Overview:

This project/web page is intended to be an online source
of documentation for an electronics course project.
The project being built is a guitar amplifier.
The design specifications of the amplifier follow.

+ "Combo" type amplifier
+ Vacuum tube output stage
   - 12AT7 Phase Inverter (DATA P1, P2, P3, P4)
   - 7591 output tubes (DATA P1, P2, P3, P4, P5)
   - Fisher 500-C output transformer
+ Solid state power supply
   - Unknown mfr recycled power transformer
   - Full wave bridge rectifier B+
   - Adjustable bias negative voltage supply
+ User selectable hybrid input stage:
   - Front panel switch - internal relay
   - 2 channel input:
      + Fender type tube preamp stage
         - 12AX7 gain stage (DATA P1, P2, P3, P4, P5)
         - Vol, Bass, Mid, Tre eq, Bright switch
      + Vox-style solid state preamp stage
         - Solid state
         - Modeled using JFETs after VOX Top Boost circuit
         - Gain, Vol, Bass, Tre
+ Transducers:
   - 2 vintage 12" Pyle brand speakers
     originally from Califone speaker boxes