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MP-301 MK3 STEREO TUBE AMP, CLASS-A, MUSICAL PARADISE, TUNG-SOL 6550, RCA 6SJ7.
End: 15.01. 2024 20:28:57 on Monday
- Condition: Used
- Price: 325.0 USD
- Status: 30T 21:34:3
- Item number: 276230779935
- Seller: (|%)
- Seller information:
- Item location: Bloomington,IN,USA
- Ships to:
- Shipping: USD
- on EBAY
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Description
Price Reduced, Boxed, Ready to Ship. Cool amp, looks good, works fine. Lots of info online. From a smokers estate, but was covered. Tubes pictured are included. The amp is designed to use many types of tubes without modification. About a year ago, it was cleaned, inspected, and tubes were tested (all good), and has seen very little use since. Shipping as/is to U.S. Contiguous 48 states only. Thanks for looking!
2 x 6550 RCA/Tung-Sol Tubes*Super Strong Matched Pair*NOS*NIB*1972
End: 12.07. 2023 18:13:39 on Wednesday
- Condition: New: Other
- Price: 367.86 EUR
- Status: sold
- Item number: 374774125533
- Seller: fng2u (6456|98.9%)
- Seller information: Commercial (with base shop)
- Item location: east coast
- Ships to: US
- Shipping: 28,39 EUR
- on EBAY
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Description
2 x 6550 Tung-Sol Tubes Made in USA for RCA Grey Plates OOO Grey Plates NOS NIB - boxes are tattered Tested on Enhanced Triplett E3444 Laboratory Tester by Paul Hart of Ga. Results =11,600 micromhos @ 145 mA 12,100 micromhos @ 139 mA Bogey(100% or New) = 11,000 micromhos @ 140mA +/- 10% Ask any questions before buying,not after The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-14.0___Volts bias or Cathode resistance*What were your tubes tested at? I do combine shipping
3-6550 from Tung-Sol RCA & Raytheon Vintage Electronic Power Output Tubes
End: 22.06. 2023 01:00:01 on Thursday
- Condition: Used
- Price: 165.58 EUR
- Status: sold
- Item number: 175771646013
- Bids: 20
- Seller: rpbtex (1666|100.0%)
- Seller information: non commercial
- Item location: Culver City, California
- Ships to: US
- Shipping: 27,64 EUR
- on EBAY
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Description
For your consideration are three 6550 Power Tubes from Tung-Sol, RCA & Raytheon. These tubes were tested on a Hickok 539C where the minimum reading is 6250gm and the reading for a new tube is 9,615gm or better. The tubes tested at 10,000gm, 11,000gm &9,750gm
Tung-Sol (RCA) 6550 3-Hole Gray Plate Audio Tube - MIGHTY MITE TESTED
End: 22.05. 2023 11:15:58 on Monday
- Condition: Used
- Price: 114.41 EUR
- Status: sold
- Item number: 334876832259
- Seller: mrxcrdh (2742|100.0%)
- Seller information: non commercial
- Item location: Bridgeport, New York
- Ships to: US
- Shipping: 27,75 EUR
- on EBAY
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Description
STRONG TESTING TUNGSOL/RCA 6550 TUBE TESTED ON MY SENCORE MIGHTY MITE, TESTS GOOD
Matched Pair Vintage Tung-Sol (RCA label) 6550 NOS NIB Vacuum Tubes
End: 12.09. 2021 00:06:11 on Sunday
- Condition: New: Other
- Price: 253.5 EUR
- Status: unsold
- Item number: 114970869774
- Counter: 186
- Bids: 0
- Seller: bigappleaudio (1146|99.4%)
- Seller information: non commercial
- Item location: Ridgefield, New Jersey
- Ships to: Worldwide
- Shipping: 51,3 EUR
- on EBAY
Matched Pair of Tung-Sol (RCA label) 6550 NOS NIB Vacuum Tubes
End: 03.09. 2021 18:47:59 on Friday
- Condition: New
- Price: 344.93 EUR
- Status: unsold
- Item number: 224568615293
- Counter: 313
- Seller: tubetroniks (5139|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Ashland, Oregon
- Ships to: Worldwide
- Shipping: 18,75 EUR
- on EBAY
Four USA RCA TUNG-SOL 6550 KT88 vacuum tubes NR
End: 23.08. 2021 03:30:18 on Monday
- Condition: Used
- Price: 109.17 EUR
- Status: sold
- Item number: 174893252427
- Counter: 469
- Bids: 27
- Seller: liteshowspecial (909|100.0%)
- Seller information: non commercial
- Item location: Palo Alto, California
- Ships to: Worldwide
- Shipping: 46,21 EUR
- on EBAY
Pair RCA TUNG-SOL 6550 KT88 vacuum tubes tested matched codes NIB USA
End: 23.08. 2021 03:28:25 on Monday
- Condition: New: Other
- Price: 205.9 EUR
- Status: sold
- Item number: 185000334356
- Counter: 381
- Bids: 18
- Seller: liteshowspecial (909|100.0%)
- Seller information: non commercial
- Item location: Palo Alto, California
- Ships to: Worldwide
- Shipping: 46,21 EUR
- on EBAY
Pair RCA TUNG-SOL 6550 KT88 vacuum tubes tested matched codes NIB USA
End: 23.08. 2021 03:20:23 on Monday
- Condition: New
- Price: 142.36 EUR
- Status: sold
- Item number: 174893125710
- Counter: 467
- Bids: 32
- Seller: liteshowspecial (909|100.0%)
- Seller information: non commercial
- Item location: Palo Alto, California
- Ships to: Worldwide
- Shipping: 46,21 EUR
- on EBAY
Matched Pair of Tung-Sol (RCA label) 6550 NOS NIB Vacuum Tubes
End: 11.08. 2021 22:53:49 on Wednesday
- Condition: New
- Price: 296.5 EUR
- Status: unsold
- Item number: 224539132436
- Counter: 283
- Seller: tubetroniks (5124|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Ashland, Oregon
- Ships to: Worldwide
- Shipping: 18,85 EUR
- on EBAY
Matched Pair of Tung-Sol (RCA label) 6550 NOS NIB Vacuum Tubes
End: 18.07. 2021 20:18:22 on Sunday
- Condition: New
- Price: 337.33 EUR
- Status: unsold
- Item number: 224511994631
- Counter: 245
- Seller: tubetroniks (5106|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Ashland, Oregon
- Ships to: Worldwide
- Shipping: 45,92 EUR
- on EBAY
(2) NOS NIB 3- Hole Tungsol Made RCA Logo 6550 = KT88 3 O Getter Audio Tubes
End: 04.07. 2021 20:58:50 on Sunday
- Condition: New
- Price: 191.33 EUR
- Status: sold
- Item number: 154517607444
- Counter: 52
- Seller: millerstubes (8329|100.0%)
- Seller information: non commercial
- Item location: Salem, Oregon
- Ships to: Worldwide
- Shipping: 41,9 EUR
- on EBAY
1 6550 KT88 RÖHRE TUNG SOL VINTAGE ORIGINAL BRAND RCA NOS
End: 16.02. 2021 19:09:39 on Tuesday
- Condition: New
- Price: 107.0 EUR
- Status: sold
- Item number: 224345640938
- Counter: 83
- Bids: 12
- Seller: perlhefter (521|100.0%)
- Seller information: non commercial
- Item location: Frankfurt
- Ships to: DE
- Shipping: 6,0 EUR
- on EBAY
2 RCA/TUNG-SOL 6550/KT88 AUDIO/VACUUM TUBES GRAY PLATE 3 GETTER MATCH TESTED
End: 02.04. 2020 00:52:36 on Thursday
- Condition: New
- Price: 165.42 EUR
- Status: sold
- Item number: 143478320263
- Counter: 941
- Seller: ofalfam (2545|100.0%)
- Seller information: non commercial
- Item location: Lompoc, California
- Ships to: Worldwide
- Shipping: 45,11 EUR
- on EBAY
2 NOS RCA/TUNG-SOL 6550/KT88 AUDIO/VACUUM TUBES GRAY PLATE 3 GETTER TESTED
End: 02.04. 2020 00:51:51 on Thursday
- Condition: New
- Price: 206.41 EUR
- Status: sold
- Item number: 164030520026
- Counter: 825
- Seller: ofalfam (2540|100.0%)
- Seller information: non commercial
- Item location: Lompoc, California
- Ships to: Worldwide
- Shipping: 44,91 EUR
- on EBAY
Qty 4, RCA, Tung-Sol JAN 6550A, 1974, 3 Hole Grey Plate, Measure High Amplitrex
End: 23.03. 2020 18:33:41 on Monday
- Condition: Used
- Price: 419.62 EUR
- Status: sold
- Item number: 114145658672
- Counter: 132
- Seller: wevtt (3194|98.4%)
- Seller information: Commercial (with base shop)
- Item location: Waltham, Massachusetts
- Ships to: Worldwide
- Shipping: 52,58 EUR
- on EBAY
Qty 3, RCA, Tung-Sol JAN 6550A, 1974, 3 Hole Grey Plate, Measure Very High Ampli
End: 10.03. 2020 23:50:22 on Tuesday
- Condition: Used
- Price: 401.98 EUR
- Status: sold
- Item number: 352967152643
- Counter: 149
- Seller: wevtt (3186|98.4%)
- Seller information: Commercial (with base shop)
- Item location: Waltham, Massachusetts
- Ships to: Worldwide
- Shipping: 54,41 EUR
- on EBAY
2 NOS RCA/TUNG-SOL 6550/KT88 AUDIO/VACUUM TUBES GRAY PLATE 3 GETTER MATCH TESTED
End: 30.01. 2020 08:23:07 on Thursday
- Condition: New
- Price: 239.66 EUR
- Status: sold
- Item number: 164030516368
- Counter: 230
- Seller: ofalfam (2526|100.0%)
- Seller information: non commercial
- Item location: Lompoc, California
- Ships to: Worldwide
- Shipping: 44,91 EUR
- on EBAY
Vintage RCA TungSol 6550 tubes Matched Pair Tung Sol
End: 17.01. 2020 20:51:25 on Friday
- Condition: New
- Price: 129.7 EUR
- Status: sold
- Item number: 333474758036
- Counter: 231
- Bids: 9
- Seller: alfreddforbes (4432|100.0%)
- Seller information: non commercial
- Item location: Charlotte, North Carolina
- Ships to: US
- Shipping: 22,52 EUR
- on EBAY
Vintage RCA TungSol 6550 tubes Matched Pair Tung Sol
End: 10.01. 2020 01:41:05 on Friday
- Condition: New
- Price: 113.24 EUR
- Status: sold
- Item number: 333463766094
- Counter: 293
- Bids: 7
- Seller: alfreddforbes (4432|100.0%)
- Seller information: non commercial
- Item location: Charlotte, North Carolina
- Ships to: US
- Shipping: 22,32 EUR
- on EBAY
Qty 4, RCA, Tung-Sol 6550, OOO, Three Getter, 1960s, Measure High Amplitrex
End: 19.12. 2019 04:23:58 on Thursday
- Condition: Used
- Price: 447.01 EUR
- Status: sold
- Item number: 113942620026
- Counter: 339
- Seller: wevtt (3179|98.6%)
- Seller information: Commercial (with base shop)
- Item location: Waltham, Massachusetts
- Ships to: Worldwide
- Shipping: 53,57 EUR
- on EBAY
Vintage RCA TungSol 6550 tubes Matched Pair Tung Sol
End: 27.11. 2019 02:38:27 on Wednesday
- Condition: Used
- Price: 84.04 EUR
- Status: sold
- Item number: 233408626643
- Counter: 230
- Bids: 3
- Seller: alfreddforbes (4426|100.0%)
- Seller information: non commercial
- Item location: Charlotte, North Carolina
- Ships to: US
- Shipping: 22,56 EUR
- on EBAY
RCA 6550V1 factory matched pair 6550 V1 tubes NOS NIB NEW USA Tung-Sol USA3 L#2
End: 27.11. 2019 00:45:04 on Wednesday
- Condition: New
- Price: 186.57 EUR
- Status: sold
- Item number: 123978066470
- Counter: 279
- Bids: 3
- Seller: rjputnak (23822|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Monongahela, Pennsylvania
- Ships to: Worldwide
- Shipping: 23,98 EUR
- on EBAY
RCA 6550V1 factory matched pair 6550 V1 tubes NOS NIB NEW USA Tung-Sol U.S.A.3
End: 24.11. 2019 00:29:35 on Sunday
- Condition: New
- Price: 190.57 EUR
- Status: sold
- Item number: 123978053362
- Counter: 146
- Bids: 3
- Seller: rjputnak (23812|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Monongahela, Pennsylvania
- Ships to: Worldwide
- Shipping: 23,98 EUR
- on EBAY
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