the 3 home build amplifiers:
bottom right : Hiraga 2 x 25 watts class A transistor amplifier used with the bass loudspeakers, that amplifier was described in " LÌAudiophile " ;

bottom left : " Minor Swing "(*) 2 x 0.8 watts amplifier using a single triode WE437 per channel, OPT 25 watts AudioNote or Tamura F-475. This amplifier feeds the tweeters ;

top left : " Shabda " (*)2 x 19 watts SE amplifier. This amplifier is entirely original. It is directly coupled. Input stage is based on a ECC808 triode loaded by a cascode constant current source followed by a BUZ80A mosfet used as source follower driving directly the screen of the output tube (tetrod 4Y75R) the grid of which is grounded. OPT is the excellent Tango FX50-3,5S

top right : supply of the Shabda amplifier, the HV unregulated supply (500V) uses a CLC structure total capacitors = 5500 microfarads. The silvered cylinders are 100microfarads 630 volts SCR polypropylen capacitors, 11 of them are used in the supply.

(*) Nota bene : I like to give names to the amplifiers I design and build by myself. " Shabda " and " Minor Swing " are examples of that.