Matched Pairs GE 6550A NOS NIB Beam Power Tubes. Test NEW (over 60) on TV7-D/U.
Matched Pairs GE 6550A NOS NIB Tubes. Test NEW (over 60) on TV7-D/U. I have 3 matched pairs of these tubes left. Price is for one (1) matched pair. You are buying one pair for the price shown. I bought these tubes brand new in the 1980’s for my own collection. They have been sitting on the shelf since then. They all have similar Factory Production Codes of RM 188-5 or RS 188-5. They all have black plates; and 3 getters, with 2 on the top and 1 on the side. The pairs are as follows: Pair #1. RM 188-5 test 62 and 62 on TV7-D/U where 44 is a good tube. Pair #2. RS 188-5 test 60 and 60 on TV7-D/U where 44 is a good tube. Pair #3. RS 188-5 test 60 and 68 on TV7-D/U where 44 is a good tube. Unless you request differently, I will sell & ship the tubes in order. 1st buyer gets Pair #1, 2nd buyer gets Pair #2, and 3rd buyer gets Pair #3. If you prefer a certain pair, just place your order and email me with your request. I will then update this ad to show which pairs are SOLD. While these tubes are NOS, NIB, and tested; we cannot offer any warranty of any kind. These tubes are being SOLD AS-IS. They will, of course, be carefully packed and shipped fully insured, should anything happen to them during transport. We will ship USPS mail with tracking. We ship to USA and Canada only.
Shuguang GEKT88 Electron Tube Audio Vacuum Tube High Quality Replaces KT88-98 ts
Description Shuguang GEKT88 Electron Tube Audio Vacuum Tube High Quality Replaces KT88-98 Fits Tube Amplifiers Description: KT88 series include KT88, GEKT88, KT88-98, KT100, CV5220, 6550A-98. This tube belongs to the indirectly heated cathode beam tetrode. Mainly used for models with higher audio power, for push-and-change output. Lower power consumption of KT88 and GEKT88 is 40W. KT88-98, KT100, CV5220, 6550A-98 boards can consume up to 45W, which is very suitable for ultra-linear tube amplifier circuits, with good voltage resistance, strong power, and wide range of sound. Design and technology of noise suppression and vibration resistance are adopted. The annual sales volume of this kind of products is between 80,000 and 100,000, which is popular with customers. The anode limit dissipation power of the beam power tetrode KT88 is 42W. In an audio amplifier, 100W can be obtained when the two tubes are used as AB1 push-pull output. At the same time, KT88 can also be used in electronic voltage regulator circuits. KT88 is similar to CV5220 and 6550 and can be used interchangeably. Package Included: – 1 x Electron Tube Payment Terms 1.We accept PayPal only. 2.All major credit cards are accepted through secure payment processor PayPal. 3.Payment must be received within 7 business days of auction closing. 4.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. Shipping Terms – For remote regions, we will charge your extra shipping costs. Usually it cost about 35USD-50USD. We will contact you after your payment. Thanks for your understanding. Return Terms 1. If you receive defective item, please kindly notify us within 14 days. We will guide you the returning instruction for replacement or refund. 2. If you purchased in improper condition, please NOTE that the sipping and handling fee will not be refund, all return shipping fee should paid by the buyer unless item DOA. 3. We reserve the right to refuse any returns for objective reasons. Custom Duties & Taxes 1. Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer’s responsibility. 2. Avoiding some unnecessary trouble, please check with your country’s customs office to inform us what we should declare its value before shipping. Feedback 1. If you are dissatisfied for any reason, please don’t be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers. 2. If you are satisfied with the product you received, please kindly leave us a positive feedback and 5 star DSR. If there is any problem of your order, please feel free to contact us firstly, we are responsible and credible seller, will follow it for you asap. On Feb-14-22 at 20:09:11 PST, seller added the following information:
GE 6550A Vintage 1985 NOS Gray Plate Vacuum Tube (excellent testing scores)
Up for sale is a new GE 6550A.
New Matched Sextet (6) Svetlana 6550C [KT88] Vacuum Tubes
New Plate Current Matched Sextet of Svetlana 6550C Vacuum Tubes. Will work in place of: 6550C, 6550, KT88, 6550A. In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain.
TAD 6550A STR BLACKPLATE PREMIUM
The TAD BLACKPLATE(TM) Series is in production again! The all-new TAD-tubeline – the Blackplates – show a top performance because of a very stable thermical heat dissipation resulting in brilliant longevity. Tonally, you can expect a sweet breakup, warm and musical mids with an overall NOS-character, following and paying hommage to the legendary designs of the golden age of tube manufacturing. Due to the closure of the tube factory in 2019, the TAD Blackplate Series was no longer available for several years. In the new production facility, these tubes have been manufactured again from old stocks of raw materials since January 2024 and are therefore available again as long as the original materials last.. Tested, selected and matched by TAD in Germany! TAD BLACKPLATE characteristics:⦁ very detailed and defined tone⦁ natural and relaxed sound characteristics⦁ lively portrayal of voices⦁ perfect for complex and three-dimensional sounds⦁ consistent thermal operation⦁ long tube-life because of stable heat dissipation
2 NOS 1959 Pair Close Matching Sylvania 6L6 Tubes MAXI Match Tested 109% of NOS
Tested on a NEW Digital Maxi Matcher Power II Tube Tester. I use the DIGITAL Maxi Matcher Power II Tester. Maxi Matcher uses their own proprietary (GM) Micromhos number value system. Maxi Matcher Plate Value at 400 Volts.
TAD 6550A STR REDBASE PREMIUM
Remake of the Classical GE6550A – TAD 6550A-STR REDBASE – depth, power & detail in perfection. The breathtakingly large and precise sound as well as its straightforward appearance make the new TAD 6550A-STR REDBASE the first choice for high-end audio applications. The 6550A-STR REDBASE is also perfect for powerful bass guitar amplifiers. It delivers a natural and three-dimensional tone with exceptional depth, pleasant warmth and fine, subtle highs. The TAD 6550A-STR REDBASE is a true remake of the classic American GE 6550A tube with a heavy, straight glass bulb, classic construction, metal base and excellent linearity.It is characterised by an extremely balanced, natural tone throughout all frequencies and helps to create a very lively sound with an incredibly powerful bass range and fine brilliance in the relaxed treble range.The TAD 6550A-STR REDBASE meets or exceeds the specifications of the classic 6550A tubes and can be used in any 6550 application with excellent performance. The REDBASE series features gold-plated control grids for outstanding performance and reliable stability with an absolute low noise floor.
New Matched Octet (8) Tung-Sol 6550 Coke Bottle Reissue Vacuum Tubes
New Plate Current Matched Octet of Tung-Sol 6550 (KT88) Coke Bottle Reissue Vacuum Tubes. Will work in place of: 6550, KT88, 6550A. In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain.
TAD 6550A STR BLACKPLATE PREMIUM
The TAD BLACKPLATE(TM) Series is in production again! The all-new TAD-tubeline – the Blackplates – show a top performance because of a very stable thermical heat dissipation resulting in brilliant longevity. Tonally, you can expect a sweet breakup, warm and musical mids with an overall NOS-character, following and paying hommage to the legendary designs of the golden age of tube manufacturing. Due to the closure of the tube factory in 2019, the TAD Blackplate Series was no longer available for several years. In the new production facility, these tubes have been manufactured again from old stocks of raw materials since January 2024 and are therefore available again as long as the original materials last.. Tested, selected and matched by TAD in Germany! TAD BLACKPLATE characteristics:⦁ very detailed and defined tone⦁ natural and relaxed sound characteristics⦁ lively portrayal of voices⦁ perfect for complex and three-dimensional sounds⦁ consistent thermal operation⦁ long tube-life because of stable heat dissipation
TAD 6550A STR REDBASE PREMIUM
Remake of the Classical GE6550A – TAD 6550A-STR REDBASE – depth, power & detail in perfection. The breathtakingly large and precise sound as well as its straightforward appearance make the new TAD 6550A-STR REDBASE the first choice for high-end audio applications. The 6550A-STR REDBASE is also perfect for powerful bass guitar amplifiers. It delivers a natural and three-dimensional tone with exceptional depth, pleasant warmth and fine, subtle highs. The TAD 6550A-STR REDBASE is a true remake of the classic American GE 6550A tube with a heavy, straight glass bulb, classic construction, metal base and excellent linearity.It is characterised by an extremely balanced, natural tone throughout all frequencies and helps to create a very lively sound with an incredibly powerful bass range and fine brilliance in the relaxed treble range.The TAD 6550A-STR REDBASE meets or exceeds the specifications of the classic 6550A tubes and can be used in any 6550 application with excellent performance. The REDBASE series features gold-plated control grids for outstanding performance and reliable stability with an absolute low noise floor.
