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DYNACO Dynakit ST35 User Manual

DYNACO Dynakit ST35
17 pages
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STEREO
35
POWER
AMPLIFIER
INSTRUCTIONS
FOR
ASSEMBLY
OPERATION
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PATENTED
SERIAL
NUMBER
This
number
must
be
men-
tioned
in all
communications
concerning
this
equipment.
Price $1.00
929014
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Ny
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3060
JeHersan
St.,
Phila"~I~hia,
Pa.
19121
U.S.A.
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Question and Answer IconNeed help?

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DYNACO Dynakit ST35 Specifications

General IconGeneral
TypeStereo Tube Amplifier
Input Impedance470k ohms
Weight18 lbs
Frequency Response20Hz to 20kHz
Total Harmonic DistortionLess than 1%
Output Impedance4, 8, and 16 ohms
Input Sensitivity0.5V
Tube Complement2 x 12AX7
Power Output17.5 watts per channel RMS

Summary

SPECIFICATIONS

DESCRIPTION

GENERAL WIRING PRACTICE

Making a Good Solder Connection

Outlines the four essential steps for creating a secure solder joint.

Making a Mechanical Connection

Explains how to bend wire ends for a secure mechanical connection.

MECHANICAL ASSEMBLY

Mounting Circuit Boards and Sockets

Instructions for installing circuit boards and input/tube sockets onto the chassis.

Mounting Transformers and Filter Capacitor

Guidance for securing the power and output transformers and filter capacitor.

WIRING INSTRUCTIONS - Power Transformer

Wiring Power Transformer Connections

Connects various leads from the main power transformer to the chassis and tube sockets.

Wiring Left Output Transformer

Details the connections for the left channel output transformer to the circuit board.

WIRING INSTRUCTIONS - Output Transformers

Wiring Left Output Transformer (Continued)

Completes the wiring for the left channel output transformer to the terminal strip.

Wiring Right Output Transformer

Connects the right channel output transformer leads to the circuit board and terminal strip.

WIRING INSTRUCTIONS - Component Connections

Resistor and Filter Capacitor Connections

Connects resistors and associated wiring to the filter capacitor.

Wiring to Filter Capacitor and Terminals

Connects wires from filter capacitor chassis lugs to terminal strips.

Diodes, Input Sockets, and Circuit Board Wiring

Details connections for rectifier diodes, input sockets, and various circuit board eyelets.

LEFT Circuit Board Wiring

Specific wiring steps for the left channel circuit board.

WIRING INSTRUCTIONS - Final Steps

Special Instructions for 120-240V Transformers

Guides for wiring optional power transformers for different voltage inputs.

INSTALLING THE STEREO 35 - System Setup

INSTALLING THE STEREO 35 - Connections

Connecting Loudspeakers and Phasing

Details loudspeaker impedance matching and correct phasing for stereo.

Listening with Stereo Headphones

How to connect headphones to the amplifier.

Connecting a Third Loudspeaker

Method for adding a central loudspeaker to a stereo system.

IN CASE OF TROUBLE - Initial Checks

Troubleshooting Filament and Tube Issues

Addresses problems related to tube filament glow and lighting.

Troubleshooting Sound and Hum Issues

Diagnosing absence of sound, hum, or noise in the amplifier.

IN CASE OF TROUBLE - Detailed Diagnosis

Hum and Noise Diagnosis

Specific steps to diagnose and resolve hum and noise problems.

Troubleshooting Filament Glow

Explains how to identify faulty tubes or circuitry causing abnormal filament glow.

Voltage Chart and Short Circuit Checks

Using the voltage chart for diagnosis and checking for short circuits.

FACTORY SERVICE AND WARRANTY

Warranty Information

Details the warranty period for parts and tubes, and return procedures.

Factory Service Policy

Information on paid service for assembled kits and warranty exclusions.

Shipping for Service

Guidelines for securely packing and shipping the amplifier for factory service.

Parts List

SCHEMATIC DIAGRAM - Left Channel

Voltage Chart (Left Channel)

Provides voltage readings for various points in the left channel circuit.

SCHEMATIC DIAGRAM - Right Channel

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