Todays deals on Glass Tube?

Brooks Instruments 1110 Glass Tube Full-View Flowmeter $371.66

8″ Optical Yag Laser round tube end w/ lens glass SVS $359.99

NOS National Electronic Tube # NL-643 Glass Power Tube $289.00

BROOKS Instrumentation 1358 SHO-RATE Glass Tube FlowMeter 1358E1B1DC2B1A NNB $179.99

BROOKS Instrumentation 1358 SHO-RATE Glass Tube FlowMeter 1358CB1C1CAS NNB $179.99

Brooks Instrument Glass Tube Variable Area Meter $169.99

12x 12V 24V SMD LED Light Tube Bar PURE WHITE FULL ALUMINUM GLASS BODY MARINE RV $148.75

Bussman Fuse Center No. 500 Glass Tube And Blade Type Assortment Cooper $129.99

AnalytikJena Glass U-Tube Manometer U-RHR 402-825 NEW $99.99

4E27 VHF PENDODE TX TUBE 125WATTS GLASS AIR COOLED $78.99

WALDMANN 305 226 060 RL70 GLASS TUBE 591MM/23.27″ ***NIB*** $89.00

Varian Ionization Glass Tube Gauge $93.00

Brooks Instrument Glass Tube Variable Area Meter 1.5″ $93.49

100m φ6mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Black $47.90

100m φ6mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $43.60

AMPERITE TIME DELAY RELAY GLASS TUBE 8PIN OCTAL 115NO60 NEW 115N060 $75.00

100 Buss Fuses BK/MDL-2 1/2 Time Delay 1/4 x 1 1/4″ Glass Tube Fuse NEW Bussmann $79.87

WALDMANN 305 226 020 RL70 GLASS TUBE FOR DWD ***NIB*** $69.00

100m φ5mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Black $40.80

100m φ5mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Yellow $40.80

100m φ5mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $37.00

Bussman Fuse Center No.200 Glass Tube Nd Blade Type Fuses Assortment Cooper $69.99

100m φ4mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Yellow $36.70

100m φ4mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Black $36.70

100m φ4.5mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $35.40

NL-806 Electron Tube 10178375 Cold Cathode Glass $50.00

MSA 804133 HALOGEN GAS DETECTOR GLASS TUBE (BOX OF 10) $50.00

100m φ4mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $33.40

100m φ3.5mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Yello $31.00

Glass Tube FP-1/4-25-5/448D015U02 $39.00

10sets (No.1~6) Polyvinyl Chloride Fiber Glass Sleeving 105℃L=1m Insulated Tube $27.70

lot 16 pcs Glass Testing Tube Size 40mm*200mm thickness 1.8mm $26.00

100m φ3.5mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $28.20

100m φ3mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Black $26.80

100m φ3mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Yellow $26.80

100m φ3mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $24.40

60+ Buss Fuses BK/MDL-2 1/2 Time Delay 1/4 x 1 1/4″ Glass Tube Fuse NEW Bussmann $44.87

50 NEW GLASS TUBE FUSE SLOW BLOW 3.15 AMP 250V $39.99

50 NEW GLASS TUBE FUSE SLOW BLOW 1.6 AMP 250V $39.99

50pcs NEW GLASS TUBE FUSE SLOW BLOW 1 AMP 250V $39.99

50 NEW GLASS TUBE FUSE FAST-ACTING 1 AMP 250V $39.99

50pcs NEW GLASS TUBE FUSE SLOW BLOW 800mA 250V $39.99

50pcs NEW GLASS TUBE FUSE SLOW BLOW 4 AMP 250V $39.99

50pcs NEW GLASS TUBE FUSE SLOW BLOW 630mA 250V $39.99

50pcs NEW GLASS TUBE FUSE FAST-ACTING 5AMP 250V $39.99

50pcs NEW GLASS TUBE FUSE FAST-ACTING 3.15AMP 250V $39.99

50 NEW GLASS TUBE FUSE FAST-ACTING 6.3AMP 250V $39.99

50 NEW GLASS TUBE FUSE FAST-ACTING 630mA 250V $39.99

50 NEW GLASS TUBE FUSE FAST-ACTING 2.5AMP 250V $39.99

50 NEW GLASS TUBE FUSE SLOW BLOW 2.5 AMP 250V $39.99

50 NEW GLASS TUBE FUSE FAST-ACTING 500mA 250V $39.99

50pcs NEW GLASS TUBE FUSE SLOW BLOW 1.25 AMP 250V $39.99

50pcs NEW GLASS TUBE FUSE SLOW BLOW 500mA 250V $39.99

100m φ2mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ Yellow $17.70

100m φ2mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $16.00

50 pcs. SFE 30 FUSE 30A GLASS TUBE FAST ACTING 1-7/16″ $24.99

55 pcs. SFE 14 FUSE 14A GLASS TUBE FAST ACTING 1-1/16″ $24.99

10 PKS – COOPER BUSSMANN BP/AGC-30 30 Amp FAST ACTING GLASS TUBE FUSE 5/CARD OEM $24.42

Glass Enclosed Heater Tubes 100 Volt 600 Watt LNC-0600 $29.74

1/2A 250V 312 Glass Tube Fuses $28.00

Ferraz Shawmut GMA/GGM Glass Tube Fushes 1A Qty35 (P80) $19.99

Wallace Tiernan Glass Tube NPXX-292 For Flow Meter $26.99

Glass Tube Style 10-100L/h Water Flow Measuring Flowmeter $26.94

Glass Tube Style 10-100L/h Water Flow Measuring Flowmeter $26.77

Glass Tube Style 10-100L/h Water Flow Measuring Flowmeter $26.74

Glass Tube Style 10-100L/h Water Flow Measuring Flowmeter $26.38

100m φ1mm Silicon Fiber Glass Insulated Tube Sleeving UL 1500V VW-1 180℃ White $12.80

25pcs NEW GLASS TUBE FUSE SLOW BLOW 1 AMP 250V $24.99

25 Fuses Bussman MDL-1/2 250V 1/2 Amp Time Delay Glass Tube Fuses New $22.00

Neon sign supply, curtis corks, for neon tube bending, 10mm to 15mm glass tubes $20.00

100 pcs, Bussmann Time-Delay Fuses 6.3A 250V GDC-6.3AI $14.95

1A-20A 250V 11 kinds Glass tube Fuses 5*20mm 5mmx 20mm $16.20

100 x 250V 7A Quick Fast Blow Glass Tube Fuses 6 x 30mm $15.39

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $15.36

BUSS GLASS TUBE FUSES BUSSMANN MFG SFE 30 NEW SAFETY $15.00

Buss AGC5, 32V, 5A, glass tube, fuses, lot/10 $7.95

100 x Quick Fast Blow Glass Tube Fuses 250V 20A 6 x 30mm $13.46

100 x Quick Fast Blow Glass Tube Fuses 250V 20A 6 x 30mm $13.45

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $13.45

100 x Quick Fast Blow Glass Tube Fuses 250V 20A 6 x 30mm $13.45

100 Pcs 7A 250V 6 x 30mm Fast Blow Glass Tube Fuses New $13.44

250V 20A 6 x 30mm Low Breaking Capacity Glass Tube Fuse $13.44

250V 7A 6 x 30mm Low Breaking Capacity Glass Tube Fuses $13.43

250V 7A 6 x 30mm Low Breaking Capacity Glass Tube Fuses $13.41

100 x 250V 7A Quick Fast Blow Glass Tube Fuses 6 x 30mm $13.41

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $13.41

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $13.27

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $13.27

100 x 250V 7A Quick Fast Blow Glass Tube Fuses 6 x 30mm $13.24

100 x 250V 7A Quick Fast Blow Glass Tube Fuses 6 x 30mm $13.24

100 x 250V 7A Quick Fast Blow Glass Tube Fuses 6 x 30mm $13.24

250V 7A 6 x 30mm Low Breaking Capacity Glass Tube Fuses $13.23

250V 20A 6 x 30mm Low Breaking Capacity Glass Tube Fuse $13.23

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $13.22

250V 20A 6 x 30mm Low Breaking Capacity Glass Tube Fuse $13.21

250V 20A 6 x 30mm Low Breaking Capacity Glass Tube Fuse $13.20

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $13.20

100 x Quick Fast Blow Glass Tube Fuses 250V 20A 6 x 30mm $13.20

250V 7A 6 x 30mm Low Breaking Capacity Glass Tube Fuses $13.19

100 x Glass Tube Fuses 6 x 30mm 250V 20Amp Fast Blow $13.19

Glass Tube Questions

Test Tube Hummingbird Feeders, Glass or Plastic?

As long as there have been test tube hummingbird feeders, the most commonly question asked is; “Should I use glass or plastic test tubes?” Is there a difference in attracting hummingbirds? Does one material last longer than the other and is one easier to clean?

The most obviously difference in test tube hummingbird feeders is that glass will break easier than plastic. If you drop a glass test tube versus a plastic tube, it will probably shatter. However, a plastic tube scratches very easily. Under normal outside elements such as sun and rain, a plastic tube will turn a dingy yellow, whereas glass test tubes are more resilient to weather conditions.

Cleaning the two different tubes can also pose a challenge. The sugar/water hummingbird nectar solution turns rapidly into a sticky, molasses-type composite. Removing this sticky nectar is more difficult with plastic test tubes than glass. Many people use specifically designed brushes or pipe cleaners in order to get inside test tubes to clean them. These same brushes with stiff bristles are needed to get to the bottom of the test tube hummingbird feeders but tend to scratch the softer, plastic test tubes. Glass tubes are clinically developed products that can withstand the constant cleaning necessary for all hummingbird feeders.

Even the red caps on the ends of test tube hummingbird feeders must be taken into consideration when purchasing your gifts. Red caps that fit inside the rim of test tubes are easily to install, but harder to remove than red caps that are designed to go on the outside of the test tube ends. After the nectar solution grips onto the inside surface of test tube hummingbird feeders, it also forms a glue-like bonding on the red caps. If you purchase only the red caps that fit on the outside of the test tubes, you do not have that sticky, bonding problem. Simply run warm water over any stubborn test tubes and the properly designed red caps come right off the test tube hummingbird feeders.

The most overlooked part of any test tube hummingbird feeder is the copper. Many crafters, or anyone wishing to make their own feeder, use the wrong thickness. Copper is extremely flexible which makes it prone to weaknesses in weather conditions. If you use the thinner copper wire to hold the test tubes in place, you will discover your test tubes on the ground in a very short time frame.

Having served our customers for over two decades, we have sold the same line of high quality, test tube hummingbird feeders that have been featured in Birds N’ Bloom magazines for years. Our unique line can be used as strong plant hangars as well as hummingbird feeders. Most designs contain sparkling, red marble danglers beneath each test tube for superior hummingbird attractiveness. Suction cup window models are popular gift ideas. Be sure to visit www.wildbirddepot.com for proven test tube hummingbird feeders that withstand time and weather.

About the Author

Steve White is the owner of Wild Bird Depot, New Hampshire’s largest variety of wild bird products for over 16 years and www.wildbirddepot.com. He was on the Board of Directors for the National Bird Feeding Society. He is a guest lecturer for national conventions in St. Louis and Atlanta. Wild Bird Depot has donated over $5,000 to the local nature centers for rehabilitation. He has also donated and participated in helping local schools set up wild bird habitats for learning and research. Steve is now offering his backyard bird feeding expertise to assist others in creating wild bird sanctuaries in their backyards, one feeder at a time.

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