simple circlotron

Does any one have a schematic for a circlotron amplifier using NPN power transistors in the 10 -15 watt region
Over my 50 odd year career in amplifier building I have tried most schematics but not this one
Not wanting Fets or exotic devices
Trev
 
Well I tried Iatala everything BUT what you want don't even remember that circuit using NPN power transistors and I have read just about every UK electronics magazine going back to the ,50,s .


WW has valve versions but I don't remember EW producing an NPN version but I stopped buying it around 2006 as the editor was changed and it went too commercial and over digital.
Used to have a good Letters page.


You could check out USA audio magazines of the past .