Pacosipulami Overdrive Mini

[Pacosipulami]

A new child is born! The "Pacosipulami Overdrive Mini" - a single overdriven channel, 6Watt all tube head based on a very famous amp and made out of an old Fender Champ AA764 chassis


[img:640:425]https://dl.dropboxusercontent.com/u/100 ... SC2974.jpg[/img]

The holes for the pots were not perfectly placed - unfortunately, I got no "licence to drill"

[img:640:425]https://dl.dropboxusercontent.com/u/100 ... SC2975.jpg[/img]

[img:425:640]https://dl.dropboxusercontent.com/u/100 ... SC2976.jpg[/img]

Audio-clips and details will following soon.....

Cheers
Pacosipulami

[mhartman]

Nice looking build. Can't wait to hear it.

[Pacosipulami]

some slight changes in the circuit made! Yeah!! Now this baby rocks! No noise, no hiss, no hum - just tone!!! Clips comin' soon....

[Pacosipulami]

[img1080]https://dl.dropboxusercontent.com/u/100 ... st0781.JPG[/img]

clips following soon (as I got them, made by spectators at the german axe fest 2014). You can play any note and let it ring for minutes

[Pacosipulami]

Now together with the Pacosipulami "Silence Speaker", a compact reactive loadbox....(just a prototype)

[img:640:480]https://dl.dropboxusercontent.com/u/100 ... peaker.jpg[/img]

into the AxeFx II (used as speaker simulation and reverb fx processor)

here is a clip: https://dl.dropboxusercontent.com/u/100 ... odmini.mp3

...imagine the sound of the "Pacosipulami Overdrive Mini" amp on a real speaker cabinet! (still - comin' soon)

[10thTx]

Very impressive amp tone!! Thanks for sharing it.

Any chance that you could share a schematic, please?

I've posted a DRAFT unproven design. How close is your amp to this?

With respect, 10thtx

[10thTx]

Any chance that you have some sound clips without the AXE FX II ?

With respect, 10thtx

[Pacosipulami]

How close is your amp to this?

same amount of tubes, different circuit It's basically a high plate "Non-HRM" ODS design with some own ideas regarding filter/tonestack circuit adjustments to my personal taste.

Funny, there is a slight similarity, a post gain filter pot - After the first tests with the design pictured above (featuring a Overdrive, Level and Mastervolume Knob, where you can see a 10pF MV treble cap), I had too much mid/high frequency content, so I ended up with a simple Hi-Cut filter in post gain position instead of the Level control, but after the mastervolume (a 250k audio taper pot with a 2.2nF cap to ground). Also changed the NFB to 22k, going straight to cathode tap of V2b

[Pacosipulami]

Any chance that you have some sound clips without the AXE FX II ?

With respect, 10thtx

The AF2 only does the cabinet simulation and reverb in the clip above, since I can't make loud noises in my rental apartment .....

that's why I build myself a reactive loadbox, so the complex frequency-dependent saturation behavior of the output stage still remains "almost the same"

There are real-cab clips made at the german axe-fest two weeks ago, where I introduced the Overdrive Mini - they comin soon (as I'll receive them...).

Greetings
Pacosipulami