DYNACO PAT-4 Manuel d'assemblage - Page 3

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DYNACO PAT-4 Manuel d'assemblage

Section 1: About This Manual

This manual gives the information you need to build and install the various upgrades to
the Dynaco PAT-4 Preamp. As of this writing, the following PAT-4 upgrades are
available from Updatemydynaco, a division of Akitika LLC:
 Blue Light Kit (not covered in this manual)
 Line Amp Distortion Reducer
 Tone Control Switch
The Line Amp Distortion Reducer drops the distortion of the Line Amp by a factor of
ten. The Line Amp is the stage that includes the volume and tone controls. All sound
from the preamp passes through the Line Amp. This upgrade should make everything
played through the PAT-4 sound better.
The Tone Control Switch replaces the existing Hi Filter switch with a two position rotary
switch. In the OFF position, the tone controls are disabled. In the 15 position, tone
controls maintain their normal function. After this modification, the other two positions
of the HI FILTER switch (10 and 7) are not available. You can install optional resistors
(not provided) that drop the Line Amp gain when the tone controls are off. This drops the
gain of the Line Amp, increasing Signal to Noise Ratio.
These upgrades can be installed in any combination.

Who Should Attempt these Projects?

You can build this kit if you can:
1. solder (using normal rosin core solder and a soldering iron).
2. use simple hand tools like screwdrivers, wire cutters, and pliers.
3. read and follow directions.
It helps if you:
1. know a bit about electronics, or
2. have a friend who knows a bit about electronics
3. can get to YouTube to watch a few helpful videos about the assembly process (not
available as of this version of the manual)

Tools You'll Need

You'll need the following tools:
1. flat blade screwdriver for #6 screws
2. needle nose pliers (helpful, but not strictly necessary)
3. pencil type soldering iron of 25 to 50 Watts (no huge honking soldering guns or
blowtorches)
4. wire cutters and strippers
5. Magnifying glass, if you're over 42!
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