DIY - Hybrid Headphone Amplifier

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DIY - Hybrid Headphone Amplifier

Wire connections to be made between
the PCB and the tubes "19j6".

19J6 selling tubes on EBAY: whipcitytubes,
fair prices, good products, moderate shipping costs.

For sale at Aliexpress:
Potentiometer knob Mcintosh 23 x 16 mm, excellent product.

TEK active control module for stereo VU meter of in "AUDIOPHONIC"

An embodiment according to the website of Pete Millett:
"The Starving Student" hybrid headphone amplifier

A very good site that I recommend, a gold mine! and the following boards: diyforums

DOWNLOADS (pdf)

the list of components (website Pete Millett)
the diagram (website Pete Millett)
the printed circuit
clear Polyester
19J6 notice (website nj7p)

SPECIFIC ASPECTS

A"McIntosh" look, for screen printing it is especially easy to achieve! Power Integration 48 volts CISCO mark in the cabinet with the cut-off switch, the power circuit is removed from the plastic housing in order to connect the mains terminals.
Power protection in a small metal housing.
Realization of a circuit board.
Added 2 VU meters and its corresponding circuit.
Adding a transformer 230v / 12V 3 Va to power the circuit level meters. Set against-plated 0.31 inch covered with aluminum sheet 0.019 inch thick glued to the contact cement and painted black. Frame made of galvanized steel sheet of 0,078 inch thick. Front: realization of a screen printing on transparent polyester placed between two sheets of polycarbonate.

The Starving Student hybrid: Good dynamic, powerful, pleasant and detailed soundstage. A little surprising amp! No breath, no background noise and enough room in the box for adding a
USB port in the future to add to it a digital/analog quality.