RARE Mullard EL84 6bq5 Km1 Tubes NOS/NIB MATCHED PAIR N709 Cv2975 E84L 7189
Item History & Price
| Reference Number: Avaluer:20594100 | Brand: Mullard |
| Type: Power Tubes |
Up for grabs is a MATCHED pair of Mullards EL84/6bq5 tubes. They are completely perfect in every way. NOS in their original boxes. Great intact labels. Date matched and current matched set. Km1 version with ring getters. As good as it get in a set of Mullards EL84 tubes and nearly impossible one find in this condition these days. Codes are Km1/B7A3 Km1/B7A4 Don’t miss these!!
Tubes have been verified on the Orange tester and have passed all the following testsHeater fi...lament test: Short circuitHeater filament test: Open circuitHeater filament test: Tolerance checkHeater cathode insulation: LeakageHeater cathode insulation: Short CircuitTests for heater current abnormalitiesAmplification factorVoltage gainPower gainScreen grid testMutual conductance testDual test for double triodesEmissionInter electrode leakageInter electrode short circuitFlash-over (arc detection, high voltage breakdown)Gas ionisation test
Please ask any questions or concerns and I will respond promptly. USA SHIPPING ONLY. Please check my other auctions for other rare and hard to find tubes that will be available in the coming weeks as I sell some of my large collection. All items will be very well packed and shipped the next day whenever possible. Although I DO NOT ACCEPT RETURNS because of the sensitive nature and personal tastes associated with vacuum tubes, I will certainly work with any buyer to address any problem that may occur such as a tube that arrives damaged in shipping etc. I require any buyer that encounters a problem to notify me within 72 HOURS after receipt of a pending issue. If as a buyer, you can not adhere to the sales terms of my listings I respectfully ask that you do not purchase tubes from me. Unless specifically stated in the listing and commonplace amongst the majority of tube sellers, I do not warranty or make any guarantees related to noise, hum or microphonics. As a courtesy, every tube I sell is cleaned and treated with Deoxit to remove 50+ years of corrosion and grime. In addition I can apply the Deoxit Gold protectant by request if the buyer wants it at no charge. This will provide a barrier against future corrosion and ensure the best electrical connection in your circuits.For Best Results DEOXIT Your Sockets!!FEEDBACK: I will leave excellent feedback for the buyer once I receive their feedback indicating they have received their item in good condition and are satisfied with the transaction and their buying experience.
Tubes have been verified on the Orange tester and have passed all the following testsHeater fi...lament test: Short circuitHeater filament test: Open circuitHeater filament test: Tolerance checkHeater cathode insulation: LeakageHeater cathode insulation: Short CircuitTests for heater current abnormalitiesAmplification factorVoltage gainPower gainScreen grid testMutual conductance testDual test for double triodesEmissionInter electrode leakageInter electrode short circuitFlash-over (arc detection, high voltage breakdown)Gas ionisation test
Please ask any questions or concerns and I will respond promptly. USA SHIPPING ONLY. Please check my other auctions for other rare and hard to find tubes that will be available in the coming weeks as I sell some of my large collection. All items will be very well packed and shipped the next day whenever possible. Although I DO NOT ACCEPT RETURNS because of the sensitive nature and personal tastes associated with vacuum tubes, I will certainly work with any buyer to address any problem that may occur such as a tube that arrives damaged in shipping etc. I require any buyer that encounters a problem to notify me within 72 HOURS after receipt of a pending issue. If as a buyer, you can not adhere to the sales terms of my listings I respectfully ask that you do not purchase tubes from me. Unless specifically stated in the listing and commonplace amongst the majority of tube sellers, I do not warranty or make any guarantees related to noise, hum or microphonics. As a courtesy, every tube I sell is cleaned and treated with Deoxit to remove 50+ years of corrosion and grime. In addition I can apply the Deoxit Gold protectant by request if the buyer wants it at no charge. This will provide a barrier against future corrosion and ensure the best electrical connection in your circuits.For Best Results DEOXIT Your Sockets!!FEEDBACK: I will leave excellent feedback for the buyer once I receive their feedback indicating they have received their item in good condition and are satisfied with the transaction and their buying experience.
