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Item Tag: 6550A 6550

Hashimoto(Sansui) HW-100-5 Out Trans 100W 5KOhm Push-Pull for KT-88,EL-156,300B

Hashimoto Electric Co., Ltd. owns all the know-how of Sansui Transformers because the transfer of SANSUI transformers to Hashimoto in 1978 was a complete transfer including technical materials and design engineers. Specification Part NumberHW-100-5Rated Output Power (W)100W at 30HzPrimary Impedance5KΩSecondary Impedance4,8,16ΩSG tap 　ProvidedFrequency Range 10Hz～60kHz (+-1dB)Insertion Loss0.15dBPrimary Inductancew/ Applied CurrentBalance 200H Unbalance 125HMaximum Allowable DC CurrentBalance 300mA Unbalance 5.5mAOutline typeWE-114Size (AxBxH : refer to Drwg.)124 x 136 x H120 mm Screw Size (mm)M3Weight　6.2KgTubes to be matched withKT-88, EL34, EL-156, 300B, 6550A, 6L6GC

Vacuum Tube, KT88-STR, Redbase, Tube Amp Doctor, Power

A very musical response, with great sound and finest details in mids and top-end; a linear and harmonious overall response with a very organic tone, make the TAD KT88-STR Redbase® TAD’s favorite tube in the KT88 and 6550A class.

New Plate Current Matched Quad (4) Svetlana KT88-SV Gold Grid Tubes

100% Guaranteed TubesAll tubes are tested for Gm, shorts, leaks, gas, and noise on one of our vintage, calibrated, or state of the art digital tube testers. Buy from the experts and avoid hassle!Visit our store to view our inventory of thousands of tubes both NOS & New Production We are an authorized dealer for New Sensor products including Sovtek, Electro-Harmonix, Mullard, Tung-Sol, and Genalex. We sell A grade quality stock, not factory seconds like many other sellers. International Buyers Please Read our Disclaimer Below – Standard Shipping can take 3 MONTHS or more – Do NOT Trust eBay Shipping Estimates Brand New Plate Current Matched Quad (4) Svetlana KT88-SV Gold Grid Vacuum Tubes The Svetlana KT88SV features a very high plate dissipation rating to improve upon already excellent reliability and presentation. Alongside a gold plated grid, tri-plate anode, and exact grid/screen arrangement, the KT88SV is an impressive high powered audio tube. Precision Testing & Matching Test Data on the Box Power Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Plate Current (Ip) and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher tube tester; Preamp Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Gain and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher Preamp II tube tester; Rectifier Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Emissions on a calibrated Hickok TV-7 or Triplett 3444 tube tester. Shipping We have a retail location located in Easthampton MA. You are more than welcome to pickup your order in person. Our typical hours are Monday – Friday 9:00 AM to 5:00 PM but we do offer extended hours so call first! All new production tubes ship for free so we do not combine shipping on new production tubes. We still combine shipping with vintage tubes. All orders before 1:00 PM EST ship same-day. All orders shipped within 1 business day. Domestic & International buyers can choose USPS First Class Mail or USPS Priority Mail.USPS First Class Mail is our default shipping method. Other options available only by request. Typical transit times: Domestic USPS First Class Mail: 3-9 Days, includes trackingDomestic USPS Priority Mail: 1-3 Days, includes trackingInternational USPS First Class Mail: Typically 3-6 weeks but up to 3 months! – NO TRACKINGInternational USPS Priority Mail: 6-14 Days – Includes Tracking International Shipping Disclaimer International orders will be shipped by USPS First Class Mail International by default, which is the cheapest possible way and you do get what you pay for. This shipping service is very cost-effective and extremely safe, but you will not be able to track your package. It usually takes 3-6 weeks for a First Class Mail International package to arrive, but can take UP TO 3 MONTHS FOR DELIVERY DUE TO CUSTOMS, ESPECIALLY IN CERTAIN STRICT COUNTRIES LIKE RUSSIA, CHINA OR BRAZIL. We guarantee all of our shipments, but we do ask that our customers wait 90 days before we grant a full refund due to a lost package. We have shipped thousands of items internationally using First Class Mail and while we have had plenty take several months to arrive, we have had less than 10 actual lost packages. * Remember – You Have 6 Months of Coverage Through PayPal or your Credit Card company * DEPENDING ON YOUR COUNTRY’S POLICIES, YOU MAY BE RESPONSIBLE FOR IMPORT TAXES WHEN ORDERING OVERSEAS FROM US. WE ARE NOT RESPONSIBLE FOR ANY TAXES, DUTIES, OR CUSTOMS FEES.Guarantee & Returns All of our products are guaranteed unless otherwise stated. We do not accept returns on the subjective basis of sonic qualities. All items all guaranteed to be as described and free of any electrical or operational faults such as shorts, low test, microphonics, noise etc. Returns will be accepted for tubes that don’t test as described in most cases, but we reserve the right to refuse a return if the tube was not tested properly by the customer; We also reserve the right to refuse a return if it is clear the item was used improperly. For example-a tube installed in the wrong amplifier. We will not accept returns for any cosmetic issues such as crooked bottles, dirty glass, poor boxes etc, unless item condition differs from the description nor will we accept a return for buyers remorse. If you bought the wrong item, you may return it but we will charge a 15% restocking fee.Vintage & NOS tubes are guaranteed for 30 days from the date of purchase;New Production tubes are guaranteed for 90 days. About UsCome visit the only retail tube store in the USA! VIVA TUBES is your source for vintage vacuum tubes. Located in an appropriately rustic mill building in Easthampton MA. We share our building with a Recording Studio, Brewery, Practice Spaces and many other small businesses. . We carry everything from vintage audio tubes and new productions to HAM tubes. We also have a variety of vintage electronic parts as well as audio equipment and more! We have a vast inventory of thousands and thousands of tubes.What started as a hobby several years ago to fund my obsession with tube audio, VIVA TUBES has quickly grown into a full time business;We pride ourselves on our excellent customer service and great attention to testing and product detail. Shop with us and find out why the majority of our customers are repeat customers.WE ARE ALWAYS BUYING TUBES – LARGE OR SMALL LOTS – WE CAN ACCEPT SHIPMENTS OR MAKE AN APPOINTMENT TO VIEW LOCALLY – PLEASE CONTACT

New Plate Current Matched Pair (2) Svetlana KT88-SV Gold Grid Tubes

100% Guaranteed TubesAll tubes are tested for Gm, shorts, leaks, gas, and noise on one of our vintage, calibrated, or state of the art digital tube testers. Buy from the experts and avoid hassle!Visit our store to view our inventory of thousands of tubes both NOS & New Production We are an authorized dealer for New Sensor products including Sovtek, Electro-Harmonix, Mullard, Tung-Sol, and Genalex. We sell A grade quality stock, not factory seconds like many other sellers. International Buyers Please Read our Disclaimer Below – Standard Shipping can take 3 MONTHS or more – Do NOT Trust eBay Shipping Estimates Brand New Plate Current Matched Pair (2) Svetlana KT88-SV Gold Grid Vacuum Tubes The Svetlana KT88SV features a very high plate dissipation rating to improve upon already excellent reliability and presentation. Alongside a gold plated grid, tri-plate anode, and exact grid/screen arrangement, the KT88SV is an impressive high powered audio tube. Winged C? SED? Svetlana? What? A note about the confusing history of SED, Svetlana and Winged C. These tubes were made by the New Sensor Corporation in the Reflektor plant in Russia. These tubes are reissues of the original pre 2003 SED/Winged C tubes and were not made in the same factory as the originals. They are made in the Reflektor plant by New Sensor along with other brands like Sovtek, Tung-Sol, Genalex and Mullard. New Sensor makes them almost the same with extremely minor differences. You would be hard pressed to tell the difference between the two in a blind test. In 2003, New Sensor won the rights to the Svetlana name and started producing tubes under that name that were near copies of the originals. As the original manufacturer was struggling with a failing business, their quality dropped and the later Winged C tubes are known to have severe quality control issues. The original Winged C tubes are priced highly only because you can’t get them any longer. So to summarize, these are reissues of the original SED / Winged C tubes. We use all three brand names because many people only know these tubes as one brand while at certain points all three were made. There really are only two versions, the originals made in the St Petersburg factory, and the reissues made in the Reflektor factory. The originals were made under the SED, Svetlana and Winged C names. The reissues use a the original stylized S logo and are branded Svetlana. Precision Testing & Matching Test Data on the Box Power Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Plate Current (Ip) and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher tube tester; Preamp Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Gain and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher Preamp II tube tester; Rectifier Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Emissions on a calibrated Hickok TV-7 or Triplett 3444 tube tester. Shipping We have a retail location located in Easthampton MA. You are more than welcome to pickup your order in person. Our typical hours are Monday – Friday 9:00 AM to 5:00 PM but we do offer extended hours so call first! All new production tubes ship for free so we do not combine shipping on new production tubes. We still combine shipping with vintage tubes. All orders before 1:00 PM EST ship same-day. All orders shipped within 1 business day. Domestic & International buyers can choose USPS First Class Mail or USPS Priority Mail.USPS First Class Mail is our default shipping method. Other options available only by request. Typical transit times: Domestic USPS First Class Mail: 3-9 Days, includes trackingDomestic USPS Priority Mail: 1-3 Days, includes trackingInternational USPS First Class Mail: Typically 3-6 weeks but up to 3 months! – NO TRACKINGInternational USPS Priority Mail: 6-14 Days – Includes Tracking International Shipping Disclaimer International orders will be shipped by USPS First Class Mail International by default, which is the cheapest possible way and you do get what you pay for. This shipping service is very cost-effective and extremely safe, but you will not be able to track your package. It usually takes 3-6 weeks for a First Class Mail International package to arrive, but can take UP TO 3 MONTHS FOR DELIVERY DUE TO CUSTOMS, ESPECIALLY IN CERTAIN STRICT COUNTRIES LIKE RUSSIA, CHINA OR BRAZIL. We guarantee all of our shipments, but we do ask that our customers wait 90 days before we grant a full refund due to a lost package. We have shipped thousands of items internationally using First Class Mail and while we have had plenty take several months to arrive, we have had less than 10 actual lost packages. * Remember – You Have 6 Months of Coverage Through PayPal or your Credit Card company * DEPENDING ON YOUR COUNTRY’S POLICIES, YOU MAY BE RESPONSIBLE FOR IMPORT TAXES WHEN ORDERING OVERSEAS FROM US. WE ARE NOT RESPONSIBLE FOR ANY TAXES, DUTIES, OR CUSTOMS FEES.Guarantee & Returns All of our products are guaranteed unless otherwise stated. We do not accept returns on the subjective basis of sonic qualities. All items all guaranteed to be as described and free of any electrical or operational faults such as shorts, low test, microphonics, noise etc. Returns will be accepted for tubes that don’t test as described in most cases, but we reserve the right to refuse a return if the tube was not tested properly by the customer; We also reserve the right to refuse a return if it is clear the item was used improperly. For example-a tube installed in the wrong amplifier. We will not accept returns for any cosmetic issues such as crooked bottles, dirty glass, poor boxes etc, unless item condition differs from the description nor will we accept a return for buyers remorse. If you bought the wrong item, you may return it but we will charge a 15% restocking fee.Vintage & NOS tubes are guaranteed for 30 days from the date of purchase;New Production tubes are guaranteed for 90 days. About UsCome visit the only retail tube store in the USA! VIVA TUBES is your source for vintage vacuum tubes. Located in an appropriately rustic mill building in Easthampton MA. We share our building with a Recording Studio, Brewery, Practice Spaces and many other small businesses. . We carry everything from vintage audio tubes and new productions to HAM tubes. We also have a variety of vintage electronic parts as well as audio equipment and more! We have a vast inventory of thousands and thousands of tubes.What started as a hobby several years ago to fund my obsession with tube audio, VIVA TUBES has quickly grown into a full time business;We pride ourselves on our excellent customer service and great attention to testing and product detail. Shop with us and find out why the majority of our customers are repeat customers.WE ARE ALWAYS BUYING TUBES – LARGE OR SMALL LOTS – WE CAN ACCEPT SHIPMENTS OR MAKE AN APPOINTMENT TO VIEW LOCALLY – PLEASE CONTACT

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.

GE 6550A Power Vacuum Tube Pair Excellent JAPAN

General Electric 6550A power vacuum tubes, matched pair. Suitable for high-power audio amplifiers. We will send a product by SpeedPAK, DHL or EMS. Standard used condition with light wear. Does not apply.

GE 6550A NOS Tested Single Tube

These tubes were manufactured by MPD in Kentucky in the early 1990’s. There are very few new tubes left in the world. GE 6550A Tubes are the highest of quality and cannot be compared to any of the Chinese or Russian Tubes now for sale on the market.

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