SOVTEK 6550WE. All audio stock is from the very highly regarded Audio Laboratories of Kildare Terrace in Leeds. Phil Pimblott was my good friend and a renouned valve genius and this is his work stock that he held when he retired. All valves marked as used have been tested by him as good.

SOVTEK 6550WE. All audio stock is from the very highly regarded Audio Laboratories of Kildare Terrace in Leeds. Phil Pimblott was my good friend and a renouned valve genius and this is his work stock that he held when he retired. All valves marked as used have been tested by him as good.

Match Tested Pair of 6550 WE Sovtek Audio Receiver Guitar Power Vacuum Tubes Country of origin: Russia Production era: Estimate 1990s Date Codes: NA Model: 6550 WE Manufacturer: Sovtek Type: Power Plate type: gray vented with copper rods and grid radiators Filaments: standard Base type: octal 8 pin Spacers: two with alignment tabs Getter frame: goal post supported dual solid halos Getter flash: full top Glass: Clear Stencils: excellent Condition: excellent same construction Usage (estimate): minimal if any Quantity: 2 Please review the photos for more detail Test results: The tubes were burned in and tested on a THD audio power amplifier. Tests include noise, microphonics, stability, true high voltage and tone Strong balanced matched test results for Gm/bias: Gm ~5.4 with bias = 34 mA Gm ~5.2 with bias = 33 mA For Gm, the suggested minimum value is: 3.9 Shorts: None detected For testing, a calibrated Triplett 3444A tester was used Compatibility: Suitable for vintage tube-based equipment, ideal for use in audio amplifiers, power amps, and general tube equipment The tubes will be carefully packed to ensure safe shipping Estimated delivery time within the USA is 3 to 7 business days Standard shipping service is US Postal 1st class Shipping is combined when applicable Please feel free to contact us if you require any additional information

This is a set of 4 authentic Sovtek 6550-WE vacuum tubes. I am not sure if they are matched quad. Made in Russia. All are in fully working condition.

Match Tested Pair of 6550WE Sovtek Audio Receiver Guitar Power Vacuum Tubes Country of origin: Russia Production era: Estimate 1990s Date Codes: NA Model: 6550WE Manufacturer: Sovtek Type: Power Plate type: gray vented with copper rods and grid radiators Filaments: standard Base type: octal 8 pin Spacers: two with alignment tabs Getter frame: goal post supported dual solid halos Getter flash: full top Glass: Clear Stencils: excellent Condition: excellent same construction Usage (estimate): minimal if any Quantity: 2 Please review the photos for more detail Test results: The tubes were burned in and tested on a THD audio power amplifier. Tests include noise, microphonics, stability, true high voltage and tone Strong balanced matched test results for Gm/bias: Gm ~5.4 with bias = 34 mA Gm ~5.2 with bias = 33 mA For Gm, the suggested minimum value is: 3.9 Shorts: None detected For testing, a calibrated Triplett 3444A tester was used Compatibility: Suitable for vintage tube-based equipment, ideal for use in audio amplifiers, power amps, and general tube equipment The tubes will be carefully packed to ensure safe shipping Estimated delivery time within the USA is 3 to 7 business days Standard shipping service is US Postal 1st class Shipping is combined when applicable Please feel free to contact us if you require any additional information

AS FOUND, FROM RETIRED RADIO ENGINEERS WORKSHOP CLEARANCEHEATER CONTINUITY TESTED OK, OTHERWISE NOT TESTEDPostage and packing UK £5, in EU 14 GBP, 22 GBP Worldwide This includes Tracking I will always combine postage on multiple items where possibleAll buyers are encouraged to pay via Paypal. The description is as accurate as possible and packaging is always sufficient, see my feedback for evidence. However there may be the occasion when problems arise, in which case if the buyer is not happy with the purchase every effort will be made to resolve the dissatisfaction. Typical feed back:- You know a really great seller when things go wrong and he takes care of it.

Wir haben deinradio! Senden Sie uns eine Nachricht Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt 2x Sovtek 6550WE Röhre KT88 NOS OVP sehr selten Röhrenverstärker Bitte entnehmen Sie den genauen Zustand und Lieferumfang den Bildern. Die Röhren sind noch neu und in der OVP. Wir bieten eine Vielzahl an alten Bastel -und Sammelobjekten an.Bitte beachten Sie, dass aufgrund des Alters keine Garantien auf die technischen Funktionen gegeben werden können.The parts are very old, we dont give any guarantee on the technical function. Zahlung Versand Kombiversand nur bei Artikeln möglich, die am gleichen Tag gekauft werden. (aus einer Auktionsrunde) DIe angepasste Rechnung erhalten Sie dann nach Auktionsende. Aufwendiger Versand (klimaneutral) mit DHL Premium in 2-welliger Kartonage und aufwendiger Polsterung! Versand größtenteils plastikfrei, 80 Prozent des Versandmaterial aus recyceltem Altpapier bzw. Second-Hand Kartonagen. WORLDWIDE SHIPPING ON REQUEST! PLEASE ASK BEFORE YOU BUY! Links Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt Newsletter Verpassen Sie keine Angebote mehr! Wir informieren Sie über Angebote und Aktionen bequem per E-Mail. Newsletter abonnieren Kontakt Senden Sie uns eine Nachricht

AS FOUND, FROM RETIRED RADIO ENGINEERS WORKSHOP CLEARANCEHEATER CONTINUITY TESTED OK, OTHERWISE NOT TESTEDPostage and packing UK £5, in EU 14 GBP, 22 GBP Worldwide This includes Tracking I will always combine postage on multiple items where possibleAll buyers are encouraged to pay via Paypal. The description is as accurate as possible and packaging is always sufficient, see my feedback for evidence. However there may be the occasion when problems arise, in which case if the buyer is not happy with the purchase every effort will be made to resolve the dissatisfaction. Typical feed back:- You know a really great seller when things go wrong and he takes care of it.

AS FOUND, FROM RETIRED RADIO ENGINEERS WORKSHOP CLEARANCEHEATER CONTINUITY TESTED OK, OTHERWISE NOT TESTEDPostage and packing UK £5, in EU 14 GBP, 22 GBP Worldwide This includes Tracking I will always combine postage on multiple items where possibleAll buyers are encouraged to pay via Paypal. The description is as accurate as possible and packaging is always sufficient, see my feedback for evidence. However there may be the occasion when problems arise, in which case if the buyer is not happy with the purchase every effort will be made to resolve the dissatisfaction. Typical feed back:- You know a really great seller when things go wrong and he takes care of it.