Product Description
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.
You can purchase them pre-cut for horizontal or vertical mounted power transformers. If you have the tools and skillset, you can easily cut the "vertical" version to fit a horizontal transformer.
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 (sold separately)
- 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
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
