Download Print this page

Effectrode LA-1A Owner's Manual

Leveling amplifier

Enlarged version

S p e c i f i c a t i o n s

• Input impedance: Greater than 1MΩ

• Output impedance: Less than 1KΩ

• Controls: Peak Reduction, Gain, Boost, Attack and

Knee

• Features: Dynamic tube equaliser , active tube

boost and tube buffered output circuitry

• All tube: Super low-noise parallel tube input stage

(four tube sections) operating in class-A

• Photo-optical: Ultra-linear , low distortion photo-

resistive attenuator (fast attack time < 1ms)

• True bypass: With 'anti-pop' foot-switching circuitry

• Power requirements: 12VDC @ 1A centre positive

• Dimensions: width 7.5" depth 4.8" height 1.3"

• Weight: 2lb ( on Earth); ¼lb ( on Callisto )

• Construction: Solid die-cast aluminum box

• Finish: Tough light-grey powder coat

LA-1A

Serial #

Thermionic

Owner's Manual

12 Br o ugh t on C re sc ent, B arla s t on,

St af fs , En glan d. S T12 9DB

ww w. ef fe ct r od e. co m

Table of Contents

Need help?

Do you have a question about the LA-1A and is the answer not in the manual?

Page 2 T u b e s The Effectrode LA-1A Leveling Amplifier was The 12AU7 and 12A T7 tubes in the LA-1A can be designed with one purpose in mind: to enable artists swapped with equivalent miniature 9-pin double and engineers extract every last nuance from a triode tubes from other manufacturers –...
Page 3 – this is useful when soloing on guitar or bass and can push the input stage of a Side-Chain Circuit the LA-1A is based on ‘feed- tube amp into overdrive very nicely too. The ‘Boost’...
Page 4 ‘Twin Reverb’ Amp tremolo/reverb dual latching compression kicks in. The ‘Knee’ knob alters the input/output curve, i.e. how the LA-1A transitions into footswitch), to be utilised for remote bypass compression – rotate clockwise and the LA-1A switching and activating the tube boost.