Vacuum Tube
Todays deals on Vacuum Tube?
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Quartz Process Tube 150mm OD x 1200mm L (6″ x 48″) for Vacuum Tube Furnaces $1,299.00 |
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KILOVAC H-25 50KV VACUUM SWITCH TUBE -NEW- $995.00 |
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Vintage Tektronix 500 Series Oscilloscope 543A~Type CA – Electron / Vacuum Tube $1,000.00 |
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Vintage US Navy Hickok Cardmatic USM118B Vacuum Tube Tester $899.99 |
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Quartz Process Tube 120mm OD x 1200mm L (4.72″ x 48″) for Vacuum Tube Furnaces $899.00 |
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1 Matched Quad PSVANE Vacuum Tubes 300B-T $710.00 |
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Quartz Process Tube 100mm OD x 1200mm L (4″ x 48″) for Vacuum Tube Furnaces $619.00 |
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Hickok 6000A Vacuum Tube Tester, Checker..Must See! $499.00 |
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SIEMENS VACUUM-SWITCH-TUBE VS 10028 *NICE* $500.00 |
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Quartz Process Tube 80mm OD x 1200mm L (3.15″ x 48″) for Vacuum Tube Furnaces $499.00 |
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Matched Quad TJ Full Music Vacuum Tubes KT88/c Graphite Plate $498.00 |
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Quartz Process Tube 75mm OD x 1200mm L (3″ x 48″) for Vacuum Tube Furnaces $489.00 |
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Matched Pair TJ Full Music Vacuum Tubes 300B/c Graphite Plate $429.00 |
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OLD VINTAGE HEWLETT PACKARD UHF SIGNAL GENERATOR MODEL 616A VACUUM TUBE 1948-52 $375.00 |
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Vintage HP Hewlett-Packard 650A Vacuum Tube Test Oscillator Signal Generator $300.00 |
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1 Matched Pair PSVANE Vacuum Tubes 300B-T $358.00 |
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Vintage german NEUBERGER We238 Vacuum Tube Tester from 1935 $299.00 |
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100 NOS Raytheon CK – 6205 WA (submini) Vacuum Tubes $325.00 |
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Calibrated B&K Dyna-Jet 707 Vacuum Tube Tester Mutual Transconductance $299.99 |
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1 Matched Quad PSVANE Vacuum Tubes KT88-T $330.00 |
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New LAM 839-024498-100 Weldment Helium & Vacuum Tube $299.99 |
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ANTIQUE VINTAGE VACUUM TUBE TESTER TRIPLETT MODEL 1200 +BATTERY c. 1935 UNTESTED $320.00 |
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50x Vacuum Ceramic Valve FU50 FU-50 Tube Socket,50R $308.00 |
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Quartz Process Tube 60mm OD x 1200mm L (2.36″ x 48″) for Vacuum Tube Furnaces $299.00 |
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200,Vacuum Tube 8-Pin Socket for EL41 EF41 ECC40,8Y9 $281.00 |
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Quartz Process Tube 80mm OD x 500mm L (3.15″ OD x 20″ L) for Vacuum Tube Furnace $269.00 |
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50, GOLD 7-Pin 813 Radio Ceramic Vacuum Tube Socket,7AG $268.00 |
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Quartz Process Tube 75mm OD x 500mm L (3″ OD x 20″ L) for Vacuum Tube Furnace $259.00 |
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Knight KG-600C 600 C Vacuum/Amp/Radio Tube Master Tester/Checker w/manuals $229.75 |
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Quartz Process Tube 50mm OD x 1200mm L (2″ OD x 48″ L) for Vacuum Tube Furnace $219.00 |
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NOS Tube Eimac 2X1000A High Vacuum Power Rectifier Diode Electron Tube $199.99 |
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50,AMP Gold 6-Pin Ceramic Vacuum Valve Tube Socket,61G $199.00 |
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Quartz Process Tube 40mm OD x 1200mm L (1.57″ x 48″) for Vacuum Tube Furnaces $199.00 |
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HP 412A DC Vacuum Tube Voltmeter *FREE SHIPPING* $189.99 |
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General Electric 5557/FG-17/715 Vacuum Tube (Thyratron Tube) $170.00 |
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48 X Russian Vacuum nixie tubes IN-19B 48 PS $168.00 |
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VINTAGE KNIGHT RF SWEEP GENERATOR 7 VACUUM TUBES 2 LEADS 83YX-123(?) $0-SHIPPING $170.00 |
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130pcs,Preamp Ceramic 7-Pin Valve Vacuum Tube Socket,7F $168.00 |
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1 Matched Pair PSVANE Vacuum Tubes KT88-T $167.00 |
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Eico 625 Vacuum Tube Tester Near Mint Condition Pro-Made Case Original Manuals $125.00 |
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10 Military NOS Vacuum Tubes JAN CEQ 72 $149.99 |
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1 Matched Pair PSVANE Vacuum Tubes 6CA7-T (EL34) $148.00 |
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50,7-Pin 832-6A6 Radio Ceramic Vacuum Tube Socket,713 $148.00 |
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50,Preamp 6-Pin Ceramic Vacuum Valve Tube Socket,C61 $148.00 |
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38 X Russian Vacuum nixie tubes IN-19A 38 PS $135.00 |
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VINTAGE OLD VACUUM TUBE TESTER EICO MODEL 625 UNTESTED GOOD COSMETIC SHAPE $145.00 |
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200,Vintage PRE-AMP Vacuum Tube 6-PIN Panel Socket,S61 $145.00 |
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Vintage NOS RCA 12BH7 12BH7A Vacuum Tubes 10 pcs $139.99 |
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57 Various Vacuum Tubes $139.99 |
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Vintage EICO Model 625 Vacuum Tube Tester Test Equipment $139.00 |
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50,Gold Vacuum AMP Tube 8-Pin Socket KT88 6550 EL34,1AG $138.00 |
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50, Vacuum Tube 9-Pin Socket for 6DJ8 E80CC 12AU7, 92G $138.00 |
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50,Gold Vacuum AMP Tube 8-Pin Socket KT88 6550 EL34,Y8G $138.00 |
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50,Gold Vacuum Tube 9-Pin Socket for 12AX7 12AU7,9FG $138.00 |
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50,Gold Vacuum AMP Tube 8-Pin Socket KT88 6550 EL34,Y6G $138.00 |
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50,Vacuum Tube Gold Socket 12AU7 12AX7 6DJ8 EL84,9Y2G $138.00 |
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Quartz Process Tube 60mm OD x 500mm L (2.36″ OD x 20″ L) for Vacuum Tube Furnace $129.00 |
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100,Valve Vacuum Tube 7-Pin DIY AMPLIFIER PCB Socket,7Y $129.00 |
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100,Valve Vacuum Tube 9-Pin 12AX7 12AU7 PCB Socket,S9Y $129.00 |
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Heath Schlumberger Vacuum Tube Voltmeter VTVM SM-21A $125.00 |
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99 X Russian Vacuum nixie tubes IN-7 99 PS $98.00 |
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VINTAGE PRECISE MODEL 630 RF-AF TV MARKER BAR GENERATOR VACUUM TUBE CIRC 1962 $115.00 |
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C90448 Amperex 833A RF Power Amplifier Vacuum Tube Oscillator Modulator $99.99 |
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Torr Electronic Vacuum Gage for use with DV-24 Gauge Tube $99.95 |
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JRC PI 60 Vacuum Tube PI60 $88.00 |
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SANWA VACUUM TUBE VOLTMETER SV-506 $69.99 |
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Hastings DV-4D-VCR Thermocouple Vacuum Gauge Tube $100.00 |
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50,Vacuum Tube 7-Pin DIY PREAMPLIFIER Gold Socket ,7YG $108.00 |
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50,Vacuum Tube 9-Pin Socket for 12AX7 12AT7 6922,9YG $108.00 |
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50,Vacuum Tube 7-Pin DIY PRE-AMPLIFIER Gold Socket ,7FG $108.00 |
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Lot of 65 VIntage Mixed Sized Tube Vacuum Radio Mint Capacitors and Resistors $77.77 |
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RCA Misc vacuum Tubes (1) 12 AU 6 (1) 12 AT 7 (1) Misc $74.40 |
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Raytheon 5608A Vacuum Tube NEW $102.00 |
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TELEDYNE DV-5M THERMOCOUPLE VACUUM TUBE GAUGE DV5M NIB $100.00 |
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Quartz Process Tube 50mm OD x 500mm L (2″ OD x 20″ L) for Vacuum Tube Furnace $99.00 |
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50,Vacuum Tube 9-Pin Shield Socket for 12AX7 12AU7,G55 $99.00 |
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4 NOS CV 1054 VR 54 10E/11400 Vacuum Tubes $98.97 |
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Lot of 47 Vintage Mixed Sized Tube Vacuum Radio Mint Capacitors and Resistors $68.88 |
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4pcs NEW MATCHED QUAD 811A VACUUM TUBES $68.00 |
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Teledyne Hastings Vacuum Gauge Tube Type DV-5M $85.00 |
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Sylvania 12 AU 6 vacuum tubes Qty of 4 $65.10 |
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RUSSIAN EL81 6P13C ELECTRONIC VACUUM TUBE BOX $90.00 |
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NEW National Electronics 6155/QB3/300 RF Power Tetrode Vacuum Tube 5V $89.99 |
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50, PRE-AMP Vacuum Tube Socket EL84 EC88 6DJ8 EL84, 9Y2 $88.00 |
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50,PRE-AMP Vacuum Tube Socket 12AU7 12AX7 6DJ8 EL84,C92 $88.00 |
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Hewlett Packard HP 412AR DC Vacuum Tube Voltmeter w/ Probes – RACKMOUNT unit $69.99 |
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Matched Pair PSVANE Vacuum Tubes KT88 HiFi-Series $85.00 |
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Sanwa Denki Vacuum Switch assembled w 1 1/2″ I.D.Tubing $75.00 |
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LOT SMC ISE30 PRESSURE SWITCH DST-531 VACUUM GAUGE TUBE $74.99 |
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10,Vacuum Valve FU50 FU-50 Tube AMP Gold Socket,50RG $83.00 |
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vacuum tube voltmeter model 410 b $80.00 |
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50,PRE-AMP Vacuum Tube Socket for 12AX7 6DJ8 EL84,C9F $78.00 |
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50,Vacuum Tube 8-Pin Socket for EL41 EF41 ECC40,8Y9 $78.00 |
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Airserco 8970-3M High Vacuum Gauge Tube 1/8″ $74.99 |
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Teledyne Thermocouple Gauge Tubes(sensors) Vacuum Gauge Tube Type DV-6R $74.99 |
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Vintage Hewlett Packard 400D Vacuum Tube Voltmeter (tag # 21) $50.00 |
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25 PCS – Belton Micalex PC mount vacuum tube socket, 8 pin top or bottom mount $64.95 |
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10x Vacuum Ceramic Valve FU50 FU-50 Tube Socket,50R $69.00 |
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Various Nixie Russian USSR VFD Tubes IVL Vacuum Display $39.98 |
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50,Vacuum Tube 9-Pin Shield Socket for 12AX7 12AU7,P91 $66.00 |
Vacuum Tube Questions
How to Buy the Best Vacuum
How to buy The Best Vacuum
Which vacuum is the best? We get asked that question all the time. The truth is it depends on your needs. That is why we sell many different kinds. The purpose of this article is not to tell you but to educate you on principles of what makes a vacuum great. Then you can be better informed as to what vacuum is best for you. We have sold over 10000 vacuum cleaners on ebay alone and we hope some of our knowledge will be able to help you. I believe there are 4 things which you should look for in a vacuum:
Quality Engineering
Power Head Suction -Funnel vs. Straw
Durability
Filtration
Quality Engineering :Most plastic uprights that I have seen sold at the superstores does not have quality engineering. Let me give you an example. HEPA filtration becomes popular so the people that make those vacuums put those filters on their vacuum but change nothing else. The purpose of the filter is to separate air and dirt. Keep the dirt in the vacuum and let the air out. HEPA filters are very tight filtration and are normally good. So these vacuums pick up the air and dirt and it travels along the suction tube until it hits the HEPA filter. The air is looking for the path of least resistance. It then hits the HEPA filter and back tracks through the vacuum tube look for unsealed tubing and bearings. When it finds that it blows out through that. Over the years we have seen so many of those vacuums come in just covered in dirt but the HEPA filter is in really nice condition 
What makes me mad about that is the Mom who has kids at home with allergies or asthma think that will help them when they would have been better off using a older vacuum. This is an example of vacuums being sold with poor engineering. Another down side to them is they have a shelf life of 2 to 4 years on average and then the superstores want you to come back and buy another one. The vacuums we sell with Quality Engineering can easily handle the advanced filtration like HEPA filtration and their shelf life can be measured in the number of decades instead of years.
Power Head Suction :- Funnel vs. Straw This builds on our first principle of superior design.
The back of a Kirby head has a suction hole in the middle of the head. This allows for the same suction all the way across the vacuum head.
The average plastic upright vacuums you would find the suction tube going into the end of the head on one side. If the average vacuum head is 14 inches wide that means that you have good suction on about 3 to 4 inches. On a vacuum like that the large chunks are swept in by the brushroll and the dirt and sand and ground down into your carpet.
So what are the advantages to a funnel design vacuum cleaners? One is you actually vacuum up the dirt instead of storing it in your carpet. The second is you can add years of your life to your carpet (and save money on carpet). Almost every vacuum we sell has the funnel design with suction in the center of the head.
Durability :We talked about this already in Quality Engineering but most of our vacuum cleaners we sell age can be measured in decades. I have seen a lot old rainbows, kirbys, filter queens, electrolux and tristars that are 30 plus years old, it is very common. The plastic ones being sold in the super stores just don’t stand up for the most part.
These are some of our trade ins that are worthless and we just throw them away. Even the thrift stores have banned us from donating them Durability is their to save your money.
Filtration :Their can be some pretty dirty things in the carpet and air. We want to keep those in the vacuum and not in your families lungs. I think we would all be surprised at how much healthier we would all be. Remember our first principle though. Filtration does no good without quality engineering.
In conclusion I hope you were able to understand the principles talked about here and that this article was a help to you. If you are not certain which vacuum is best for you and your family, feel free to drop me an email at great_vacs@yahoo.com. Our advice is free and we sell all makes and models and will suggest something based on your needs. If you do this tell me about your needs. Things like pets, kids, stairs, health considerations etc. I can then suggest something for you.
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