Try to search TQWT , it's seems similar .
Voight Pipe probably was the first speaker like a TQWT .
TQWT has at the end of the line a reflex tube-duct , Voight Pipe no (like this ...).
For many years an English company called Castle made TQWT with open end or with thin opening end .
Sorry for my English ...
Voight Pipe probably was the first speaker like a TQWT .
TQWT has at the end of the line a reflex tube-duct , Voight Pipe no (like this ...).
For many years an English company called Castle made TQWT with open end or with thin opening end .
Sorry for my English ...
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.