The sounding these tubes bringing about is amazing which is far beyond your expectation. They are worth a try and I must say that they are worth every penny. I tested them on my amplifier and they work flawlessly.
Brimar 6SL7 CV1985 ECC35 5691 Black Plate D Getter NOS Tested Balanced
4 US LOWREY 6SL7 GT VT-229 5691 TUBES Square Getter Smoked Glass
RARE Matched Pair RCA 5691/6SL7/ECC35 black plates tubes – 1979 – Tests NOS
Premium version of 6SL7. For sale is a RARE Matched Pair RCA 5691/6SL7/ECC35 black plates tubes. Made in the US, 1979. Tests very strong at NEW level and tightly matched. Here you will find a wide selection of NOS and reissue tubes.
Tungsol 6SL7 5691 VT-229 Black Glass, Round Plates Square Mica Matched Pair Rare
Matched pair and matched quads are available. There were small cracks on the base which don’t affect the sounding quality. What you see is what you get. Sold as is. I am more than willing to. Besides, Vietnam.
2X 6SL7 JAN Tung Sol CTL-VT-229 Smoked Round Plate 5691 Vintage NOS ECC35
You are bidding for Two Vacuum NOS tube 6SL7GT JAN-CKR. Tung-Sol VT-229 – ECC35 – 5691 – CV1984 – 6?9? – 6N9PNew original Vintage Old BoxRound Plates JAN – Joint Army Navy from USA military specificationCTL – Grey round plate 3/4 smoked glass, black baseBottom square getterMade early 50’sData PKD. code in box July 1953 Sperry Gyroscope CompanyDivision of the sperry corporation Tube ElectronSound Great Bass, smooth Slightly Warm Mids and highs TESTED STRONG AS TUBES OF US IN MY TUBE Tester B & K 707 Dyna Jet TEST GOOD IN GS-360P Digital vacuum tube tester Test at ua(v) 250v, ug2(v) 250v, ug1(v) -14v result test : ia(ma) set result test at: (2.49 / 2.47) and (2.79 / 2.49) set result test at: (2.97 / 3) and (2.98 / 2.98)set result test at: (3.20 / 3.19) and (3.20 / 3.21)set result test at: (2.74 / 2.76) and (2.76 / 2.74)set result test at: ask…….. Test very strong by GOOD in B&K Model 707 Tester. with NO shorts or grid emissions This is guaranteed to work great for you. Please see my pictures for details. see the photos, it’s what will send you, real photos. Buyers are also responsible also to pay any custom’s fees and duties under the laws We accept PAYPAL, Payooner only IMPORTANT for WORLDWIDE eBayers: I ship this item from MEXICO with “Parcel Post” and I can ship worldwide. After shipping I will supply the number of your parcel.For any further questions please contact me. Thank you. You are Welcome! International shipments. By parcel post some time take a little longer than normal in countries like Japan,Canada, UK, Australia, China, I send tracking number for Mexico, in this country need to check at arrivet maybe dont tracking there , I could request a faster shipping EMS with extra cost, thanks for understanding,
A pairs 6SL7GT 5691 6N9P 6H9C TUBES IN ORIGINAL BOX US WESTINGHOUSE
6SL7 can replace VT-229 5691 6N9P 6H9C. A pairs 6SL7GT TUBES IN ORIGINAL BOX US WESTINGHOUSE. Square Getter. Smoked Glass. I had test them in VT-7, the value is. (6SL7 IN VT-7 THE Mini-mum value is 32/32).
Tungsol 6SL7 5691 VT-229 Black Glass, Round Plate Square Mica NOS Matched Pair
What you see is what you get. I am more than willing to. Besides, Vietnam. an invoice.
Tungsol 6SL7 5691 VT-229 Black Glass, Round Plate Round Mica Tested Matched Pair
Matched pair and matched quads are available. There are 5 pairs available. Besides, Vietnam. an invoice.
5- Westinghouse WL5691 5691 Tubes Brown Base Square Getter Amplitrex Tested
All tested on an Amplitrex AT1000 tube tester with the following results (as photographed): Tube 1- 88/93% ip 88/100% gm Tube 2- 121/117% ip 125/118% gm Tube 3- 113/86% ip 131/93% gm Tube 4- 82/86% ip 100/100% gm Tube 5- 91/82% ip 93/87% gm