Warning: Last items in stock!
Please consult THIS CHART to determine the outside diameter measurement for your valves, please advise the size or the number of your valves when ordering e.g KT88 and we will send the correct sized damper rings.
Here is the chart url please paste it into your browser http://tubedata.milbert.com/
No customer questions for the moment.
The rings are easy to fit, and fit well. The key to success is to get the rings in the correct position on the valves. Don't place them to restrict heat flow. Once you find the 'sweet spots', the improvement in sound quality far exceeds their cost. And with their low cost, you'd be daft not to try them. I'm not taking them off.