Takatsuki Electric released the TA-300B in 2010 after the absence of new domestically produced audio vacuum tubes for 35 years. The TA-274B rectifier tube is our second made-in-Japan audio vacuum tube we developed by maximizing our technologies and knowhow accumulated in the creation of the 300B.

The TA-274B delivers the ultimate vacuum tube quality that only Takatsuki Electric, the one and only vacuum tube manufacturer in Japan, can offer.
 
Tubes from new will continue to improve sonically for 150 hours and reach optimum performance at 250 hours.