THE BULLSHOOTER ENDLESS LOOP VOICE RECORDER Ramsey Electronics Model No. BS1 Announcing an event is now easier than ever! Just say it once and hear it over and over. Easy transmitter hookup for broadcasting. • Compact design stores up to 8 full minutes of audio. • Provides endless looping playback of any message…FOREVER !! • Add a transmitter for error free broadcasting of repetitive announcements.
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Ramsey Publication No. MBS-1 Price $5.00 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR THE BULLSHOOTER ENDLESS LOOP VOICE RECORDER TABLE OF CONTENTS Introduction .............................................4 Circuit Description ..................................5 BS1 Parts List .........................................6 Parts Layout Diagram .............................8 Assembly Procedure ..............................9 Schematic Diagram ..............................10 Initial Testing and Operation..........
INTRODUCTION Each of us at one time or another has probably heard an endless loop player repeating a list of movies playing at the local theatre, or advertising a house for sale through your car radio. Sure could be handy around the house occasionally, or maybe down at the local flea market. Could you modify a cassette or CD player to duplicate this function? Good luck! Where could you even find that sort of machine anyway, and how much would it cost? Enter the BS1 Bullshooter.
BS1 CIRCUIT DESCRIPTION In the BS1, as in all electronic devices, specific power and voltage requirements exist. Although appearing quite simple at a glance, the power supply of this unit provides three separate outputs (+12V unregulated, +5V, and +3V regulated.) The +12V comes from an external source such as battery or wall adapter and is filtered or “smoothed” by capacitor C21. D4 is a reverse polarity protection diode which acts as a switch for the applied voltage.
PARTS SUPPLIED WITH BS1 VOICE RECORDER KIT Capacitors 1 .0047 µF or .005 µF disc capacitor (marked 472, .005, or 502) [C4] 1 .002 µF or .0022 µF disc capacitor (marked .002, 202 or 222) [C10] 3 .01 µF disc capacitors (marked .01, 103, or 10 nF) [C14,C16,C17] 4 .1 µF disc capacitors (marked .
1 BS1 printed circuit board Required, not supplied 12 Volt DC power transformer Optional Line level audio source (such as a tape deck or CD player) Shielded stereo audio cables Speaker Case and Knob Parts Top Cover Bottom Base Tray 4 - Short Phillips Head Screws 2 - Long Phillips Screws Front and Rear Plastic Panels Front and Rear Labels 4 - Rubber Feet Appropriate Knobs for Kit Required Tools Pen or Pencil Sharp hobby knife or hand held paper punch Small Phillips Head Scre
BS1 PARTS LAYOUT DIAGRAM BS-1 • 8
RAMSEY "LEARN-AS-YOU-BUILD" ASSEMBLY STRATEGY As you can see in examining the circuit board and components, there is a bit more to this voice recorder kit than just soldering a few parts. So that you don't spend extra time "troubleshooting" instead of enjoying your new kit, we strongly recommend that you follow the assembly strategy and step-by-step procedures we provide. Our strategy in installing parts on our PC board is to install the larger and more obvious parts such as the connectors and controls.
BS-1 • 10
BS-1 • 11
Since you may appreciate some “warm-up” soldering practice as well as a chance to put some “landmarks” on the PC board, we’ll first install some of the larger components. Have a look at the Parts Layout Diagram to help with your assembly. 1. Install S2, the Power DPDT horizontal push-button switch. It fits correctly only one way. Ensure that the white plastic switch extends out over the edge of the printed circuit board. Solder all six pins. 2. Install S1, the Record DPDT horizontal push-button switch.
As we head into the smaller components, remember to push each lead all the way through the board until the component body rests on the board. 12. Install C8, 10 µF electrolytic capacitor. Electrolytic capacitors are polarized with a (+) and (-) lead and must be installed in the correct orientation. Ordinarily, only the negative side of the capacitor is marked (typically with a stripe and the (-) sign clearly shown,) while the PC board will show only the (+) hole location.
OK, we’re halfway there. Let’s take care of the audio inputs next. Have you been following the assembly with the schematic diagram? 30. Install R1, 10K ohm resistor (brown-black-orange). 31. Install R2, 1K ohm potentiometer (3 legs, marked 102). 32. Install R4, 1K ohm resistor (brown-black-red). 33. Install C6, 10 µF electrolytic capacitor. Check orientation. 34. Install R8, 10K ohm resistor (brown-black-orange). 35. Install J2, 3 pin header strip with jumper block. 36. Install C9, .
48. Install R15, 1K ohm resistor (brown-black-red). 49. Install C14, .01 µF disc capacitor (marked .01 or 103 or 10nF). 50. Install C16, .01 µF disc capacitor (marked .01 or 103 or 10nF). 51. Install C18, 100 pF disc capacitor (marked 100 or 101). 52. Install C5, a .1 µF disc capacitor (marked 104 or .1) 53. Install C11, 1 µF electrolytic capacitor. Check orientation. 54. Install R16, 470 ohm resistor (yellow-violet-brown).
installed by reheating each solder pad while holding the cartridge in place. Once installed, you may want to touch-up each joint with a bit more solder to ensure a solid connection. 59. Check once again to be sure that the two leads do not touch the outer chrome case of the MIC1 and also that the case does not contact the circuit board. A short in this area will prevent the Microphone input from working. 60. Install R12, 10K ohm potentiometer (marked 10K). Solder all five points.
Recording Recording is possible from either the on-board microphone or external line input. The input choice is selected by jumper position of J2. To select the Microphone input, move the jumper to the “MIC IN” position as marked on the board. The “LINE IN” position selects recording from a Line Level input from an external source such as the Line Out of a cassette or CD player. To record a voice message: 1. Set J2 to the “MIC IN” position. 2. Power up the unit by pushing in the power button. 3.
To playback a message into a speaker: 1. Connect a speaker to the “Speaker Out” jack J4. 2. Power up the BS1. 3. Push the “Play” button S3. (The “Play” LED will illuminate.) To play a message into auxiliary equipment: 1. Connect the “Line Out” jacks J1 and J3 to the Line Level inputs on the desired equipment. 2. Power up the BS1. 3. Push the “Play” button S3. (The “Play” LED will illuminate.) TROUBLESHOOTING Won’t record from Microphone and/or Line In. 1. Check for proper positioning of jumper block on J2.
The Ramsey Kit Warranty Please read carefully BEFORE calling or writing in about your kit. Most problems can be solved without contacting the factory. Notice that this is not a "fine print" warranty. We want you to understand your rights and ours too! All Ramsey kits will work if assembled properly. The very fact that your kit includes this new manual is your assurance that a team of knowledgeable people have field-tested several "copies" of this kit straight from the Ramsey Inventory.
Endless Loop Voice Recorder Kit Quick Reference Page Guide Introduction ..................................... 4 Circuit Description ............................ 5 BS-1 Parts List ................................. 6 Parts Layout Diagram ...................... 8 Assembly Procedure ........................ 9 Schematic Diagram .......................... 10 Initial Testing and Operation ............ 16 Troubleshooting ............................... 18 Warranty...........................................
