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NOS SIEMENS ECC801S 12AT7 E81CC Bundeswehr MATCHED PAIR    US $119.96

Matched Pair Tung Sol 6550 POWER TUBES Looks like theyve never been used    US $293.00

Vintage NOS SYLVANIA 12AX7A ECC83 7025 Radio Vacuum Tube w Orig Box Tested    US $11.50

BLUE TIPPED ARCTURUS 127 A TUBE D74    US $34.33

4 ARCTURUS 127 ENGRAVED BASE TUBES D73    US $42.50

ARCTURUS 71A GLOBE TUBE BLUE GLASS D72    US $32.99

4 Fisher RCA 7868 Tubes MATCHED QUAD    US $82.51

1 RCA Red Base 5691 6SL7 Tube NEW IN BOX    US $51.99

NOS WIZARD 201A TUBE NIB D63    US $12.00

1 Sylvania 6V6 GTA Tube TESTS STRONG    US $10.99

RCA RADIOTRON UV 201A BRASS BASE TUBE RAINBOW GLASS D62    US $30.89

1 Telefunken ECC82 Tube 12AU7 TESTS STRONG    US $22.30

WESTERN ELECTRIC VT 25 TUBE C31    US $32.99

4 NOS AMPEREX 6DJ8 TUBES NIB TEST GOOD D43    US $43.60

3 RADIOTRON UX 201A TUBES D59    US $32.50

RCA 5692 RED BASE TUBE C34    US $43.20

1 Fisher Telefunken ECC83 Tube 12AX7 TESTS STRONG    US $20.00

4 NOS AMPEREX 6DJ8 TUBES NIB TEST VERY GOOD D42    US $32.00

1 Amperex Bugle Boy ECC82 Tube 12AU7 TESTS STRONG    US $10.50

MULLARD GZ37 CV378 U54 MILITARY RECTIFIER FROM BLACKBURN LANCASHIRE GT BRITAIN    US $100.00

Strong DAYSTROM by MULLARD Short Gray Plate O Getter 12AX7 ECC83 Tube    US $44.99

Strong Sylvania DN159 Tube 200w 115v    US $9.99

WESTINGHOUSE 6HB7 VACUUM TUBE TESTS STRONG    US $.99

WESTINGHOUSE 6HQ5 VACUUM TUBE TESTS STRONG    US $.99

TWO CHATHAM ELECTRONICS 5651 VACUUM TUBES POWER SUPPLY PP 840 TRA 19 NOS    US $.99

5 Strong Tung Sol Long Gray Plate FAT D Getter 12AU7 Tubes    US $59.99

^ NOS NIB RCA 12V6GT vacuum tube in original boxtested great12V6    US $5.95

^ NOS NIB Pair Sylvania 6P5GT tubesoriginal boxestested greatMatching DC6P5    US $39.95

^ Pr NOS NIB Silvertone 7A6 Loktal loctal vacuum tubesoriginal boxtested great    US $9.95

^ NOS NIB Pr Sylvania 25AC5GT tubesoriginal boxtested greatMatching DC25AC5    US $19.95

^ Pr NOS NIB Tung Sol 14F8 Loktal loctal vacuum tubesoriginal boxtested great    US $14.95

^ Pr NOS NIB Tung Sol 14H7 Loktal loctal vacuum tubesoriginal boxtested great    US $14.95

ONE SYLVANIA 5Y3GT VACUUM TUBE    US $3.99

^ NOS NIB RCA 7Z4 Loktal loctal vacuum tube in original boxtested great    US $7.95

1960S EPIPHONE PATHFINDER MODEL EA 28 RVT    US $199.99

RCA 8JV8 VACUUM TUBE TESTS GREAT MADE IN USA    US $.99

PAIR STRONG GENERAL ELECTRIC 6L6GC AUDIO POWER AMPLIFIER TUBES f GUITAR AMP    US $20.01

Four vintage RCA and Sylvania metal 6V6 tubes tested used    US $6.95

1 Wards Airline Type 27 Engraved Base Radio Amplifier Vacuum Tube Tested Strong    US $6.99

1 Sylvania Type 41 Radio Amplifier Vacuum Tube Tested Strong    US $4.99

1 RCA 5687 Black Plate Horseshoe Amplifier Vacuum Tube Tested Strong    US $.99

1 RCA Radiotron 1C7G Radio Amplifier Vacuum Tube Tested Strong    US $3.99

1 KEN RAD 6F6 Radio Amplifier Vacuum Tube Tested Very Strong    US $1.99

1 Emerson 5U4G Black Plate Rectifier Amplifier Vacuum Tube Tested Strong    US $14.99

1 Mullard 6AQ5 Amplifier Vacuum Tube Tested Strong    US $6.99

1 RCA 6080 6AS7 Radio Amplifier Vacuum Tube Tested Very Strong NOS    US $4.99

RCA 6922 ECC88 6DJ8 Gold Pin Tube Germany    US $39.99

{3} 6AQ8 ECC85 TUBES Tested Strong The Fisher Dynaco    US $9.95

Philco Type 24 Tubes Tested Strong NR Engraved Bases    US $9.00

SAME DATE CODE 6BM8 ECC82 AMPEREX BUGLE BOY TREBLE CLEF HOLLAND AMPLIFIER TUBES    US $74.95

Western Electric 422A 274B 5U4G Rectifier Amplifier Vacuum Tube Test NOS 1952    US $304.99

NOS Set of Four RCA 6CW4 Nuvistor Vacuum Tubes from Bulk Pack Tested Strong 6DS4    US $29.99

^ NOS NIB Sylvania 25Z5 rectifier vacuum tube in original boxtested great    US $5.95

^ NOS NIB Delco 12BZ7 twin triode tube in original box12AX7 subtested great    US $9.95

^ NOS NIB Philco 35L6GT vacuum tube in original boxtested great35L6gray glass    US $6.95

RCA UX 280 80 Globe Rectifier Tube Hickok Tested Good    US $10.50

12AX7 ECC83 Amperex tube Holland believed 1963 strong tube labeled HK 321    US $50.00

12AX7 ECC83 tube Amperex1967 Herleen Holland nice tube strong 307    US $55.00

RARE VINTAGE BELL RT 65 REEL TO REEL TUBE TAPE RECORDER AMP PREAMP    US $150.00

3 MATCHING VINTAGE ELECTROHOMEPHILIPS 12AX7 TUBES    US $35.00

Single TELEFUNKEN ECC83 12AX7 Smooth long plate on base full strong tested    US $80.00

VINTAGE 12AX7A RAYTHEON ELECTRONIC TUBE TESTED NOS NICE LOOK NR    US $6.99

1 Amperex 12AX7 ECC83 Tube Made in Holland NOS TEST Nice Look NR    US $11.50

Mullard 12au7a Amp Tube Great Britian Tested Strong    US $5.00

Vintage RCA 5V4GA Electron Tube 5V4 GA Tested Boxed Nice Look NR    US $3.99

Excellent Mullard 5AR4 GZ34 Ractifier With Large Base 1961 Date    US $31.01

46 SINGLE RCA RADIOTRON TUBE USED TST STRONG GLOBE    US $24.00

Strong RCA Long Black Plate TRUE D Getter 12AX7 Tube    US $49.99

Strong Philips MINIWATT Short Gray Plate O Getter ECC83 12AX7 Tube    US $49.99

STRONG GENERAL ELECTRIC 5AR4 GZ34 TUBE f AUDIO AMPLIFIER GUITAR AMP RECEIVER    US $14.50

Lot of 5 6AQ5 Radio Vacuum Tubes Tung Sol Philco TESTED    US $9.99

WLS UV 12A UV 12 A UV 12A 12 A RARE HIGH BASE CHROME GLOBE POWER TUBE NOS    US $68.80

Mesa Boogie 12AX7A 7025 tests 92 93 Quality Tube    US $21.98

LOT OF 6 GZ34 5AR4 TUBES    US $102.50

8 NOS RUSSIAN TUBES 6N1P ECC88 6DJ8 TESTED SET    US $8.50

RARE RECTIFIER TUBE GERMAN VINTAGE VALVO TYPE UY 11 UY 11 UY11 JEJA A1J NOS    US $85.00

Quad matched PIO capacitors 4uF 400 500V Paper in oil Static professional    US $19.90

Two 45 Vacuum Tubes Sylvania and Sparton    US $45.00

National Union 50 Large ST Tube Tested Strong Guaranteed NR    US $20.50

Four 6L6GC Vacuum Tubes All Tested Good Sylvania GE etc    US $40.00

Seven 6146 6146A and 6146B Vacuum Tubes NOS to Good Used RCA Sylvania    US $55.00

6aq5 tube lot of 13 tested strong    US $21.00

NOS HYTRON MADE GE 5Y3GT FULL WAVE VACUUM RECTIFIER TUBE TESTED STRONG    US $19.99

Pair NOS RCA Gray Plate 6HR6 Vacuum Tubes Tested Strong New in Box    US $57.50

Strong National by GE Gray Plate Solid O Getter 5814A Tube w mica support rods    US $9.99

Zenith Type 59 Black Glass tube testing as NOS on Triplett 3444 Plus 1 Free 59    US $4.99

5 Sylvania 6SN7GTB tubes Angled Black Plates samed date codes emission tests    US $9.95

4 Strong RCA Black Plate D Getter 6350 Tubes    US $44.99

Single 1614 RCA Tube    US $24.95

Sextet Six CRC 843 VT 73 RCA NIB Tubes    US $235.95

Date Match Lot of 18 Sylvania 12AU7A ECC82 Amplifier Vacuum Tubes Test Strong    US $19.99

4 VINTAGE 1944 WESTERN ELECTRIC JW 6AK5 NOS MIL SPEC VACUUM TUBE AUDIO RADIO AMP    US $49.99

Marshall Labeled ECC83 12AX7 JJ tubes    US $5.00

4 Strong RCA Wurlitzer Black Plate O Getter 12FQ8 Tubes QUAD    US $13.49

3 Vintage Tubes AMC RCA 6189 12au7 12ax7 USA 1960s    US $16.95

Pair GE 6SN7 GTA Tubes Tested Strong Guaranteed NR    US $9.00

5 Strong NOS Raytheon Long Gray Plate O Getter 12AU7A ECC82 Tubes    US $49.99

You added the same amount of oxalate ion to 2 test tubes of 0.05 M Ca2+. Which formed more ppt and why?

a.oxalic acid since oxalic acid is a strong electrolyte resulting in the concentration of the oxalate ion to be greater in this test tube.
b. sodium oxalate since sodium oxalate is a weak electrolyte and does not fully dissociate causing the concentration of the oxalate ion to be low.
c. oxalic acid since oxalic acid is a weak electrolyte and does not fully dissociate causing the concentration of the oxalate ion to be low.
d. sodium oxalate since sodium oxalate is a strong electrolyte resulting in the concentration of the oxalate ion to be greater in this test tube.
e. None of the above.

d)

Giovanni Eco Chic Hair Care, L.A. Natural Styling Gel, Strong Hold, Packaging May Vary, 6.8-Ounce Tube (Pack of 3) List Price: $26.85 Sale Price: $20.70 You save: $6.15 (23%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days

Got 2b Glued Spiking Glue 6-Ounce Tubes (Pack of 3) List Price: $17.97 Sale Price: $11.49 You save: $6.48 (36%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days