The Sontec EQ is a nice great and outstanding Equalizer with history. The Original Idea and Design was made by Burgess MacNeal and George Massenburg for the first parametric Equalizers. You can find a nice retrospective here on the Universal Audio Website.

We ordered the PCBs from Igor in December 2012.

A good help is the Sontec Building Thread at DIY Group Forum

Our stores where Reichelt.de, Mouser, Alphastat, Segor Berlin

Empty Power Supply for Sontec EQ

Empty Power Supply for Sontec EQ

Arrived Sontec PCBs from Igor

Arrived Sontec PCBs from Igor

start soldering…

Sontec Inputboard 1

the first Resistor is safe.

We can’t find any 55K Resistor at Reichelt.de, so we had to build a 55K Resistor based on a 49.9K and a 5.10K Resistor.

Making a 55K Resistor

making a 55K Resistor based on a 49.9K and a5.10K Resistor

55K Resistor for the Sontec Filter Board

the final 55K Resistor for the Sontec Filter Board

Finished 55K Resistor on Signal Board

Finished 55K Resistor on Signal Board

Resistors on Sontec Signal Board 2

Resistors on Signal Board

Resistors on Signalboard

Resistors on Signal Board in detail

Evy at soldering Resistors

Evy at soldering Resistors

One of our girlfriends wants to solder too, so we showed her how to do it.

Evy wants to soldering to

Evy presents her work. She’s proud of it. =)

Evy presents the Inputboard

Evy presents the Input Board

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