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 THREE TESTED VERY GOOD 35LR6 BEAM POWER TUBES NICE OLD TIME TUBES  US $19.99
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 Lot of Radio Tubes All TESTED AND WORKING US $4.95
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 Large Lot of Radio Tubes All TESTED AND WORKING US $14.95
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 Antique Vintage radio vacuum tube C327 Cunningham Tested good US $5.99
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 Antique Vintage radio vacuum tube Radiotron UX 226 Tested weak US $3.99
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 Antique Vintage radio vacuum tube Silvertone X 226 Tested GOOD US $9.99
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 FOUR TESTED VERY GOOD 30KD6 BEAM POWER TUBES NICE OLD TIME TUBES US $19.99
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 TWO TESTED VERY GOOD 31JS6C BEAM POWER TUBES NICE OLD TIME TUBES US $13.99
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 3 VINTAGE 80 RADIO TUBES HICKOK TESTED TWO ARE ETCHED BASES US $5.99
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 NICE TUNG SOL CTL 6SN7GT 6SN7 VT 231 TUBE TESTED US $46.00
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 2A3 AMPLIFIER TUBE HI FI POWER STRONG TESTED US $22.50
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 Antique Victor Radio with Electrola Parts Vintage 1929 with Tubes Not Tested US $25.00
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 Antique GE Tube AM Radio Tubes Tested on Might Mite as Good Cream Art Deco Case US $9.99
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 6 VINTAGE ARCTURUS BLUE 127 RADIO VACUUM TUBES TESTED GOOD PLUS US $59.99
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 2 VINTAGE 3D21WB RADIO TUBES HICKOK TESTED US $7.99
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 2 VINTAGE GLOBE 42 TESTED RADIO VACUUM TUBES NICE US $49.99
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 5 VINTAGE 2A3 TESTED RADIO VACUUM TUBES NICE US $102.50
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 Pair 45 ST audio amplifier tubes RCA National Union Both TV 7 tested over 100 US $12.50
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 NOS Coronado 1F5G radio tube in Gamble Store boxtested great1F5 US $4.99
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 KNIGHT 76 RADIO TUBE FULLY TESTED NR US $4.99
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 5 VINTAGE GLOBE 247 TESTED RADIO VACUUM TUBES ENGRAVED BASES NICE US $39.99
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 TUNG SOL 45 TUBE FULLY TESTED NR US $4.99
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 GM ETCHED 6A8G Tube FULLY TESTED NR US $4.99
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 Large RCA globe 45 245 Twin Triode Amplifier TubeEngraved BaseTV 7 tested 85 US $11.50
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 2 RCA 38 Tube VT 38 MATCHED PAIR FULLY TESTED NR US $4.99
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 6 TESTED GOOD GLOBE ST DIANA UX 201A RADIO TUBES TYPE 01A CUNN CECO RVC US $79.99
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 1 Used Vintage Sylvania Metal 6SJ7 Radio Vacuum Tube Tested US $9.95
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 1 Pair NOS Vintage RCA 6AG7 Metal Radio Vacuum Tubes Tested US $14.95
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 1 TESTED GOOD GLOBE 4 PILLAR RAYTHEON ER 247 RADIO TUBE TYPE 47 EVEREADY US $49.99
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 17 TESTED GOOD RCA 5U4G RADIO TUBES TYPE 5U4GB TUNG SOL SYLVANIA GE JAN RADTEL US $99.99
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 22 TESTED GOOD RCA 5Y3GT RADIO TUBES TYPE VT 197A SYLVANIA TUNG SOL GE PHILCO US $149.99
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 5 TESTED GOOD RCA UX 281 RADIO TUBES TYPE 81 WARDS DELCO NU GLOBE ST NOS USED US $89.99
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 44 TESTED GOOD RCA 41 RADIO TUBES TYPE VT 48 SOME NOS SOME USED TUNG SOL JAN US $209.99
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 5 TESTED GOOD ST RCA 46 RADIO TUBES TYPE VT 63 JAN NU KEN RAD 4 NOS 1 USED TUBE US $49.99
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 6 TESTED GOOD GLOBE RCA UX 201A RADIO TUBES TYPE C 301A CUNNINGHAM 01A BB US $159.99
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 3 GLOBE RCA UX 112A RADIO TUBES TYPE WX 12 1 NOS TESTED US $99.99
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 60 TESTED GOOD RCA UY 227 RADIO TUBES TYPE 27 GLOBE ST CUNN KEN RAD RAYTHEON US $299.99
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 ONE TESTED VERY GOOD MOTOROLA 6LX6 BEAM POWER AMPLIFIER TUBE VERY NICE TUBE US $10.99
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 TWO TESTED VERY GOOD 31JS6C BEAM POWER AMPLIFIER TUBES VERY NICE TUBES US $14.99
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 Arcturus Number 56 Blue Glass Globe Radio Tube Tested Good US $9.99
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 ONE NEW NOS GE brand JAN 12SK7Y tube Hickok pre tested US $9.95
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 Arcturus Number 51 Blue Glass Globe Radio Tube Tested Good US $7.99
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 2 Sylvania SY 551 51 Globe Tubes Tested US $8.95
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 3 RCA Cunningham C 338 38 Globe Tubes Tested Trio US $9.95
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 2 Sylvania 55 Engraved Base Globe Tubes Tested US $8.95
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 2 RCA Cunningham Type 41 Radio Vacuum Tubes Tested US $5.95
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 4 Philco 36 Engraved Base Globe Tubes Tested US $9.95
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 4 RCA Eveready 36 Engraved Base Globe Tubes Tested US $9.95
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 6 RCA Eveready Sylvania 235 35 Engraved Base Globe Tubes Tested US $19.95
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 Vintage Plastic AM Non Tested Tube Type Radio RADIOLA Model B 247 Complete US $24.99
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 Tube Amp from Rowe AMI R 3390 A Tested and working all tubes US $58.99
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 ONE ELECTRON TUBE 1288 W BOX BY SYLVANIA ELECTRIC NOT TESTED X 11 US $9.99
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 Vacuum Tubes Lot of Three 3 RCA Radiotron Type 27 Silver Print Tested US $4.99
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 NEW OLD STOCK GE 6678 VACUUM TUBE TESTED GOOD US $4.99
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 National Union 47 ST Type Vacuum Tube Tested US $3.50
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 TWO 1 pair NOS NEW 6GM6 Tubes mixed brands fully tested US $5.99
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 11 RCA 226 26 Engraved Base Globe Tubes Tested Lot US $9.95
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 3 Eveready Raytheon Perryman 226 26 Engraved Base Globe Tubes Tested US $9.95
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 3 RCA Zenith 56 Engraved Base Globe Tubes Tested US $9.95
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 FOUR TESTED VERY GOOD 24LQ6 24JE6C BEAM POWER AMPLIFIER TUBES VERY NICE TUBES US $17.99
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 NEW OLD STOCK GE 6SJ7GT MILITARY VACUUM TUBE TESTED GOOD US $9.99
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 NEW OLD STOCK RAYTHEON 5Y4 VACUUM TUBE TESTED GOOD US $7.99
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 7H7 Tube used tested good US $5.75
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 3 5V4 TUBES TESTED US $9.95
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 2 5U4 TUBES TESTED US $9.95
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 RAYTHEON type 6F6G vacuum tube used tested US $7.95
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 SET OF 5 GLOBE CUNNINGHAM CX 201A RADIO TUBES TESTED ON A TV 7DU US $22.50
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 VINTAGE LOT OF SIX NOS 12AX7 RADIO TUBES ALL TUBES HAVE BEEN TESTED AS VERY GOOD US $12.00
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 Tube pair Sylvania VT 225 similar to 307A tested amp radio amplifier ham US $49.95
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 Vintage Radio Stereo vacuum tube 12DQ6B Tested GOOD US $4.99
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 Vintage Radio Stereo vacuum tube 5U4GB Tested GOOD US $4.99
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 Lot of 4 Vintage Radio Stereo vacuum tubes 6CD6 6CD6GA Tested GOOD US $9.99
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 Vintage Radio Stereo vacuum tube 6BK4C Tested GOOD US $5.99
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 137 Car Radio Tubes 12 Volt 1957 To 1960 NEW Tested US $149.95
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 THREE TESTED VERY GOOD 23JS6 21JS6A BEAM POWER TUBES NICE OLD TIME TUBES US $14.99
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 THREE TESTED VERY GOOD 7247 PREAMP DUOTRIODES NICE OLD TIME TUBES US $14.99
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 1940s Gorecht Sylvania Set Tested Radio Tubes Match Book Hanover PA US $7.95
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 HICKOK TESTED VINTAGE HAM RADIO AMP TUBE 6BQ5 EL84 VALVO STRONG US $9.99
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 HICKOK TESTED VINTAGE HAM RADIO AMP TUBE 3PC 5U4 GB TRONG PHILCO GM WESTINGHOUSE US $7.99
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 HICKOK TESTED VINTAGE ANTIQUE HAM RADIO AMP TUBE RCA 5Z3 BLACK PLATE USA MADE US $9.99
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 RCA Victor Bakelite Tube Radio Tested Works Very Vintage US $19.95
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 HICKOK TESTED VINTAGE HAM RADIO AMP TUBE 6SN7 GT STRONG BLACK PLATE 3PCS JAN US $29.99
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 HICKOK TESTED VINTAGE HAM RADIO PRE AMP TUBE 6V6 G GT SMOKED GREY GLASS 5 PCS US $14.99
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 HICKOK TESTED VINTAGE HAM RADIO AMP TUBE 3PC 5U4 GA GE VERY STRONG BLACK PLATE US $9.99
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 HICKOK TESTED VINTAGE HAM RADIO AMP TUBE 6Y6 GT TRONG BLACK GLASS SYLV GE 3PC US $9.99
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 HICKOK TESTED VINTAGE HAM RADIO AMP TUBE 2A3 GT STRONG RCA ANTIQUE OLD US $49.99
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 NEW NOS 6U8A tubes fully tested US $4.99
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 VINTAGE NOS NIB AMPEREX ECC189 6SE8 TUBE TESTED AS VERY GOOD HOLLAND BUGLEBOY US $5.00
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 HICKOK TESTED VINTAGE HAM RADIO AMP TUBE 6SN7 GTB STRONG 3PCS TUNG SOL BLACK PLT US $12.99
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 HICKOK TESTED VINTAGE HAM RADIO AMP JAN VT 25 TUBE TYPE 10 Y 50 REPL MATCHED US $99.99
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 171A RCA Radiotron Globe 71A Tube NIB TV 7 Tested Excellent NR Radioorphanage US $19.99
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 4 Zenith 59 Smoked Glass Coke Bottle Tubes TV 7 Tested Ex NR Radioorphanage US $19.99
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 6 Western Electric 403A Tubes New in Box TV 7 Tested Excellent NR Radioorphanage US $19.99
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 Brick of 5 AMPEREX 2E26 Tubes New in Box TV 7 Tested New –NR Radioorphanage US $19.99
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 4 Excellent 6V6G ZENITH Large Tubes TV 7 Tested Excellent Radioorphanage NR US $19.99
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 Twelve 35 or 51 Tubes TV 7 Tested Good to New NR Radioorphanage US $19.99
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 Six Excellent UX 201 A or 301 A Globe EB Tubes TV 7 Tested NR Radioorphanage US $26.00
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 Ten 24A Engraved Base Tubes TV 7 Tested Excellent NR US $19.99
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Early Pregnancy Tests Explained
An early pregnancy test can be conducted in two ways: at home through a home testing kit or at the doctor’s. When you go to the doctor, you may request for a blood or urine test. Both these tests are identical in that they look for traces of the pregnancy hormone. This hormone is unique because it is produced in the body only when the woman becomes pregnant.
Blood tests performed at the healthcare center are of two types. The qualitative hCG test is very much like a urine test, and it can simply give you a confirmation of pregnancy. For greater accuracy, it is important to go for a quantitative blood test which measures the exact amount of hormone in the blood. This test, due to its very nature, can pick up even very small traces of the hormone and is therefore very accurate. Blood tests are performed by taking a tube of blood from the vein, which is sent to the laboratory for examination. The analysis may take anywhere from a few hours to a day max.
Blood tests are generally more accurate than urine tests, and they are also quicker in offering you confirmation of pregnancy because traces of hCG appear about a week earlier in the blood than in the urine. While blood tests can determine pregnancy about a week after ovulation, urine tests take 14-16 days to come out with an accurate result. However, these days there are more sensitive urine tests that can give you a confirmation as early as a week after ovulation.
Now-a-days, many women opt for home pregnancy tests, which also test for the presence of this hormone. In this case, a strip is held to a stream of urine for a prescribed amount of time, after which the strip may develop certain color differences or markings in case the test is positive. It is generally recommended that the first urine of the day be used for the test because this is more concentrated.
Home pregnancy test kits are available in pharmacies and you do not require a doctor’s prescription to buy one. On the positive side, these tests are convenient and they ensure that your privacy is protected. On the negative side, early results may be misleading and you need to wait longer or go for an alternative blood test to be completely sure of the results. Sometimes a false negative test may say that you are not pregnant even though you have conceived. Wrong test results from home pregnancy test kits may have various reasons, including human error. In fact, they leave large room for errors caused by human carelessness. If the strip is not dipped properly or if you have not followed instructions properly, you run the risk of getting a false test result.
So it is advisable to take any negative results from a home pregnancy test with a pinch of salt. To be doubly sure, take the test again after a few days when the amount of hormone in your blood has increased, or better still, opt for a blood test.
About the Author
Early Pregnancy Tests - Pregnancy Planet is the only community on the web dedicated to pregnant and TTC parents. We provide week by week pregnancy information, symptoms & advice along with parenting tips & solutions, conception due date calculator, celebrity baby news, free TTC tickers & blinkies and much more.
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