PowerTube™ Preamp
True to the Music
®
Radial Engineering Ltd.
Radial PowerTube
500 Series Tube Preamp
™
®
Table of Contents
Page
Overview.......................................................................................................................1
Features .......................................................................................................................2
Making Connections .....................................................................................................3
Getting Started .............................................................................................................4
Filters ............................................................................................................................5
Hidden Switches ...........................................................................................................6
Ominiport ......................................................................................................................7
Specifi cations ...............................................................................................................8
Block Diagram ..............................................................................................................8
Radial Limited Warranty ................................................................................Back Cover
Thank you for investing in a Radial PowerTube
microphone amplifi er. We are very excited
about this product and are confi dent that once you get it hooked up, the excitement will be
contagious! So get ready to enjoy one of the best sounding tube preamps ever made!
Before you start revving up this vacuum tube wonder, we kindly ask that you take a few
moments to read this manual and familiarize yourself with the many features that are built in.
For instance... did you know that there is a miniature switch inside that that enables you to
safely connect up to eight PowerTubes in a Workhorse without overtaxing the power supply?
How about the hidden ground lift switch that can accidentally turn phantom power off? This
is important stuff and well worth reading!
Then, after you are done, you will likely have some questions. To address these, we invite
you to visit the PowerTube FAQ page on our web site. This is where we post the latest news
and of course questions from users. If you do not fi nd the answers you need, we invite you to
send an email to [email protected] and we will do our very best to reply promptly.
Now get ready to tear up the airwaves with the sound of high voltage tube magic.