Dual Head
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MATROX G450 AGP HEAD DUAL MONITOR 256bit VIDEO CARD
$13.99 |
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NVIDIA QUADRO 64MB PCI-E VIDEO CARD DUAL HEAD MONITOR
$14.99 |
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NVIDIA QUADRO NVS 64MB DUAL HEAD MONITOR AGP VIDEO CARD
$14.99 |
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MATROX G450 AGP HEAD DUAL MONITOR 256-bit VIDEO CARD
$13.99 |
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MATROX G450 AGP HEAD DUAL MONITOR 256-bit VIDEO CARD
$13.99 |
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MATROX G400 Dual Head VGA Video Card 32MB AGP Firewire
$5.99 |
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Matrox G450 32MB Dual-Head AGP Video Card |CRD13380
$8.95 |
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Matrox 618-02 Rev: A Dual Head MGA-MYST/2BI Video Card
$40.00 |
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Matrox 708-04 Rev A MilleniumII Dual Head 4M Video Card
$37.95 |
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NVIDIA QUADRO 64MB DUAL HEAD MONITOR PCI-E VIDEO CARD
$14.99 |
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NVIDIA QUADRO NVS 64MB DUAL HEAD MONITOR AGP VIDEO CARD
$14.99 |
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Matrox MGI P65-MDDA8X64 64mb AGP dual head video card
$15.00 |
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NVIDIA QUADRO NVS 64MB DUAL HEAD MONITOR AGP VIDEO CARD
$14.99 |
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MATROX G450 AGP HEAD DUAL MONITOR 256bit VIDEO CARD
$13.99 |
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Matrox Dual Head AGP 32MB Graphic Card G45FMDHA32DB
$29.95 |
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ATI Radeon 7000 AGP 32MB DDR Dual Head Low Profile Card
$16.00 |
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MATROX G450 AGP HEAD DUAL MONITOR 256bit VIDEO CARD
$13.99 |
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NVIDIA QUADRO 64MB DUAL HEAD MONITOR PCI-E VIDEO CARD
$14.99 |
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NVIDIA QUADRO NVS 64MB DUAL HEAD MONITOR AGP VIDEO CARD
$14.99 |
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MATROX G450 AGP HEAD DUAL MONITOR 256-bit VIDEO CARD
$13.99 |
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ATI Radeon X2400 PCIe 256MB Dual-Head Video Card (New)
$24.99 |
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Apple PowerMac G4 GF2 MX 32MB AGP Dual Head 600-9144
$5.00 |
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ATI Radeon 7000 64MB DDR PCI Dual VGA Heads Video Card
$32.88 |
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MATROX G450 AGP HEAD DUAL MONITOR 256-bit VIDEO CARD
$13.99 |
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NVIDIA 128MB Dual Head DVI Video Card
$39.99 |
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ATI Radeon 7000 64MB DDR PCI Video Card Dual VGA Heads
$25.56 |
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NVIDIA QUADRO 64MB DUAL HEAD MONITOR PCI-E VIDEO CARD
$14.99 |
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NVIDIA QUADRO NVS 64MB DUAL HEAD MONITOR AGP VIDEO CARD
$14.99 |
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MATROX G450 AGP HEAD DUAL MONITOR 256bit VIDEO CARD
$13.99 |
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NVIDIA QUADRO NVS 64MB DUAL HEAD MONITOR AGP VIDEO CARD
$14.99 |
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2x HP P2062-69501 5065-8954 Dual Head VGA Video Card
$12.95 |
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Dell Matrox G450 Dual Head 32MB AGP Card 608UX
$22.00 |
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MATROX G450 AGP HEAD DUAL MONITOR 256bit VIDEO CARD
$13.99 |
|
NVIDIA QUADRO 64MB DUAL HEAD MONITOR PCI-E VIDEO CARD
$14.99 |
|
NVIDIA QUADRO NVS 64MB DUAL HEAD MONITOR AGP VIDEO CARD
$14.99 |
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MATROX G450 AGP HEAD DUAL MONITOR 256-bit VIDEO CARD
$13.99 |
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Used ATI FireMV 2200 64mb PCI W/dual head cable
$19.99 |
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Matrox Millennium G450 32MB Dual Head PCI Video Card,
$122.66 |
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V.CARD AGP 32MG MATRO G550 DUAL HEAD OEM
$39.00 |
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NVIDIA QUADRO 64MB PCI-E VIDEO CARD DUAL HEAD MONITOR
$14.99 |
what is a dual head stethoscope, and what are the purposes of each side? thanks everyone!?
Dual-sided (aka dual head) stethoscopes enable simultaneous amplification or attenuation of certain critical physiological sounds, by alternation between the two differently-shaped and differently-sized sound collecting areas. The “bell” side is not more or less suitable for pediatric use than the diaphragm side. A true high fidelity acoustic stethoscope obviates the need for a separate pediatric stethoscope in family practice, however certain psychological factors may dictate a preference for smaller stethoscope heads, rather than objective acoustic factors alone. The “diaphragm side” is generally more sensitive to respiratory sounds than the “bell side”. High fidelity, dual-sided stethoscopes have greater sensitivity to all frequencies on both sides, than single-sided
