Ramsey Electronics PG13 Manual de instrucciones descargar pdf (Pagina 15)

RV-1 • 15

[ ] 64. Install U4, the chip marked 386 (8 pin dip). Pay close attention to it's

orientation and where pin 1 is. This is the audio amplifier chip, and is

used in many of the Ramsey kits.

[ ] 65. Install C17, a .01uF ceramic capacitor (marked .01, 10nF, or 103).

[ ] 66. Install C14, a 220uF to 470uF electrolytic capacitor. This value isn't

entirely critical, but it prevents the power amp from causing the circuit

to oscillate from its current draw on the battery. If you use a power

supply with this kit, the value doesn't need to be so large.

[ ] 67. Install J5, the power jack. Be sure and solder the connections

securely so that it is mechanically secure to the board.

[ ] 68. Install a 4” piece of insulated connecting wire between the holes

marked +Bat.

[ ] 69. Install a 4” piece of insulated connecting wire between the holes

marked -Bat.

Congratulations! you have just finished the assembly of your RV1 kit. All that

needs to be done is to install jumpers to choose what mode of operation you

desire. First choose what you want your inputs to be, you have a choice of a

microphone, or line levels from a stereo or mono source (such as tape or

VCR outputs). Next you choose what sort of output you want. You have two

choices on the right channel, the first being a speaker, and the other is for

line level output. The left channel has a choice between line level and

microphone outputs. Don't worry about what configuration you want,

because it's easy to go back later and change it.

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Ramsey Electronics PG13 Manual de instrucciones Pagina 15