Enlightening!
Worth further investigation... it's a single SIT transistor amp and the four glasswares are light-bulbs, used as resistors in circuit, NOT tubes!
Pass is now designing power amps based on the new SIT (static-induction transistor), a variation of the JFET (junction field-effect transistor) and MOSFET (metal-oxide semiconductor field-effect transistor) fabricated from silicon carbide. Originally developed for radar applications, the SIT turns out to be ideal for audio amplification, providing the closest thing to triode-tube characteristics without the vacuum.
Pass is now designing power amps based on the new SIT (static-induction transistor), a variation of the JFET (junction field-effect transistor) and MOSFET (metal-oxide semiconductor field-effect transistor) fabricated from silicon carbide. Originally developed for radar applications, the SIT turns out to be ideal for audio amplification, providing the closest thing to triode-tube characteristics without the vacuum.
some reading :
ReplyDeletehttp://www.firstwatt.com/pdf/art_sit_nemesis.pdf
http://www.firstwatt.com/articles.html
Zen Mod