..........................................................................3
The Front Panel ....................................................................4
The Rear Panel .....................................................................5
Important Information About Tubes and Tube Products ............6
A Brief History of Tubes ..................................................6
Tube Types and Usage ....................................................6
The Nature of Tubes: Why (and When) to Replace Them ....7
The Importance of Proper Biasing ....................................8
Survival Tips for Tube Amplifiers ......................................9
Some Suggested Settings ...................................................10
System Block Diagram ........................................................11
Technical Specifications .......................................................12
Service Information .............................................................12
CAUTION
RISK OF ELECTRIC SHOCK
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR
MOISTURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
DO NOT OPEN
PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS
ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO A LA
LLUVIA O LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO.
NO ABRA LA CUBIERTA. NO HAY PIEZAS ADENTRO QUE EL USARIO PUEDO
REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS.
IMPORTANT SAFETY INSTRUCTIONS
•
READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS.
•
DO NOT OPERATE NEAR ANY HEAT SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS. FOR
PROPER OPERATION, THIS UNIT REQUIRES 3” (75mm) OF WELL VENTILATED SPACE AROUND HEATSINKS AND OTHER AIR
FLOW PROVISIONS IN THE CABINET.
•
DO NOT USE THIS APPARATUS NEAR SPLASHING, FALLING, SPRAYING, OR STANDING LIQUIDS.
•
CLEAN ONLY WITH LINT-FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS.
•
ONLY CONNECT POWER CORD TO A POLARIZED, SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRICAL CODES AND
COMPATIBLE WITH VOLTAGE, POWER, AND FREQUENCY REQUIREMENTS STATED ON THE REAR PANEL OF THE APPARATUS.
•
PROTECT THE POWER CORD FROM DAMAGE DUE TO BEING WALKED ON, PINCHED, OR STRAINED.
•
UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.
•
ONLY USE ATTACHMENTS, ACCESSORIES, STANDS, OR BRACKETS SPECIFIED BY THE MANUFACTURER FOR SAFE
OPERATION AND TO AVOID INJURY.
•
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
•
SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL.
•
OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND
PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS. USER CAUTION IS ADVISED AND EAR
PROTECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME.
• WARNING: THIS UNIT REQUIRES A SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRIC CODES HAVING THE
LINE SUPPLY VOLTAGE, POWER, AND FREQUENCY IDENTIFIED ON THE REAR OF THE UNIT. THE OUTLET MUST REMAIN
ACCESSIBLE TO DISCONNECT THE UNIT IF A FAULT SHOULD ARISE WHILE IN USE. THIS UNIT SHOULD BE UNPLUGGED WHEN
NOT IN USE.
PRECAUCION
RIESGO DE CORRIENTAZO
NO ABRA
ATTENTION
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
ATTENTION: PROTÉGEZ CET APPAREIL DE LA PLUIE ET DE L'HUMIDITÉ
AFIN D'ÉVITER TOUT RISQUE D'INCENDIE OU D'ÉLECTROCUTION. POUR
REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE
PIECE INTERNE N'EST REPRABLE PAR L'UTILISATEUR. POUR TOUTE
REPARATION, S'ADRESSER A UN TECHNICIEN QUALIFIE.
EXPLANATION OF GRAPHICAL SYMBOLS:
EXPLICACION DE SIMBOLOS GRAFICOS:
EXPLICATION DES SYMBÔLES GRAPHIQUES:
2
"DANGEROUS VOLTAGE"
=
“VOLTAJE PELIGROSO”
"DANGER HAUTE TENSION"
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
=
“ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.”
"REFERREZ-VOUS AU MANUAL D'UTILISATION"
Introduction
V33H Tube Guitar Amplifier with Reverb
Congratulations!
rugged amplifier packs a whole lot of vintage tube sound and classic spring reverb into its
compact cabinet, providing you with an amp that is portable and easy to operate, yet still produces incredible sounds!
The V-Series amps offer the versatility required for many different musical styles, and have the
unique tonal purity of a hot-rodded tube amp. The V33H is a two-channel amplifier with channel-switching between clean and overdrive sounds, gain and master volume controls, treble/
mid/bass tone controls, global boost and presence switches, and an inter
cranks out 33 watts from a set of four EL84 output tubes
Like all Crate products, your V33H amplifier is designed by musicians and built using only the
best components. Each amplifier is tested to confirm that it meets our specifications, and we
believe that this amplifier is the absolute best that it can be.
In order to get the most out of your new amplifier, please read this manual before you begin
playing.
Here are some of the features packed into your new V33H Guitar Amplifier:
• Four EL84 power vacuum tubes for smooth overdrive sound
You are now the proud owner of a Crate V33H tube guitar amplifier. This
nal spring reverb. It
.
And thank you for choosing Crate.
• Three 12AX7 preamplifier vacuum tubes
• 33 watts rms power output
• Two-channel operation (Clean and Overdrive)
• 3-band shared EQ
• Boost switch for increased midrange
• Proprietary Presence switch adds punch to the output
• Reverb control
• Effects loop
• Extension speaker output for connecting additional speakers
• Two-function footswitch option for remotely selecting Channel and Boost
3
The Front Panel
V33H Tube Guitar Amplifier with Reverb
INPUT
VOLUME GAIN TREBLELEVEL
456
3
2
1
010
456
3
7
8
9
CHANNEL
2
1
010
7
8
9
BOOST
456
3
2
1
010
7
9
8
456
3
2
1
010
MIDDLE
456
3
7
2
8
9
1
010
BASS REVERB
456
3
7
2
8
9
1
010
456
3
7
8
9
PRESENCE
2
1
010
7
8
9
1 3 42 5 6 7 9 10 11 12 138 14
1. INPUT: Use this jack to connect your
guitar to the amplifier using a shielded
instrument cable.
2. VOLUME: Use this to adjust the output
level of the Clean channel.
3. CHANNEL Select: Push in this switch
to activate the Overdrive channel. The
Clean channel is active when the switch
is in the out position.
4. GAIN: Use this to adjust the gain for
the Overdrive channel. With the control
turned counter-clockwise, the gain is
low and very little distortion is present.
As you rotate it clockwise, the gain
increases, producing more overdrive
distortion, and a higher output volume
10. PRESENCE: Push this switch in to
adjust the overall brightness and punch
of the output signal.
11. REVERB: Use this to adjust the amount
of reverb. Fully counter-clockwise is
“dry” (no reverb). Rotate clockwise to
increase the amount of reverb.
12. LAMP: This illuminates when the amplifier is turned on.
13. ON/STANDBY Switch: Use this switch
to activate the amplifier after the On/Off
switch (14) is turned on.
Always turn this switch OFF first, and
ON last! Turn the On/Off switch (14) on
at least 30 seconds before turning on
the standby switch.
level.
During short breaks, you should turn
5. BOOST: Push this switch in to boost
the output by 10 dB at 900 Hz. This
adds more punch to the midrange fre-
this switch off, and leave the On/Off
switch on. This will help prolong the life
of the amplifier tubes.
quencies.
14. ON/OFF SWITCH: Use this switch to
6. LEVEL: Use this to adjust the output
turn the amplifier on and off.
level of the Overdrive channel.
Always turn this switch ON first and OFF
7.
TREBLE: Use this to adjust the output
level of the high frequencies. The adjustment range is 12 dB at 6 kHz.
last! Turn the Standby switch (13) on at
least 30 seconds after turning on the
On/Off switch.
8. MIDDLE: Use this to adjust the output
level of the mid frequencies. The adjustment range is 10 dB at 1 kHz.
ONON
POWERSTANDBY
9. BASS: Use this to adjust the output
level of the low frequencies. The adjustment range is 8 dB at 150 Hz.
4
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