
If hum and noise are present to any unusual degree, first remove the inputs plugs from the Stereo 35, and replace them with
Intermittent hum, noise or silence are usually the result
of a poor solder connection. If the trouble occurs in both channels, check the power supply first; if in one channel alone, examine the solder connections on that side.
Filament glow is normal, but if the plate (the large metal area) of a tube tends to glow red, either the tube or its associated circuitry is faulty. It all four of the output tubes glow in this manner, there is a short circuit in either the cathode (pin #3 of any 6BQ5) or filament (pin #4 and #5), or at lug '#4 of the filter capacitor.
The voltage chart printed alongside the schematic dia- gram may be helpful in
The Stereo 35 should never be operated with any of its tubes removed from their sockets.
FACTORY SERVICE AND WARRANTY
The Stereo 35 is designed to provide reliable, trouble- free performance for a long period of time. when properly assembled and installed. It is intended for use with the
All parts used in the Stereo 35 are guaranteed for a period of one year from the date of purchase except tubes, which carry the standard electronic industry (EIA)
If it is believed that a transformer is defective, it should be disconnected by unsoldering, never by cutting its leads so short that it cannot be
If the kit has been completely assembled, yet cannot be made to function properly, or if difficulty is apparent after a short period of use, we will service the kit for a fixed charge of $6.00, plus the cost of the parts which are outside the warranty or have been damaged by the user.
Factory assembled amplifier include a
IMPORTANT:
It is the factory prerogative to limit the service facility to one year from the date of purchase.
When shipping the amplifier to Dynaco, Inc., for service, attach a note specifying the symptoms, the name and address of the sender, and the serial number of the kits. The kit should be securely packed to withstand the abuses of handling in transit. It should be placed in a rugged car- ton surrounded by several inches of shredded paper or other soft packing material. The original kit carton is not
suitable for shipment of a wired amplifier.
Shipment should be made by prepaid EXPRESS, where possible, repaired kits will then be returned EXPRESS C:O:D: for freight and service charges (unless these charges have been prepaid). Parcel post is not a safe method for the shipment of assembled kits, and should not be used for this purpose.
The Dyna Company assumes no liability or responsibility for damages or injuries sustained in assembly or operation of this Dynakit.
STEREO 35 PART LIST
1 | Chassis set | 1 | HARDWARE | ||
| (chassis, cover and bottom plate) | 1 | Fuse | 4 | Rubber Feet |
1 | Power Transformer | 1 | Line Cord with Plug | 1 | ½" Grommet |
2 | Output Transformers | 2 | Input Sockets | 12 | 8/32 x ¼" Machines Screws |
4 | Output Tubes 6BQ5/EL84/7189 | 1 | Roll Hookup Wire | 12 | 8/32 Nuts |
2 | Driver Tubes 7247 | 2 | 12 | #B Lockwashers | |
2 | Rectifier Diodes 500 ma 1000 PIV (Silicon) |
|
| 25 | 4/40 x ¼" Machine Screws |
1 | Quadruple Section Filter Capacitor | RESISTORS | 25 | 4/40 Nuts | |
| 60/40/20 @450 v.; 100 @ 25v. | 25 | #4 Lockwashers | ||
|
|
| |||
2 | 1 | 50 ohms, 5 watts | 4 | #6 Sheet Metal Screws | |
1 | Fuse Holder with Rubber Washer and | 1 | 95 ohms, 5 watts | 1 | Instruction Manual with Pictorial Diagrams |
1 | Circular Nut | 1 | 6,800 ohms | 1 | Warranty Card |
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