Tube DIY Asylum

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tube taster

Posted by RayP on July 9, 2017 at 04:21:17:
I posted this link about the multi-type tube line stage a while ago but I think it is still relevant.

The switch arrangement satisfies most of your requirements except for volume. All of the tubes are warmed up and operating with current flowing through them that is reasonably appropriate for the tube type. The switching can be accomplished in two seconds. The rest of the listening chain (source, amp, speakers, cables) remains the same.

If I could notice differences between different tubes in a line stage then I should notice differences between amps, which I do.

As my write-up points out, switching quickly between different tubes didn't work well for me. I found it was preferable to take my time to make comparisons. The style of music also made a difference to my preferences.

ray