Tefi Vintage Lab JOE BUFFER Operating Manual

TECHNICAL SPECIFICATIONS

Dimensions
Weight
Chassis
Input impedance
Output impedance
Minimum load impedance with
attenuation < 0.5dB
Maximum output level
Signal switching
Power supply/
Power consumption
Power connection/ground
Battery type
www.tefivintagelab.it
Tefi 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 clarifications 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
prevent degradation in the signal path caused by long connection
cables between the guitar and effects chain effects or amplifier.
• At the end of the chain
or before amps and effects with low input
110x55x35mm
200gr (without battery)
Die-cast aluminum
1.3 MOhm
220 Ohm on each output
5 kOhm on each output
2.5Vpeak
True bypass
9Vdc/approx. 90mW (I-max
assorbed: 10mA @ 9Vcc )
Negative tip/negative ground
+9V (6LF22)
, to prevent degradation in to
JOE BUFFER Operating Manual
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 amplifiers. 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-
plifiers/effects chain at the same time, or to connect a guitar tuner
not equipped with True Bypass signal switching.