Pizzolato Amplifiers - Universal Chassis
Pizzolato Universal Tube Amp Chassis – the perfect starting point for your DIY amplifier journey.
Whether you're just getting into amp building or looking for a reliable platform to experiment with, this chassis is designed to make the process smooth and enjoyable.
Simple Setup, Big Possibilities
We’ve taken care of the tricky parts so you can focus on the fun:
Pre-drilled holes for all the common components—no guesswork needed.
Works for guitar, bass, hi-fi, and other audio projects.
Flexible layout lets you build a wide range of circuits without needing special tools.
Beginner-Friendly Features
Supports popular tube setups like:
Up to 4 small tubes (noval) + 2 larger tubes (power) + 1 rectifier
Or up to 5 small tubes + 2 larger tubes
Made from aluminum, so you can easily add or adjust holes if needed.
Specs at a Glance
Material: 2mm thick brushed aluminum
Size: 15.6" x 8" x 2.5" (396mm x 204mm x 62mm)
Weight: Chassis – 1.7 lb / Lid – 0.9 lb
📦 What’s in the Box?
Chassis lid
Lid screws
Optional horizonatl transformer kit also includes:
3 mounting plates
Extra screws and nuts
Add-Ons Available
Socket covers
Adapter plates for different tube types
Eyelet board with stand-offs
Custom laser-engraved control plates
📸 Photos show example layouts—your build can be totally unique!
List of direct drop-in Hammond Transformers
Power Transformers
Vertical Mount:
270DX
270DAX
272DX
272HX
273BX
370DX
370DAX
300P
Horizontal Mount:
290AX - Fender Bronco/Champ/Princeton Reverb
291AEX - Fender Bronco/Champ/Princeton Reverb
290BX - Deluxe/Deluxe Reverb
290CEZ - Vox AC15C1
290GX - Marshall JCM800/JMP 50W
290KX - Marshall JCM900/JCM2000 50W
290PX - Vox AC30
Output Transformers:
1650N
1650K
1750C
1750H
1750N
1760C
1760E
1760H
1760J
1760L
1750Y
125-Series
Chokes:
194A
194B
List of Holes
Front Panel
- 8 holes for jacks or potentiometers (3/8")
- 2 holes for switches (e.g. Carling - Fender Style) (1/2")
- 1 hole for Fender Style Pilot Lamp Holder
Back Panel
- 1 hole fore Switchcraft style voltage selector switch
- 1 hole for IEC Power Connector
- 3 holes for switches or fuse holders (1/2")
- 2 pilot* holes for tip jacks (bias check point)
* These can be enlarged and repurposed if needed - 1 hole for bias pot located in between the tip jack holes (3/8")
- 4 holes for jacks or potentiometers (3/8")
- 1 hole for panel mount Amphenol AC3 XLR connector**
** It may be necessary to enlarge a bit if other brands are used.
Top Panel
- 3 holes for 8-pin tube sockets (can be repurpose for capacitor cans or for 9-pin sockets using our 9-pin plates)
- 1 hole for big capacitor can (can be repurposed to 8-pin socket)
- 1 space with holes for small chokes or transformers
- 1 space with holes for power transformer (see list of direct drop-in)
- 1 space with holes for outout transformer (see list of direct drop-in)
- 4 holes for 9-pin tube sockets
- 5 holes to for stand-offs to secure eyelet or turret boards