Ramsey Electronics DN1 manual Power Supply Considerations, Throttle UP

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Charger Status

Status LED “ON” time

Status LED “OFF” time

 

 

 

 

No Battery

No Light

No Light

 

 

 

 

Battery Connected

1/8 sec.

1/8 sec.

Awaiting Command

 

 

 

Discharging

1 3/8 sec

1/8 sec.

 

 

 

 

 

Fast Charging

Continuous

N/A

 

 

 

 

Charge Complete

1/8 sec.

1/8 sec.`

 

 

 

 

Topping Off

1/8 sec.

1/8 sec.

indicator. By changing the ON / OFF times this LED becomes a charging status indicator! Use the following chart for an indication of what the doctor is telling you.

POWER SUPPLY CONSIDERATIONS

The power supply used for the Dr. NiCad can very greatly depending on how you set up your charger to work. While you may be able to “get away with” many different types of supplies, what's recommended is a regulated 12- 14VDC supply capable of supplying at least 1.5 Amps of current continuously. When using the doctor in the “field”, a 12 VDC car battery works well as a power source. Be sure to remember that the center pin of the input power connector, J3, should be connected to the positive ( + ) terminal of the supply and the outer connector is attached to the negative, or ( - ) terminal.

THROTTLE UP !

With all our configuring steps behind us, it’s time to use the doctor!

ˆ1. Connect the battery (or batteries) to be charged to the +V (red) and -V wires.

ˆ2. Connect the power input to the circuit.

ˆ3. Switch S3 to the “ON” position. The Status LED should come up in either the “Fast Charging” mode or “Awaiting Command” mode.

ˆ4. To cycle the batteries, depress pushbutton switch S2. The Status LED should display the discharging mode.

Once the batteries are discharging, Dr. NiCad will take it from there. The conditioner will first discharge the cells to about .9 - 1.0 Volts per cell and

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Contents Dr. NiCad Ramsey Transmitter Kits CHARGER/CONDITIONER Introduction Time VoltageDN1 Circuit Description DN1 DN1 Parts List DN1 Now, lets get building Ramsey Learn-As-You-Build KIT AssemblyDN1 Parts Finder Diagram DN1 LED NPN power type. When Switch Guide Pin Congratulations Doctor NiCad Battery Conditioner SetupCharge Jumper Charging DN1 Final Assembly InstructionsCharging Current Setup Safety Time OUT Configuration Setup Charging Jumpers Current UsedTesting Your Doctor NiCad Battery Conditioner / Charger Setting UP the SwitchesDN1 Charge Status LED Indicator Throttle UP Power Supply ConsiderationsWhat about those mystery batteries ? Battery WorkoutTroubleshooting Instructions Battery Repair ??Common Questions Ramsey Kit Warranty Total Solder Points Estimated Assembly TimeRequired Tools Additional Suggested Items

DN1 specifications

Ramsey Electronics DN1 is a versatile and compact digital audio transmitter that caters to a variety of audio transmission needs. It is designed for hobbyists, educators, and DIY enthusiasts looking to create their own wireless audio systems. The DN1 offers a reliable solution for transmitting audio signals over short distances without the clutter of wires.

One of the main features of the DN1 is its ability to transmit audio in the FM band, which provides clear sound quality and minimizes interference. The device operates at a frequency range of 88 to 108 MHz, allowing users to choose the optimal frequency for their specific environment. This adaptability makes it suitable for applications like personal broadcasting, classrooms, or small events.

The DN1 is equipped with a simple-to-use interface, featuring adjustable audio input levels and an LED indicator for power and modulation status. It supports both mono and stereo audio inputs, making it a flexible option for various audio sources. Users can connect the transmitter to devices such as audio players, microphones, or computers, which allows for seamless integration into existing setups.

Another significant characteristic of the DN1 is its compact and lightweight design, making it easy to transport and mount in different locations. Its robust construction ensures durability, making it ideal for both indoor and outdoor use. This makes the DN1 an excellent choice for users who need a portable solution for DIY projects or presentations.

The device operates on a low-power consumption model, which is not only environmentally friendly but also cost-effective. It can be powered by a standard 9V battery or an external power supply, adding to its convenience and versatility.

In terms of performance, the DN1 boasts a transmission range of several hundred feet in optimal conditions, ensuring that audio signals remain strong and consistent even in larger areas. This range, combined with its ease of use, makes it an appealing option for those looking to broadcast audio without the limitations of wired connections.

Overall, Ramsey Electronics DN1 stands out as an innovative transmitter that brings together user-friendly features, excellent audio quality, and practical design. Whether for personal use, educational purposes, or event hosting, the DN1 meets the demands of modern audio transmission needs, allowing users to experiment and expand their audio capabilities with ease.
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