Atomic AT-1A User manual
Specifications
•Operatesanywherein the world from110-
250VAC
• Supplied withcountry-appropriateIECmains
powercable and 4pedal leads
• 4x12VDC isolated outputs@ 1250mA
completelyeliminatesearthloops
•One ofthe outputscan be configured topower
9VDC centernegativepedals
• Shortcircuit/overload protection protectsyour
tube pedals
• Powerrequirements:110 –240VACIEC3pin
connector
• Dimensions: width7.5"; depth4.8";height 1.5"
•Weight: 1lb14oz(on Earth)
• Construction: Solid die-cast aluminumbox
• Finish:titanium-silverpowdercoat
Serial #
Copyright ©2011EffectrodeAudiophilePedals
ISOLATEDPOWERSUPPLY
Owner’sManual
12 BroughtonCrescent,Barlaston,
Staffs,UK.ST12 9DB
www.effectrode.com
AT-1A
Introduction
Thankyou forpurchasing the AtomicIsolated Power
Supply model AT-1A.The AT-1Aisspecially
designed tomeetthe demanding power
requirementsofourtube effectspedals.Properly
designed tube pedalsrequiremuchmorepower
than solid-stateeffectsbecauseofthe tube heaters
and high voltage operation.Togetan idea,takea
lookatthe sizeofthe transformers inside atypical
vintage tube amp.The Atomicgeneratesenough
ampstopowerup to4ofourminiaturetriode tube
pedalswithout compromising tone quality.
Thankyou fortrusting Effectrode tobe youreffects
pedal company.Wewishyou manyyears of musical
enjoyment fromthisveryspecial, hand-built unit.
Phil Taylor–Designer
Notes
When installing the Atomic,ensureadequate
ventilation around the enclosureand do notobscure
the ventilation holes. Effectrode miniaturetube pedals
typicallydraw justover1amp(1000mA) eachwhen
theyhavewarmed up and thisunitwill alsogetwarm
when poweringseveral pedals.Onpowerup,the
LEDson the frontpanel will flashforafew seconds
while the tube heaters warm up.Currentdraw is
higherfortube pedalsduring initial start-up conditions,
asthe heaterfilamentresistanceislowerwhen they
arecold.As the filamentwarms up,the resistance
increasesand the tube heaters begin toglow orange.
It typicallytakesafew secondsorthistohappen and
afurtherfew secondsisrequired forthe heaterto
begin warming the cathode tothe required
temperature.
And finally,herearethe jumpersettingsfor9Vcenter
positivepedals.
Setups
The Atomic powering four Effectrode tube pedals.
The first poweroutputcan be used topower9Vcenter
negativepedalsin adaisy-chain asshown below. Configuration
The Atomic can be configured topower9Vcenter
negativeorcenterpositivepedalsusing internal jumpers.
Toaccessthe jumpers firstmakesurethe unitis
disconnected frommainspoweroutlet.Removethe six
screwson the baseofthe pedal and removethe
baseplate.The Atomic shipsin standardconfiguration of
12Vcenterpositiveasshown in the figurebelow.
Toconfigurefor9Vcenternegativepedalssetthe
jumpers asshown below
