ChappellAmps.com
Guitar Amplifier Projects
The October Series 
Standard Features:
- Two preamp channels that are internally jumpered. One channel is voiced normally, and the other is voiced brighter.
- Each channel has it's own volume control so that the outputs of both channels can be mixed together. This gives the player a wide range of tones from which to choose.
- Vintage/Modern switch. In the Vintage mode, the preamp is voiced with a more open and looser tone like amps of the 60's and early 70's. In the Modern mode, the amp has brighter and tighter tone like amps of the late 70's and 80's.
October ~ Studio
The October Studio has been designed for home and studio use. This amp produces 2 - 5 watts of power and is built with the same care and quality parts as it two larger siblings. It is intended for players who want the tone and feel of a full sized amplifier without the ear crushing volume that normally comes along with them.- Two 12AX7 preamp tubes
- One 12AY7 phase-inverter
- One, or two 6SN7GTB twin-triode power tubes
- One EZ81 rectifier tube
October ~ Studio Sound Clips:
Thanks to Jon Anderson for all of the October sound clips here on this page and to Chris Hurley for the video clip of the original October Club prototype.
October ~ Stage
The October Stage is intended for use in larger clubs where the 20W version isn't quite powerful enough. This amp produces about 50 watts of power. And, by simply swapping the output tubes with those of the Club, the power out can be reduced to 20W.- Two 12AX7 preamp tubes
- One 12AX7 phase-inverter
- Two KT77 output tubes
- One GZ34 rectifier tube
I'm sorry, but I don't have any clips of this beast. I only built three of these and I no longer have them.
October ~ Club
The October Club has been designed for use in small clubs where a mid-power amp is required. This amp produces about 20 watts of power and, with an efficent speaker cab loaded with quality speakers, can get quite loud. As with all our products, it is built with care and quality parts.- Two 12AX7 preamp tubes
- One 12AX7 phase-inverter
- Two 6V6S output tubes
- One GZ34 rectifier tube
October ~ Club A/V Clip:
(This is a ".avi" clip so you will need a DivX plugin. One for Windows Media Player can be found here.)And, just to prove that the October has the tone that made the plexi amps famous...