* Tube to Tube Tester
: Pneumatic leak detection of 0.75" to 1.25" tube in less than 60 seconds;
I can remember a day when our fathers would open the back of a television set, pull out a vacuum tube, and take it down to the nearest hardware store and plug it into a tube tester
. If it was bad, they simply bought a new tube, replaced the old one with the new one, and the television was as good as new.
PIRG also urged CPSC to enlarge the small parts tube tester
and to change the small-ball rule to include small round "objects." PIRG recommended that CPSC require manufacturers to label all toys, not just the packaging, with manufacturer identification.
For checking straight heat exchanger tubes where access is limited to one tube end, Expando developed the G-450 Air Activated Tube Tester
. A carbon steel or stainless-steel compression tube with vents along its length is inserted within the heat exchanger tube to be tested.