Tube Tester Amplifier Bias MA Version T4 T4 For 7591 7591A

Test EL84 6BQ5 EL34 KT88 7591 7591A 6P14 6L6 6CA7 6V6 5881 6550 KT66 KT100 KT120 Vacuum Tube Tester Amplifier Bias mA Version T4

Product Description: Three models available: T4_EL34 is test for EL34 KT88 6L6 6CA7 6V6 5881 6550 KT66 KT100 KT120 etc. T4_EL84 is test for 6BQ5 EL84 6P14 etc. T4_7591 is test for 7591 7591A etc. Model : T4 3.5mm Male Plug Copper used for excellent conductivity. Outstanding soldering taken in every adapter. Bakelite socket and gold pins for long life,Tough gold pins with a thick gold plating. The product measures the cathode current of the power tube for bias reading (at low voltage side of the tubes ). It can Get the reading direct from the current meter. It does not need any convert from mV to mA. It can be work with all kinds of multi meter (Digital meter or analog pointer meters) , at range of 100mA or above. Package Contents 1pcs T4 Tester 2pcs Bias Current Probes User Manual Turn off amplifier.Connect the product and multi meter. Remove the power tubes and Insert the power output tubes into the bias probe sockets. Then Insert bias meter probes into the tube sockets of the amplifier. Turn on power amp and let the tubes get warm about 5 minutes.Read the bias measurement. Move the switch from A to B to C to D.If the four reading is same.That's perfect! Payment We accept and PayPal. Please contact us if you have any question. Standard and Expedited International Shipping Once we received your payment , will be mailed to you. Terms of sales All It are brand-new,unused, tested,guaranteed. Best products at the lowest price to our customers. Providing high-quality products and satisfying service. About us Please contact us if you need any change your order, We promise to make every effort before it ships, We will sort out the iue with your purchases on highest priority, Provide you the best service, please treat the transaction fairly. Kindly not leave negative or neutral feedback, Please contact us to get a better solution, We will to work out a mutually agreeable solution with customers, During holiday ,please allow us to response you early week. Contact us If you need a large number of goods.Please contact us. We accept customer's own designs and OEM design orders Thanks for your support and cooperation We will continue to improve service quality and enhance product quality. Service time Our Office Hours Are : Start from 9:00 a.m. to 6:00 p.m. (GMT+8) of Monday to Saturday. Closed on Sunday and public holidays (China). We apologize for the late reply during the holidays and the time lag.

About shipping
Shipping and Packaging All items will be double checked and well packed before sending.Items will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

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Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

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If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.