Aural Ecstasy
The Tone You’ve Been Searching For
Five to 100 Watts; country, blues, rock, metal; We build the tube amp for you.
Head or combo; class A or AB; dozens of cabinet finishes & covering options.
Every Princeton Thermionic amplifier is built by hand and customized for one specific client. We don’t offer a “product line” of pre-made amps. Rather, we custom build your personal amplifier to achieve your particular musical goals.
Your Unique Sound, Your Custom Amp
Premium Components
We build your amplifier using the highest-quality components available, sourced from around the globe. Handmade circuitboards, soldered the old fashioned way. Hand assembled one at a time in our barn workshop. No assembly line.
Every Princeton Thermionic amp is made with our PureTubeTM circuitry.
You will never find a transistor in one of our amplifiers.
Previous Custom Builds
36 Watt “Ballbreaker”
2 channels, American & British
4 x EL84 Output Tubes
2 x CV4004 Preamp Tubes
1 x CV4004 Inverter Tube
Long-tailed Pair phase inverter
1 x GZ34 Rectifier
Treble, Middle, Bass controls
Half-power switch
1 x Celestion G12 Creamback
4 x inputs, jumperable
Baltic Birch Cabinet
Custom Racing Stripe Tolex
36W User’s Manual
20 Watt “Volcano”
1 channel, High-gain British
2x6V6GT Output Tubes
2 x CV4004 Preamp Tubes
1 x CV4004 Inverter Tube
Long-tailed Pair phase inverter
1 x GBU4M Rectifier
Treble, Middle, Bass controls
Variac emulation
1 x Celestion G12 EVH
1 x input, Hi-gain
Solid Pine Cabinet
Lava-Red Tolex
20W User’s Manual
18 Watt “Denim Deluxe”
2 channels, American & British
2 x EL84 Output Tubes
1 x 12AY7 Preamp Tube
1x 12DW7 Inverter Tube
Cathodyne phase inverter
1 x EZ81 Rectifier
Tweed-style Tone control
Custom speaker attenuator
1 x Jensen P12R Alnico
2 x inputs, American & British
Solid Poplar Cabinet
Custom Denim with pockets
18W User’s Manual
Now Accepting Production Requests
To reserve your amp on our production list,
email us: info@princetonthermionic.com.
Princeton Thermionic
We don’t ‘have’ a custom shop; we ARE a custom shop.
Princeton Thermionic
Heavenly Tone, Louder than Hell.
New Hope, Pennsylvania USA
info@princetonthermionic.com
Princeton Thermionic 