The PINT Headphone Amplifier
NOTE: The PINT was discontinued. You can read more about the situation here. There are no more boards, and there is no fixed date when its successor will be ready.
What is a PINT?
The PINT is a tiny circuit board for a heapdhone amplifier that fits neatly into a standard mint tin. It is the successor to the MINT Headphone Amplifier.
The circuit is much like the PIMETA's, only without the separate buffer stage (thus, no Jung multiloop) and using a fourth op-amp channel to drive input ground instead of a TLE2426. Another way you can look at it is as a CMoy pocket amp with a superior power supply design.
The PINT is specifically designed with high-current bipolar-input op-amps in mind. Popular choices are the AD8397, AD45048, NJM4580, NJM4556, LM6172, etc.
The PINT board features:
- Very small board size: 2.25" × 0.775" (57 mm × 20 mm)
- Accepts dual-channel SO-8 op-amps.
- Works from both a wall supply and batteries, with NiMH trickle
charging and reverse voltage protection
- The board makes using 2× series power sources easy. This is
ideal for 2×9V batteries or 2×AAA battery holders.
- Pads for the ALPS RK097 potentiometer with power switch
- Most parts on the board are surface mount
Why is it Called "PINT"?
- PIMETA Is Now Tiny
- PIMETA Inna Tin
- It's a pint-sized amp :)
Where To Next?
Interested in the PINT amp? Here are some pages you may want to visit next:
View the Layout: top and bottom
Building the PINT Amplifier:
Tangent's Parts Shop — Order boards and parts