Eico 667 Tube Tester Eico 667 Tube Tester 600A Receiver Tv Ham Radio Bin D5 Solid State Tube Tester Jackson Dynamic Tube Charts Dyna-Quik Tube Tester 667 Tube Tester Heathkit Tc-2 Accurate Instrument Tube Tester Model Hickok 600A Tube Tester Dyna Quik 600A Tube Tester Receiver Tv Radio Bin D4 Vacuum Tube Tester Checker Hickok 600A Eico 625 Emc Tube Tube Tester Analyzer Tube Tester Powers Heathkit Tc-2 Tube Tester Vintage Knight Tube Tester Seco Tube Tube Tester W Instruction Hickok Cardmatic Electronics Tube Tester Tv-7 U Tube Tester Signal Corps Tube Tester Tube Tester Rejuvenator 707 Tube Tester Accurate Instrument Model Tube And Battery Tester Mercury Tube Tester Model Picture Tube Tester Tube Tester Adapters 612 Tube Tester 600 Tube Tester 625 Tube Tester Tube Tester Clean Cathode Ray Tube Tester Portable Tube Tester Vintage Eico Tube Tester Heathkit Tc-2 Tube Hickok Military 606 Tube Tester Tv Tube Checker Tube Tester Adapter Conar Tube Tester Weston Tube Tester Cathode Rejuvenator Mercury Tube Tester Tube Checker Tester Model Cathode Rejuvenator Tester Eico Model 625 Tube Tester Vintage Heathkit Tube Tester Tube Tester Untested Dyna-Quik Model Eico 666 Knight Tube Tester Hickok Dynamic Mutual Accurate Instrument Co Accurate Instrument Eico 666 Tube Tester Military Tv-7 Triplett Tube Tester Rejuvenator Model Tube Tester I-177 Tube Tester I-177-B Tube Tester Roll Chart Tv-7 Tube Tester Tv-11 Tube Tester Radio Vacuum Tube Tester Electron Tube Tester Vintage Accurate Instrument Crt Tester And Rejuvenator Crt Tester Rejuvenator 700 Tube Tester Mutual Conductance Tube Tester Model Tube Test Data Instrument Tube Tester Model Triplett Tester Tube And Set Tester Tube Transistor Tester Tube Tester Meter Restorer Analyzer Dyna Jet Tube Tester Heathkit Tube Checker Model Mutual Conductance Vacuum Tube Tester Heathkit Tc-2 Tube Checker Hickok 539C 539C Tube 10-12 Tube Tester Tube Tester Operating 500 Tube Tester Vintage Heathkit Tc-2 Tube Heathkit Tube Checker Tube Tester Excellent Transistor Tester Model Vintage Hickok Model Supreme Tube Hickok 533A Dyna Jet Vacuum Tube Tester W Manual Tube Tester Instruction Manual Crt Cathode Ray Tube Tester Precision Apparatus Tube Tester Plate Bk Tester Vintage Sencore Crt Cathode Mutual Conductance Tube Tester Calibrated Cardmatic Tube Tester Tube And Transistor Tester Vintage Emc Crt Restorer Analyzer Tube Valve Tester Crt Cathode Rejuvenator Crt Tube Tester 465 Crt Hickok 6000A Tube Tester Tube Tester For Parts Or Repair Tube Tester Tested Receiver Tv Ham Radio Bin D6 Tube Data Utility Tester Vintage Hickok Tube Tester Sencore Mighty Mite Tv 7D Radio City Products Hickok 533 Jackson 648 Jackson Tube Tester Tester Filament Military Tube Tester Crt Cathode Ray Tube Tester Rejuvenator Cathode Ray Tube Model 257 Tube Tester Dynamic Conductance Tube Transistor Tester Hickok 533A Tube Tester Instrument Tube Tester Superior Tube Tester Knight Kg-600B Tester No Reserve Emc Model Tc 142 Tv-7D U Tube Tester Hickok 539B Knight Kg-600B Tube Tester Hickok 6000 Seco Model Tube Checker Model Dynamic Tube Tester Model Crt Picture Tube Model Tc-2 Roll Chart Dynamic Mutual Conductance Tube Tester Utility Tester Model Tester Model 161 Picture Tube Restorer Electronamic Tube Tester Hickok Vacuum Model 257 Vintage Seco Valve Tester Knight 600 Bk Crt Vintage Accurate Instrument Co Vintage Jackson Model Military Mutual Conductance Tube Tester Ii Tube Tester Tester In Wooden Dyna Tube Tester Instrument Co Model Superior Instrument Tube Tester Model 157 Tube Tester W Chart Tube Tester Test Electrical Tube 6000 Tube Sylvania Tube Tester Tube Tester Service Tube And Transistor Transconductance Tube Tester Grid Circuit Tube Tester Calibrated 650 Tube Vintage Eico Model Conar Model Radio Tv Tube Tester Grid Circuit Tester Radio Bin D5 Vintage Supreme Model Hickok Model 600A Picture Tube Tester Rejuvenator Knight Tube Hickok Tv-7 215 Tube
 In 
 
Order by: 
Available to: 
Price: 
 - 
eBay Affiliate Links
$
144.96
4d 14h 56m 54s
0 bids
$127.85 Shipping
Condition: Used
Location: Largo, United States
This is a Hickok Model 6000A Dynamic Mutual Conductance Vacuum Tube Tester that is perfect for anyone in need of a reliable and accurate testing equipment. ... moreIt is made by the renowned brand, Hickok, and is specifically designed to test all types of vacuum tubes. Buyer must pay for full coverage shipping insurance as well as package tracking before item is shipped. 
1
 In 

Former Listings  
 
B&K Model 707 Dyna-Jet Dynamic Mutual Conductance Vacuum Tube Tester
B&K Model 707 Dyna-Jet Dynamic Mutual Conductance Vacuum Tube Tester This unit powers on. I was able to get various lights to illuminate by testing some of the buttons, but is otherwise untested. Unit is in good cosmetic condition, case shows some wear. Packaged Carefully and I insure for full amount. Shipping to lower 48 only Thanks for looking
Vintage B&K DYNA JET 707 VACUUM TUBE TESTER manuals dynamic mutual conductance
Very nice and clean tube tester. BRAND: B&K MODEL: Dyna-Jet 707 CONDITION: Used SERIAL# 559957 SPECS: Dynamic Mutual Conductance Thank you for looking. Any questions please ask. Check out my other listings. I have B&K adaptors for sale as well. I will gladly combine shipping.
Vintage Hickok dynamic mutual conductance model 534 vacuum tube multi tester
For your consideration is a vintage Hickok Dynamic Mutual Conductance multi-tester. Model 534. Powers on but we have no way of testing it any farther. Comes with the owners manual and accessories. The wood case hinges are broke and material is coming off. It is also missing one knob but is easily replaceable. Please refer to pictures for more details. Any/All questions are welcome. This item was an Estate purchase. The estate was picked by American Pickers in Seminole. PA. It aired on Aug 20, 2012. Where's Aldo? episode. We have many more items from this estate to be listed, lots of goodies! $$ I combine shipping on all my items up for auction. $$$(if interested in combined shipping rate please contact us with your zip code) Payment due with in 3 days at the end of auction Returns are accepted with in 3 days of date delivered and only ... moreif the item is not as described. Buyer pays return shipping. Returns are given as"money back" minus any S&H fees. 6% PA sales tax International buyers are responsible for any/all customs fees Thanks for looking! RETURNS: Returns are accepted and will be given as"money back" for item sale price only. Buyer pays return shipping. NO RETURNS ACCEPTED IF: clothing has been washed and/or tags have been removed.Updated 4/25/12. Sorry for the inconvenience, it won't let us delete the old return policy from our listing. Thanks
Mercury Model 1000 Dynamic Mutual Conductance Vacuum Tube Tester
This Mercury 1000 is in great. Clean, perfectly working condition. The box is actually in nice shape, but one side of the handle is split. Check out my vacuum tube auction also.it's a lot of 175 vacuum tubes, all tested that I'm selling. I DO combine shipping. And feel free to ask questions.
B&K 700 DYNAMIC MUTUAL CONDUCTANCE VACUUM TUBE TESTER ** WORKS GREAT **
B&K 700 dynamic mutual conductance tube test in working order. This tester is from my personal collection and in exceptional condition with no damage. Minor scuffs and tarnished hardware on carry case. Tested with various tubes and aligns with calibrated 6L6 as pictured. This tester is easy to operate and has been a joy to work. Includes original tube setup manual. Shipped FedEx Ground or USPS. Powered by The free listing tool. List your items fast and easy and manage your active items.
HICKOK 600A DYNAMIC MUTUAL CONDUCTANCE VACUUM TUBE TESTER
HICKOK MODEL 600A VACUUM TUBE TESTER This model will measure the true amplification factor(Gm) of your vacuum tubes but putting a known signal on its grids. it's a more trustworthy measure of actual tube performance. Unlike simple emission testers which do not much more than show that the tube glows. This unit will measure: 4. 5, 6, 7 pin large base tubes; 8 pin octals; 8 pin micros; 8 pin in-line; and 7& 9 pin miniatures. It will measure Gm, leakage and test for shorts. Of special interest is this unit's ability to test the very oldest of tubes. Such as the 2 digit number ones( 20, 40, 80 etc) used in the earliest radios. Also, this unit will allow you to match amplifier tubes. It comes with a copy of the original instructions and the most complete set of tube settings for this model( over 100 pages) It will check most all common ... moreamplifier tubes such as: 5U4. 6AQ5, 6CL6, 6SN7, 6V6, 6L6, KT88, 12AX7 and more. Case could use recovering. Electrically this tester works fine and gives consistent results with my test 6SN7. Due to its age. It has not been re-calibrated and if you need exact readings, you will have to get it calibrated. Used. Tested, guaranteed fully working. California residents must add 8% sales tax. Shipping is $45.00 for lower 48 states- more for Alaska and Hawaii. USA sales and shipping only. No exceptions. Payment by PayPal as per Ebay rules. I stand by everything I sell. And should something arrive not as it should be- contact me before leaving feedback. I strive to make sure you are happy with your purchase. Check my feedback before you bid. Thank you for your bid. Good luck and best wishes- Bob
SECO 107A DYNAMIC MUTUAL CONDUCTANCE VACUUM TUBE TESTER SECO 107A
HERE IS A GREAT SECO 107A DYNAMIC MUTUAL CONDUCTANCE VACUUM TUBE TESTER.IT IS IN GOOD CONDITION AND CLEAN.THE LINE ADJ. FUNC. DOES NOT WORK AS SHOWN IN THE PIX.EYE TUBE LOOKS GOOD AND WILL ADJ. BUT WILL NOT CLOSE ALL THE WAY.SERIAL#8204.RECAP& CLEAN THE SWT. AND THIS DUDE WILL PROBABLY COME RIGHT UP. THANKS FOR LOOKING. JOEL.RcmdId ViewItemDescV4,RlogId p4%60bo7%60jtb9%3Fvo%7B%3Dd70f%2Bf54%3E-14472016bd7-0x10a-
Vintage Mercury 1200 Dynamic Mutual Conductance Vacuum Tube Tester-Powers Up
For Auction: Vintage Mercury 1200 Dynamic Mutual Conductance Vacuum Tube Tester- It Powers Up- I get a Red Power On light and it has a nice hum to it. But I do not have any tubes to test it with. Good Condition. International buyers- sold as is please. Please see my other auctions in my ebay store- We are practicing to be environmentally friendly by using eco tape. Used boxes, and other used packing materal. Combined shipping is available with most items. Media mail items cannot combine with non-media items. Large items may not combine in the same box. Free shipping items cannot be combined. If you are not satisfied. Feel free to return it within 14 days at your own expense. Thanks for looking. Good Luck in Bidding. Powered by The free listing tool. List your items fast and easy and manage your active items.
HICKOK 800K DYNAMIC MUTUAL CONDUCTANCE VACUUM TUBE TESTER
This is an almost pristine HICKOK 800K tube tester. My grandfather purchased this brand new and used and very little. He stored it inside its entire life. I used it to check some tubes of my own and all of the functions. Dials and rollers work perfectly. I have three tube setting books I am including in this auction. Case has some outer wear on the corners but very light. This is a great tool for testing tubes or to add to your collection. I will pack for the safest shipping. As is no warranties.
Vintage Hickok 533A Dynamic Mutual Conductance Vacuum Tube Tester Amp Hifi
Beautiful condition used Hickok 533A vacuum tube tester. 2 capacitors look to have been replaced. This tester is in good basic working order. And very clean! It powers up, goes up to line test, and tests a known good 6L6 tube strong. roll chart is tight and rolls freely. Most tube testers sold will need to be calibrated. its a given. Unless the seller can provide you with the calibration specs. Almost any tube tester will need calibrated. this tester hasnt been used in years, but does test well. The purchaser should have a good understanding of vintage electronics and be able to do any maintenance it may or may not need. It is sold as is. Comes with complete deluxe manual with all obsolete tube tests, and updates. Photos are of actual tester for sale. Will be well packed for shipping. Guaranteed to please! Please check out my other auctions ... moreand add me to your favorite seller list so you don't miss out on my vintage tube. Electronic, and musical equipment listings. Thanks for looking and good luck! Posted with
Hickok Model 600A Micromho Dynamic Mutual Conductance Vacuum Tube Tester
If you are looking for a tester with a nice case. This is not the one. The case is in terrible condition. It is intact enough to safely house the tester, it just doesn't look nice. I don't know if all functions are working. I am capable of; finding a tube number in the scroll. Plug the tube in, make the listed settings, push the listed button, and read the meter, good or replace. Other then setting the line adjust, this is all that I have the knowledge to do. I do not know how accurate it is, as I don't have a tube of a known condition or another tester to compare to. The face of the tester in in pretty good condition. It has definitely had some use. As you can see wear marks around the switches wear fingers have rubbed on it. There is a lens missing over the bias fuse, and the power cord is pretty cracked up and should be replaced ... moreas well as the short test lead. The metal name plate that is supposed to be glued under the lid has come off. The tube sockets seemed to work fine on the two I tried, but all look like they have light corrosion on the contacts. The scroll is complete and works well, it gets a little harder to roll as you approach the ends. There is some writing in pencil on the back of the face. I will wrap up the two tubes underneath to be sure they are not damaged during shipping. BE SURE TO OPEN AND REMOVE THE PACKAGING MATERIAL BEFORE USE! I will include a note making mention of this to be sure it is not forgotten. Due to its age and my lack of knowledge I am selling this"as is" Please view all pictures and contact me with any questions. I package all of my items very well for safe delivery. Thanks for looking!
B&K Model 700 Dynamic Vacuum Tube Tester Checker Mutual Conductance Works Great
B&K Model 700 Vacuum Tube Tester in Good Working Condition With Tube Specification Table on Lid.RcmdId ViewItemDescV4,RlogId p4%60bo7%60jtb9%3Fuk.rp*a4%601gc%3E-145507580d4-0x10d-
Hickok Vintage Dynamic Mutual Conductance Model 534 Vacuum Tube Tester Analyzer
Hickok Tube Tester and analyzer model 534.Super clean with everything there.Powers up when plugged in.I don't know much about this.It belonged to my grandfather.Any questions message me and I'll answer them the best I can.It looks to be very well taken care of.Includes schematic drawing of the tester plus another set of papers.It looks like its from the bottom part that scrolls.Its pretty heavy so you would be welcome to pick it up if you are near Los Angeles.Thanks. Bruce Posted with
Vintage Hickok 800 Dynamic Mutual Conductance Vacuum Tube & Transistor Tester
Hickok Model 800 Tube Tester Included is a reprinted user manual and various documents*Went through the calibration procedures(included in manual) and everything measured nominal voltages* BEAUTIFUL CONDITION All functions check out normal Various tubes tested and compared to the arsenal of tube testers we own and operate: 532. 533A, 539, 600, 600A, 750, 800, 800A Sencore tube testers, etc. Tube scroll chart is velvet smooth*SEE PICS* Appears original except: Replaced all(4) screws with new chrome screws The RCA 83 and 5Y3GT tubes appear original but cant confirm that 100% Mission Amps is our family business. Check out reviews and history Tested various tubes New/Used; all functions normal Bid with confidence and enjoy
Hickok 605 Dynamic Mutual Conductance Vacuum Tube Tester / Analyzer (R78)
Powered by Hickok 605 Dynamic Mutual Conductance Vacuum Tube Tester/ Analyzer(R78) For sale is a fair condition Hickok 605 Dynamic Mutual Conductance Vacuum Tube Tester/ Analyzer. We tested this for this listing by checking one tube successfully. We only had a 12ng7 to test with. It looks like a handle has been removed. The cord is old and very brittle. Some screws are missing as seen in the pictures. There is a lot of wear next to the thumb wheel and some stains as seen in the pictures. This can be seen at our Westlake Ohio location. You can pay with your credit card through PayPal. All Ohio state residents or purchasers utilizing our local pickup option will be charged sales tax in the amount of 8% at the time of checkout unless a valid exemption certificate is on file. Payment must be received within 2 days of the close of auction. If ... morepayment has not been received within 2 days. The auction will be revoked and a Non-Paying Bidder alert will be filed. We only shipped to confirmed addresses in Pay Pal. Please do not ask us to ship to other addresses. Packages are usually shipped within 24 hours of payment receipt(excluding Saturday/Sunday/US Holidays) Shipping costs for all orders can be determined by the shipping calculator in each listing. The shipper we utilize is of our choice unless arranged in advance of bid or purchase. We do offer combined shipping for multiple items. Please request combined shipping before you pay by sending a message with your zip code for a quote. The size and weight of items dictates whether combined shipping is possible. If for some unexpected reason we are out stock of the item. We will refund your money within 24 hours of discovery. Item damaged in shipping will result in a damaged claim through the shipping company. The shipping company will pick up and inspect all items with packing materials. Refunds will be issued once claim process is completed. International buyers, please be aware that you may incur a brokerage and/or customs fee upon delivery. Please DO NOT ask us to
HICKOK 600 TUBE TESTER RADIO VACUUM ELECTRON TESTER DYNAMIC MUTUAL CONDUCTANCE
THIS IS A OLDIE. AND IT SHOULD GO TO SOMEONE WHO WORKS ON OLD RADIOS AND TV'S. I WILL HOPE MY PICTURE SHOWS ALL, AS THIS IS SOMETHING MY DAD HAD AND I DO NOT KNOW EVEN HOW TO BEGIN TO FIGURE OUT WHAT TO DO WITH IT. PLEASE JUST ASK IF YOU SHOULD NEED EXTRA INFORMATION OR PICTURES AND I WILL DO MY BEST. I AM JUST TRYING TO CLEAN THIS PLACE UP AND IT APPEARS IT MAY TAKE A WHILE. SHIPPING MAY BE CHEAPER THAN SHOWN. DEPENDING ON YOUR ZIP CODE.
MILITARY VACUUM TUBE TESTER I-177-B SUPREME DYNAMIC MUTUAL CONDUCTANCE
Directly from a local estate. Vintage Signal Corps Military Superior I-177-B vacuum tube tester. This unit has been checked out and everything works as it should. Several different types of tubes were tested and tube test results were compared to that of a calibrated TV7 tester. Metal box has been repainted but was probably done while it was in service with the military. 41 pages of tube test data cards included. Very good condition. This will make a great addition to your collection. As is auction, no returns, NO reserve. Buyer pays $25.95 for U.S. packing& shipping. International bidders welcome with Ebay's Global shipping program. Powered by The free listing tool. List your items fast and easy and manage your active items.
Hickok 800 800K Vacuum Tube Tester Dynamic Mutual Conductance
Hickok Model 800K Vacuum Tube Tester Dynamic Mutual Conductance Up for auction is a used Hickok Model 800K Dynamic Mutual Conductance Vacuum Tube Tester. This tester is in very good cosmetic condition with only minor scuffs and dings on the case. No cracks. The tester powers up and the internal tubes warm up. The power cord looks good and the jumper cord is present. The built in tube chart roller operates very smoothly. I could not find the manual. But I see they can easily be gotten right here on ebay. This tester belonged to my father K2UBU. He was a Ham radio operator from 1956 on and took very good care of his equipment. I do not know enough about electronics to do any testing on this other than power up. I would imagine that it could use a calibration. It is packed well to ensure it arrives at your home safely. In the coming days and ... moreweeks. I will be listing a lot of Ham Radio equipment. Some are more modern and there is a lot of vintage equipment as well. If you have any questions. Please ask. Thanks for looking and Good Luck! PLEASE READ This item is in Used Condition and Sold As Is. I do not consider myself to be an expert on this item. I do however. Try to do as much research about the item as is reasonable so that I can provide pertinent details and specifications. I also inspect the item and provide any observable details, including noticed defects. All of this information together with the photos, should be used to make an informed purchase. If you have any questions or need additional information. Please ask before bidding. I will answer all emails as soon as possible. Payment is due within 2 Days after close of auction. I will ship your item on the next business or sooner. My shipping charges are the actual cost billed to me by the carrier you choose.
Hickok 534 Vacuum Tube Tester Checker Dynamic Mutual Conductance Multi Meter VOM
Up for auction is a Hickok 534 Vacuum Tube Tester Checker Dynamic Mutual Conductance Multi Meter VOM. This item is in good condition for its age. It has been tested and works. It is complete with its owners manual and extended tube setup charts. All knobs. Buttons and lights work, the VOM is also in working condition. We tested several types of tubes with it and they tested the same as on our other tester. Don't miss out on this one. Bid now! PLEASE SCROLL DOWN TO VIEW ALL PICTURES. OUR PICTURES ARE PART OF OUR DESCRIPTION. IF IT'S NOT IN THE PICTURES IT WILL NOT BE INCLUDED. If you can't see all of the picture. Reduce your browser zoom to 75% HAPPY BIDDING AND FEEL FREE TO ASK QUESTIONS! Please check our other auctions + store for more great items. We don't charge handling fees. Shipping quotes are actual charges. Items are ... moreESTATE FINDS IN USED CONDITION and MAY have wear. We are not experts in any field- ALL ITEMS SOLD AS-IS. AS FOUND- NO RETURNS ON INTERNATIONAL SALES. Powered by The free listing tool. List your items fast and easy and manage your active items.
Vintage Hickok 532 Dynamic Mutual Conductance Vacuum Tube Tester
Vintage Hickok 532 Dynamic Mutual Conductance Vacuum Tube Tester V ery good condition. I tested a tube I had and it tested good, working condition, tube shown not included) all button knobs move freely and push fine, any questions please ask, as is, tester is roughly 20" x 20" buyer pays s/h.
VACUUM TUBE TESTER DYNAMIC MUTUAL CONDUCTANCE TUBE TESTER MODEL#I-177 letter I
Hello again.This auction is for another great condition vacuum tube tester.It is called a"DYNAMIC MUTUAL ACCEPTANCE TUBE TESTER" and the Model number is#I-177A. Could not find and age on the unit but assume it is maybe a military made unit.The unit is in s metal made box and does appear to work well.Has not be calibrated or had any servicing.so the unit sell as is.Unit does have a printed manual that can be seen in the pictures an the manual appears to list all of the vacuum tubes that were made at that time. The unit weighs 15lbs.So figure this weight to be used to determine a shipping charge.Will ship overseas but please remember the extra charge.Please e-mail with any questions.Thanks for viewing and the best to all.P.S dimensions are 15 1/2 long 8" deep by about 5 3/4 tall.Thanks
HICKOK MODEL 752 DYNAMIC MUTUAL CONDUCTANCE VACUUM TUBE TESTER CALIBRATED 5/14
Super Sounds Perfect Prices. Item Description. Up for auction is a Hickok model 752 dynamic mutual conductance vacuum tube tester. Many of you who are real tube aficionados will instantly recognize the brand-name Hickok. The big Hickok"laboratory" models. The 752 series and the 539 series(along with the military version of same, the TV-7 model) are widely considered the most durable and accurate testers ever sold to the general public. They were also sold to the US Government by the thousands, to be used in critical applications, such as planes, tracking equipment, etc. so you know they had to be built to work, and keep working. There are many stories out there, some apocryphal, I'm sure, about these testers surviving floods, mud-slides, extreme rust, extreme heat, you name it, then being plugged in- only to find out they still ... moreworked. Oh, make no mistake, they do and did break down- but it usually took a lot of use and/or abuse to cause that. This tester has some very nice features. Including a test for(relative) remaining tube-life, the ability to test dual-triodes without changing settings, the ability to set exactly accurate plate-voltage that the tube was designed for, the ability to measure the tube's reading in micromhos, test and measures shorts and leakage in the tubes, and much more. One thing it will not do: it will NOT cook your dinner for you(you need a significant other for that) well, maybe it would cook your dinner ONCE- but then, you'd need a new tester.Seriously, though, this really is considered a professional unit. This unit was sent to the well-known Roger Kennedy of All Tube Testers dot com. Who inspected, cleaned and calibrated it in May of 2014. It is in relatively decent condition cosmetically for an instrument which is more than 50 years old. We are selling this tester in good faith that it is in working condition(although it might take you a while to figure that out, if you're not familiar with this line) and because of its age, we are selling it as-is, and wil