A 1.5V one vacuum tube guitar, bass, synth preamplifier

See the previous post on the Pleiades V1:


http://euroelectron.blogspot.com/2018/07/a-one-tube-microphone-headamp-operating.html


Operates with just an AAA battery.


Much of the tube character can be had quickly as the anode supply rail is only 1.5 volt.