Currently each unit of the PTE-101 is assembled by hand.

Because of this, each unit is uniquely made.

Each unit has design considerations that were made based on a number of factors including but not limited to availability of parts, design improvement ideas, etc.

Below you will find photos of all the models created so far. Feel free to reach out and request specific design features found in one of these units for your own unique PTE-101 or request new custom designs and features.


Accessories

Each PTE unit comes with:

12VDC wall adapter with
long 8 ft cord for easy use.

Korg CM-300 contact microphone (accelerometer) with solid contact clamp to improve signal and reduce feedback.


Each unit is shipped with a manual that includes step by step instructions on how to tune the temperament using a fourths/fifths sequence complete with what check notes to use and where to set the PTE for each step along the way.


When placing your order, please specify whether you want the black box model or the ivory/clear top model.

Black Box

Ivory/Clear Top


Model PTE-101.1      

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: Piggy back case
Case colour: Ivory/clear/black
Artwork: Hand drawn
Amp Pwr Sw.: Amps always on

This was the first working unit to be sold. It is basically the prototype that confirmed proof of concept.


Model PTE-101.2     

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: Piggy back case
Case colour: Ivory/clear/black
Artwork: Labels
Amp Pwr Sw.: Yes

This unit featured designed artwork, internal connections, modern volume knob, and a separate amp switch.


Model PTE-101.3     

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: Single case
Case colour: Ivory/clear top
Artwork: Labels
Amp Pwr Sw.: Amps always on.

This unit featured a single case design.


Model PTE-101.4     

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: One case
Case colour: Black
Artwork: Labels
Amp Pwr Sw.: Yes

This unit features a single black case design.


Model PTE-101.5.    

SOLD!
(Click the video)
Electronics: Analog
Basic filter: MFJ-751B
Design: One case
Case colour: Black
Artwork: Labels
Amp Pwr Sw.: Incorporated with filter power

This unit was purchased by Bosendorfer of Taiwan and features a headphone jack.


Model PTE-101.6

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: One case
Case colour: Ivory with clear top.
Artwork: Labels
Amp Pwr Sw.: Incorporated with filter power


Model PTE-101.7.    

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: One case
Case colour: Black
Artwork: Labels
Amp Pwr Sw.: Incorporated with filter power


Model PTE-101.8.

FOR SALE!

Electronics: Analog
Basic filter: MFJ-751B
Design: One case
Case colour: Black
Artwork: Labels
Amp Pwr Sw.: Incorporated with filter power


Model PTE-101.9

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: One case
Case colour: Ivory with clear top.
Artwork: Labels
Amp Pwr Sw.: Incorporated with filter power


Model PTE-101.10

SOLD!

Electronics: Analog
Basic filter: MFJ-751B
Design: One case
Case colour: Ivory with clear top.
Artwork: Labels
Amp Pwr Sw.: Incorporated with filter power


What's next? Why not get your own Piano Tuners Ear?