• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

300B mesh plate, 2,5 Volt Heater


diyAudio Senior Member
2002-08-21 1:20 am
Hello Reinhard,

Are you absolutely sure they're made in China ?
I thought these were made in Tchekia but I'm not 100% sure.
The idea is not new but was reintroduced by Alesa Vaic (former Tesla engineer)
see also:http://www.jacmusic.com/emissionlabs/index.htm
> guess you'll even be more confused afterwards <

From what I understand they're all individually branded for their respective distributors.