• 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.

Tango XE-20S Specification

mono_plate,

About your Tango XE-20S their spec go to 1000volts max at 80mA

So at 800/900 Volts you are safe.

Good diy.

Alain.
Hi Alain,

I am thinking of using the tango XE-20S for a project that has ~830V on the transformer and about 70mA bias, Couldn't find any data on whether XE-20S can handle 800V long term or what is the safe max voltage.

Just wondering where did you find the specs that say it goes up to 1000V?

Also is this refering to the ISO-TANGO XE-20S or the orignal Tango-Hirata XE-20S

thank you so much
Nick
 
Hello Nick,

Sorry but I have no time to dig in my old paper documentations... (and may be I did lost some moving back to France from Canada )
but as Peter Millet using one with 800Volts to 900Volts power supply... I am still confident with the old TANGO XE-20S

http://www.pmillett.com/813_se_triode_amps.htm

The Japanese Tango were built with > 1000volts insulation. Peter won't build such a high voltage amplifier and worry about the possible failure of the output transformer.

If you want to buy a new version, better ask the company!

Take care,
Alain.