Categories audio Tube I hadn’t seen before Post author By Isaac Post date 09/01/2021 No Comments on Tube I hadn’t seen before ← My amplifier → New Tubes! Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.