Tefi Vintage Lab JOE BUFFER User manual

Te Vintage Lab is pleased to welcome you to our family. We hope you
enjoy using our new Buffer&Splitter Joe Buffer. Feel free to get in
touch for any suggestions or clarications as to how you might best
use the effect. Play music and enjoy using our products!
Joe Buffer - Buffer & Splitter
No footswitch and a minimal circuit for maximum sonic transparen-
cy. Joe Buffer is a class-A discrete component buffer; it uses J-Fet and
BJT semiconductors and features two outputs for signal splitting ope-
rations. It can be placed anywhere in the effects chain, according to
needs:
At the beginning of the effect chain• , to prevent degradation in to
prevent degradation in the signal path caused by long connection
cables between the guitar and effects chain effects or amplier.
At the end of the chain• or before amps and effects with low input
impedance, such as vintage effects like the Binson Echorec (the
input impedance of a Binson Echorec is 47kohm, the correct loa-
ding impedance of a guitar or passive bass is generally more than
500kohm), or in many vintage ampliers. Joe Buffer is essential in
direct recording of the instrument; use it before audio interfaces
or mixing consoles (generally 10kohm standard line input impe-
dance) to prevent signal loss and frequency cut. Thanks to its high
input impedance and wideband response, Joe Buffer eliminates
any attenuation or degradation of the guitar’s harmonic contents
caused by mismatched impedance adapting.
As a signal splitter• , to drive without signal quality loss two am-
pliers/effects chain at the same time, or to connect a guitar tuner
not equipped with True Bypass signal switching.
JOE BUFFER Operating Manualwww.tevintagelab.it
Dimensions
Maximum output level
Signal switching
Power connection/ground
Battery type
Output impedance
Minimum load impedance with
attenuation < 0.5dB
Power supply/
Power consumption
5 kOhm on each output
9Vdc/approx. 90mW (I-max
assorbed: 10mA @ 9Vcc )
Chassis
Weight
Input impedance
110x55x35mm
2.5Vpeak
True bypass
Negative tip/negative ground
+9V (6LF22)
220 Ohm on each output
Die-cast aluminum
200gr (without battery)
1.3 MOhm
TECHNICAL SPECIFICATIONS

CONNECTION AND USE
• Connectingtoinstrumentandamplier/gear: connect your instrument
(or gear effects chain) to the Input jack on the pedal’s right side with a
6.3mm Jack instrument cable. Connect the output jack on the pedal’s left
side to an amplier (or to the next effects in your chain) with a 6.3mm Jack
instrument cable.
• Battery: to access the battery compartment, remove the four screws on
the bottom cover. Connect the 9V battery (6LF22 type) to the battery clip
connector. Do not reverse the polarity! Insert the battery into the compart-
ment located in the bottom area of the enclosure. Be careful not to damage
the wires and/or the battery clip. To preserve battery life disconnect the
instrument cable from the pedal Input jack when the pedal is not in use.
• Powersupply: connect a 9V stabilized external power supply adapter to
the pedal’s power connector located on the right side (5.5mm connector
with 2.1mm pole type). Do not reverse polarity! (external positive, inter-
nal negative). In the presence of reversed polarity the pedal will not power
up; no damage will be caused below 25V reversed polarity.
CONTROLS AND FUNCTIONS
The Buffer is an essential element that should be present in every guitar ef-
fects chain. Its function is to “decouple” and “follow” the guitar signal, without
introducing any level of amplication, making the signal source (instrument)
independent of any following elements. To achieve this in the best way, Joe
Buffer has a very high input impedance (1.3Mohm) and a very low output
impedance (220ohm), with the ability to drive low-load impedance (down to
5kohm) without distortion or signal loss. High-input impedance leaves the
original harmonic content of the instrument unaltered. Low output impedan-
ce, in conjunction with high-capability drive, allows a “push-in” of the signal
spectrum in at the following stage, regardless of input characteristics. Without
using a buffer, pedalboards with numerous effects and long instrument cables
will suffer from signal drops and degradation in harmonic content may occour.
Joe Buffer is designed for maximum sonic transparency; it will not introduce
any undesired harmonics and allows the original sound of the instrument to
shine through, avoiding harmonic and level losses due to long cable parasitic
capacitance or impedance mismatching between effect pedals.
Curiosity: The grandpas Joe Buffer and Gegè Fuzz don’t get along very well;
Fuzz pedals work on the direct interaction between a guitar’s pickups and the
non-linear low input impedance that is typical of the Fuzz effect. Placing Joe
Buffer between a guitar and a germanium Fuzz will change this impedance
interaction causing a “normal”, common acid distortion. This is because the
input of Gegè Fuzz will “recognize” the low output impedance of Joe Buffer and
not the mid/variable-frequency impedance of the guitar’s pickup.
TEFI Vintage Lab invites you to activate the warranty within 10 days of the purchase of the product. It is necessary to connect to our website www.tevintagelab.it and, on the page concerning your product, ll in the reuqired elds in the “register product” sec-
tion. TEFI Vintage Lab products are covered by 5-year warranty. If the user nds an anomaly due to component defects and erroneous assembly, please contact us by sending an email to info@tevintagelab.it, describing in detail the problem encountered and the
circumstances in which it was veried.
In compliance with the regulations dened in the following clauses, TEFI Vintage Lab undertakes to restore the instrument with no additional costs.
Warrantly is valid for 5 years. Does not include parts subject to wear such as jacks, switches, potentiometers, dip-switches, 9V battery clip or 9V battery holder, nor does include aesthetic parts such as knobs.1.
Warrantly does not extend to damages causated by inexperience or negligence in the use of the effect pedal, or bad/neglected maintenance.2.
TEFI Vintage Lab undertakes to replace at its own discretion the malfunctioning or incorrect manufacturing parts, only after a careful check and verication of bad construction.3.
In case of incorrect use of the warranty, shipping costs are charged to the user.4.
During the warranty period, the replaced products become property of the manufacturer.5.
This warranty can only be obtained from the original purchaser who has complied to the normal maintenance instructions contained on this manual. Our warranty liability expires at the moment the original owner surrenders ownership of the product, or 6.
changes are being made to it.
Warranty does not include damage caused by excessive stress, such as the use of the product after the detection of an anomaly, the use of inappropriate methods of operation, as well as the failure to observe use and maintenance instructions.7.
The manufacturer assures no responsibility for any difculties that may arise in resale or use abroad due to the provisions in force in the country where the product was sold.8.
The product part of the defective one must be delivered to TEFI Vintage Lab for replacement, otherwise the replaced part will be charged to the buyer.9.
Any product repair or modication by the user or by companies not authorized by TEFI Vintage Lab will invalidate the warranty.10.
EU DIRECTIVE AND DISPOSAL
TEFI Vintage Lab products are designed compliant to the standards dened by EU directives, respecting safety and the environment. Pursuant to Legislative Decree No. 49 of March 14, 2004 “Implementation of Directive 2012/19/EU on
waste electrical and electronic equipment (RAEE)”.
The crossed-bin symbol indicates that the product, at the end of its useful life, must be separately collected from other waste.
The user must therefore confer the equipment with the essential components at the end of their life to the appropriate collection centers for electrical and electronic waste.