Chapter Two: Using Your Einstein; Mains Connections, Power And Standby; Mains/Connect To Power Outlet; Power Up, Warm Up, Standby Off - Diezel Einstein Owner's Manual

Chapter Two: Using Your Einstein

2.1 Mains Connections, Power and Standby

2.1.1 Mains/Connection to Power Outlet
Please make sure that both switches (Power and Standby) are in the off position before
connecting to the mains circuit. Verify line voltage before connecting the power cord. Never start
Einstein without connecting speakers to the proper terminals. (See 3.2.5)

2.1.2 Power up, Warm up, Standby off

First, turn the Power switch to on (facing up). The indicator light will turn on. This starts the
tube heating process. After about 40 seconds, the tubes should be sufficiently heated for normal
operation. Your Einstein is then ready for operation and the standby switch can be turned to
"run" (also facing up). Premature activation of the standby switch will lead to unnecessary tube
stress and subsequent reduction of the power tube's life span.

2.1.3 Power Tube Caution

Tubes are electronic components that function only with vacuum intact and under very high
operating temperatures. Each tube has one or more heating filaments, much like a light bulb.
These filaments heat up the anode of the tube. If you switch the standby switch to the "run"
position before these anodes have reached their operating temperature (when the anode surfaces
are not heated evenly), this causes undue stress to the tubes and their related components inside
the amp. Always give the amp its much needed warm-up time, even if musical inspiration hits
you with a full force.

2.1.4 Operating Temperature

It will take a little more time after warm-up until everything inside the amp is working in sync
and to its fullest potential. A trained ear will notice a slightly warmer tone and better complexity
in tone after playing the amp for a short while. It's like stretching before exercising.
2.1.5 Power Tube Life
The power tubes of your amplifier are subjected to a certain aging process. Once signs of
aging, such as unreliability or unusual noise, are detected, we suggest that you replace all power
tubes at once. Matched tube sets age relatively evenly, so our experience suggests. This means
that if one goes, the others are not far from meeting the same fate. The aging process manifests
itself by a depletion of a thin layer of wolfram on the anodes. This can take anywhere from 6
month to 3 years, depending on the amount of use of the amplifier.