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  • 7.5 MHz 5-pole Bessel low pass filter in blue-green metal housing — angled front-left view showing BNC input connector and label on top 7.5 MHz Bessel low pass filter — IN side panel with panel-mount BNC female input connector and mounting flanges

    7.5 MHz 5-Pole Bessel Low Pass Filter 50 Ohm BNC In/Out Housed RF Signal

    Bessel

    $28.00
    Was: $60.00
    7.5 MHz 5-Pole Bessel Low Pass Filter 50 Ohm BNC In/Out Housed RF SignalThis is a 5-pole Bessel low pass filter with a 7.5 MHz cutoff frequency, designed for RF signal conditioning in 50-ohm systems...
    33017
    SKU:
    33017
    Availability:
    Usually ships within 1–2 business days.
    Weight:
    3.00 LBS
    Brand:
    Unbranded
    Model:
    7.5 MHz 5-Pole Bessel Low Pass Filter
    Type:
    Low Pass Filter
    Filter Type:
    Bessel
    Number of Poles:
    5
    Cutoff Frequency:
    7.5 MHz
    Impedance:
    50 Ohms
    Connector Type:
    BNC
    Input Connector:
    BNC Female
    Output Connector:
    BNC Female
    Filter Response:
    Bessel (Maximally Flat Group Delay)
    Pass Type:
    Low Pass
    Form Factor:
    Housed / Benchtop Module
    Housing:
    Metal enclosure with mounting flanges
    SKU:
    33017
    Condition:
    Used – Inspected
    Seller Notes:
    Filter only — no additional cables or accessories included.
    Condition Notes:
    This 7.5 MHz 5-pole Bessel low pass filter has been inspected and is in good used condition. Housing shows light scuffing; BNC connectors are clean and intact. Label is present and legible.
    $28.00
    Was: $60.00
  • Fisherbrand SureOne pipette tips — open cardboard box showing 30 sealed bags of yellow tips Fisherbrand SureOne pipette tips — angled view of open box with one bag pulled forward showing yellow tips inside

    Fisherbrand SureOne Beveled Graduated Pipette Tips 1-200uL Yellow Box 1500

    Fisherbrand

    $45.00
    Was: $90.00
    Fisherbrand SureOne Beveled Graduated Pipette Tips 1-200uL Yellow Box 1500Sterile pipette tips designed for use with micropipettes in the 1-200 microliter range. Beveled tip geometry and graduated...
    13214
    SKU:
    13214
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    2.00 LBS
    Brand:
    Fisherbrand
    Model:
    SureOne
    MPN:
    SureOne Beveled Graduated Pipette Tips
    Type:
    Pipette Tips
    SKU:
    13214
    Volume Range:
    1-200 µL
    Color:
    Yellow
    Tip Style:
    Beveled
    Graduations:
    Yes — graduated for visual volume identification
    Quantity:
    1500 tips (30 bags of 50)
    Packaging:
    Individually bagged in bags of 50, packed in box
    Compatible With:
    Various micropipette brands incl. Hamilton Softbrand
    Material:
    Polypropylene
    Sterility:
    Non-sterile (bulk packed)
    Country/Region of Manufacture:
    United States
    Seller Notes:
    New tips in sealed bags of 50; 30 bags totaling 1500 tips in one box
    Condition Notes:
    Fisherbrand SureOne Pipette Tips 1-200uL — new and unused. 1500 tips in 30 sealed bags of 50. All bags intact, no use or wear. Please contact us with any questions.
    $45.00
    Was: $90.00
  • Guzik 8021 Programmable Filter PCB 301920 — top-side view showing full board with blue trim pots, ICs, and header connectors Guzik 8021 Programmable Filter board — close-up of end showing 'PROGRAMMABLE FILTER 1.5–8MHz' silkscreen label, multi-pin edge connector, and Assy No. 301920 marking

    Guzik 8021 Programmable Filter PCB Board Assy 301920 1.5-8MHz HDD Servo

    Guzik

    $65.00
    Was: $125.00
    Guzik 8021 Programmable Filter PCB Board Assy 301920 1.5-8MHz HDD ServoThe Guzik 8021 is a programmable filter PCB assembly used in Guzik disk drive test and servo analysis equipment. Carrying...
    42734
    SKU:
    42734
    Availability:
    Usually ships within 1–2 business days.
    Weight:
    1.00 LBS
    Brand:
    Guzik
    Model:
    8021
    MPN:
    301920
    Secondary Model:
    Assy No. 301920
    Type:
    Programmable Filter PCB Assembly
    SKU:
    42734
    Frequency Range:
    1.5–8 MHz
    Main IC / Chipset:
    Motorola LF444CN (quad JFET op-amp)
    Form Factor:
    PCB / Card Module
    Interface / Connector:
    Multi-pin edge/header connectors
    Application:
    Disk drive servo channel / HDD test equipment
    PCB Date Code:
    1991 (copyright mark visible on PCB)
    Condition:
    Used – Inspected, Good Condition
    Seller Notes:
    Bare PCB assembly — no enclosure. Board only as shown.
    Country/Region of Manufacture:
    United States
    Condition Notes:
    Guzik 8021 Programmable Filter PCB Assy 301920 inspected and in good condition. Board is clean, components intact, no visible damage. Sold as bare PCB only. Please contact us with any questions.
    $65.00
    Was: $125.00
  • South Bay Technology cutting saw cylinder set — all 4 stainless steel components shown together on white tray South Bay Technology large flanged stainless steel cylinder component — top-down view showing bolt-hole ring flange

    South Bay Technology Sectioning Cutting Saw Cylinder Set Components Lot of 4

    South Bay Technology

    $75.00
    Was: $150.00
    South Bay Technology Sectioning Cutting Saw Cylinder Set Components Lot of 4Stainless steel cylinder components for South Bay Technology sectioning and cutting saws used in materials science sample...
    27236
    SKU:
    27236
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    24.00 LBS
    Brand:
    South Bay Technology
    Model:
    Cylinder Set Components
    Type:
    Sectioning & Cutting Saw Cylinder Components
    SKU:
    27236
    Condition:
    Used – Inspected and in Good Condition
    Seller Notes:
    Lot of 4 stainless steel cylinder components for sectioning/cutting saw
    Material:
    Stainless Steel
    Quantity:
    4 pieces
    Application:
    Materials science sample preparation, sectioning saw
    Compatible With:
    South Bay Technology sectioning and cutting saws
    Country/Region of Manufacture:
    United States
    Condition Notes:
    South Bay Technology cutting saw cylinder set (lot of 4 stainless steel components) inspected and in good condition. Light surface wear consistent with use. No cracks or damage visible.
    $75.00
    Was: $150.00
  • Barnes-Desenberg Model 5 Curve Generator full left-side view on pallet with accessory cabinet at left Barnes-Desenberg Model 5 Optical Lens Curve Generator right-side three-quarter view showing motor and control cabinet

    Barnes-Desenberg Model 5 Curve Generator Optical Lens Polishing Machine 3/4 HP

    Barnes Desenberg

    $3,000.00
    Was: $6,000.00
    Barnes-Desenberg Model 5 Curve Generator Optical Lens Polishing Machine 3/4 HP 3PhFloor-standing optical lens curve generator and polishing machine designed for precision grinding and polishing of...
    43696
    SKU:
    43696
    Availability:
    Usually ships within 5–7 business days; freight shipment — contact us for a shipping quote.
    Weight:
    4,000.00 LBS
    Brand:
    Barnes-Desenberg
    Model:
    Model No. 5
    MPN:
    Model No. 5
    Type:
    Optical Lens Curve Generator / Polishing Machine
    SKU:
    43696
    Seller Notes:
    Includes side accessory cabinet with 6 tooling/lap trays and tooling
    Country/Region of Manufacture:
    United States
    Form Factor:
    Floor Standing / Freestanding
    Motor Type:
    AC Induction Motor (Master Electric Co.)
    Motor Frame:
    7415WW
    Motor Type Code:
    PA
    Horsepower:
    3/4 HP
    Voltage:
    208-220-440V
    Phase:
    3-Phase
    Amperage:
    2.2 / 1.1 A
    Frequency:
    50/60 Hz
    RPM:
    3450 / 2350
    Motor Manufacturer:
    Master Electric Co., Dayton, OH, USA
    Transformer Brand:
    Jeffries Transformer, Los Angeles, CA
    Transformer Cat No:
    256-310-1
    Transformer KVA:
    0.250 KVA
    Transformer Phase:
    Single Phase
    Transformer Voltage:
    240/480 Primary — 120/240 Secondary
    Transformer Insulation Class:
    Class A
    Application:
    Optical Lens Curve Generation and Polishing
    Industry:
    Optical / Ophthalmic / Precision Optics Manufacturing
    Condition:
    Used – Pulled from Working Environment
    Condition Notes:
    Barnes-Desenberg Model 5 Optical Lens Curve Generator pulled from a working environment where it was in use and functional. Inspected and in good used condition.
    $3,000.00
    Was: $6,000.00
  • 6.5 MHz 5-pole Bessel low-pass filter in blue metal enclosure – top and front quarter view with label and BNC OUT connector visible Bessel low-pass filter – IN port end showing panel-mount BNC female connector labeled IN

    6.5 MHz 5-Pole Bessel Low Pass Filter 50 Ohm BNC In/Out Enclosure RF Signal

    Bessel

    $30.00
    Was: $60.00
    6.5 MHz 5-Pole Bessel Low Pass Filter 50 Ohm BNC In/Out Enclosure RF SignalThis is a 5-pole Bessel low-pass filter designed to attenuate frequencies above 6.5 MHz while passing lower frequencies with...
    32942
    SKU:
    32942
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    3.00 LBS
    Brand:
    Unbranded
    Model:
    6.5 MHz 5-Pole Bessel Low Pass Filter
    Type:
    Bessel Low Pass Filter
    SKU:
    32942
    Condition:
    Used – Inspected
    Filter Type:
    Bessel
    Response:
    Low Pass
    Cutoff Frequency:
    6.5 MHz
    Number of Poles:
    5
    Impedance:
    50 Ohm
    Connector Type:
    BNC (female panel-mount, IN and OUT)
    Form Factor:
    Enclosed / Benchtop
    Enclosure Material:
    Metal (blue painted aluminum)
    Seller Notes:
    Filter only; no additional accessories included.
    Condition Notes:
    This 6.5 MHz 5-pole Bessel low-pass filter has been inspected and is in good used condition. The enclosure shows light wear; both BNC connectors are clean and undamaged. Please contact us with any questions.
    $30.00
    Was: $60.00
  • CTI Cryogenics 8143143 helium compressor supply and return line pair shown together – full view of both bent stainless steel tubes with Aeroquip couplings CTI Cryogenics 8143143 cryo lines – close-up front view of Aeroquip 5400-S5-4 female and 5400-S2-4 male coupling ends showing internal seals and threaded fittings

    CTI Cryogenics 8143143 He Compressor Supply & Return Line Pair Aeroquip

    CTI Cryogenics

    $35.00
    Was: $70.00
    CTI Cryogenics 8143143 He Compressor Supply & Return Line Pair Aeroquip 5400-S5-4Matched pair of stainless steel rigid tubing lines for helium compressor systems. Supply line 8143143G001 measures 14"...
    20258
    SKU:
    20258
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    3.00 LBS
    Brand:
    CTI Cryogenics
    Model:
    8143143
    MPN:
    8143143
    Secondary Model:
    8143143G001 / 8143143G002
    Type:
    Helium Compressor Supply & Return Line Pair
    SKU:
    20258
    Condition:
    Used – Pulled from Working Environment
    Seller Notes:
    Includes one matched pair: supply line 8143143G001 (14") and return line 8143143G002 (14.5")
    Compatible With:
    CTI Cryogenics helium compressors and cryopump systems
    Coupling Type (Supply End):
    Aeroquip 5400-S5-4 Coupling Half – Female
    Coupling Type (Return End):
    Aeroquip 5400-S2-4 Coupling Half – Male
    Inlet Thread:
    1/2"-20 Thread
    Outlet Thread:
    5/8"-18 UNF Thread
    Hex Nut Size:
    0.75" (3/4") hex nut
    Pressure Rating:
    260 PSIG
    Supply Line Length:
    14" (approx. 19" tubing)
    Return Line Length:
    14.5" (approx. 19" tubing)
    Material:
    Stainless steel rigid tubing
    Application:
    Cryogenic helium compressor supply and return gas lines
    Country/Region of Manufacture:
    United States
    Condition Notes:
    CTI Cryogenics 8143143 He compressor supply & return line pair inspected and in good used condition. Pulled from a working cryo system. Aeroquip couplings intact. Normal service wear. Please contact us with any questions.
    $35.00
    Was: $70.00