ChappellAmps News:

10.01.28 - New October Studio Amp! The October Studio has been redesigned using the new custom Heyboer iron.  Options for a second output tube and an FX Loop are also available.

10.01.28 - New Custom Studio Transformer Sets All Studio kits are now shipping with custom Heyboer Iron for no additional cost.

The new power transformer is designed for 120V mains and has a secondary output of 275-0-275 @ 65mA.  The output voltage was increased to supply the higher B+ levels needed by designs such as the Lead II preamp.  The current capacity of the filament winding is 3.5A and has a center tap.  It's no longer necessary to create a virtual center tap, and more preamp stages, tube FX Loops, tube reverbs, etc. can accomodated.

The output transformer now has 23K and 11.5K primary taps so that two dual triodes can be used in the amp.  The core material has been changed for better, and tighter bass response for the new high-gain builds.

The new custom choke was designed for the utmost in filtering preformance and can be used, in the Studio builds in either a choke-input or capacitor input design.  It can also be used in bigger power amps (20W and above), as long as B+ levels are not greater than 500V and the current demand is 65mA or less.

09.01.08 - New 4-4-0 Sound Clips have been posted on the 4-4-0 page hereMany thanks to Jon Anderson, Alan Olson, Tom Northfield,  and  Steve Tourison for allowing me to showcase their considerable talent as well as the 4-4-0 amp.

09.01.06 - New October Sound Clips have been posted on the October page here.  They are down at the bottom of the page in the Studio and Club columns.  Many thanks to Jon Anderson and Chris Hurley for allowing me to showcase their considerable talent as well as the October amp.

Turret Boards

If you need a turret board for any of the AX84 projects, or any of my projects, just send me an email.  Some of them I try and keep in stock, but I can make, and ship any of them in a couple of days.

Links

Links to sites that I have found useful.


Amplifiers

Guitar Amplifier projects that I have created, or helped create are hosted on this page.

        The October

        The 4-4-0

        The Comanchero

        The Plexible



Gallery

Examples of amplifiers and cabinets that I've built over the years.