DR7T Full Spec

DR7T Full Spec

DR7T TFZ is the top, full spec variant of the iconic Paul Hynes SR7 line of audiophile Linear Power Supplies independently made under license by DR7T.com

Previously “Unobtainium” ….

now available !

Hand built, under license, to the exacting specifications, same PCB, same electronic components choices and the renowned PR3 discrete regulator circuit of Paul Hynes.

** Full Spec DR7T is made with PTFE pcbs, and over 25 Vishay Z-foil resistors.**

** DR7T on FR4 epoxy pcbs with high precision resistors are also available. **

The DR7T are now available in the following formats:

  • DIY regulator modules for those who wish to build their own LPS.

And will soon be available as:

  • 1 or 2 rail LPS in our custom 2 rail chassis.

  • 1-4 rail LPS in our bigger custom 4 rail chassis

DR7T.com is a separate and distinct entity from Paul Hynes or Paul Hynes Design. Aside from the License, there are no other business connections.

If you wish us to contact you to discuss your requirements, please sign up below or send us an email ar info@DR7T.com .

Why a DR7T Linear Power supply?

Built with the renowned Paul Hynes PR3 discrete regulator circuit :

  • Extreme precision current source sets the output voltage

  • Ultra low noise, high speed, wide bandwidth buffer provides up to 10A continuous current and an transient currents of up to 40-50A

  • SR7T PSRR: -80dB, DC to 100 kHz

  • DR7T PSRR: -150dB, DC to 100 kHz

Voltage regulator Error amplifier specifications : 

  • Noise voltage < 0.5 nanovolts root Hz

  • Operating Bandwidth > 300 Mhz

  • Supply line rejection > 80 dB DC to 100 KHz

  • Output impedance < 3 milliohms DC to 100 KHz

  • Transient response and settling time < 100 nanoseconds