Description

tested In calibrated hickok 539c. minimun good tube 7750 (60%) and nos(new) tubes test at 12500 µmhos/siemens and 15 mA (100%) specs for e88CC is 12500 µmhos I don't know who the manufacturer of these pair of tubes is, they are branded Benco and it says they are made in England terms and Conditions Money back guarantee within 14 days if returned by customer. 1)Welcome to the store and purchase, if you have any question, please contact us first. We will reply you within 24 hours.(except weekends and holidays). 2)Our normal business hour is Monday through Friday 9 AM to 6 PM Colombian Time. All emails and orders will NOT be processed during weekends and holidays, orders will be dispatched only on Wednesdays. 3)We highly appreciate that you can contact us before you leave Negative feedback or Neutral feedback. We will offer help to solve your problems as fast as possible. If you have any issues with an item upon receiving it, please don't hesitate to contact us. We are here to help! If get here it means that you read the entire description and saw all the photos, have a nice day and thank you for shopping with us