| Buffer and tone control amplifier | ||
|---|---|---|
| Component tube | Rectifier | MJ issue: |
| 211 | GZ37 | July 1993 |
| 845 / 845 | 5R4 | July 2000 |
| 845 | WE-422A | 2002 Book |
| 845 | WE-422A | 2002 Book |
| 845 | 5R4 | Feb. 2006 |
| KT-66 | GZ34 | Sep. 2009 |
| 845 | WE-422A | March 2008 |
| 841 (SV-572-3 : Bleeder tube) | 81 (X2) | March 2012 |
| 100TH (GM70 : Bleeder tube) | 5R4WGB | Nov. 2012 |
Phono preamplifier
Power amplifier
Two channels amplifier
Combination phono preamp-power amplifier
Buffer and tone control amplifier