Nice 60's vintage genuine British made STC 3B/240M CV2214 triode amplifier tubes in the original boxes. All of them are in the original STC cartons and are tested and guaranteed. The price is PER TUBE. Matched pairs are available if you order in multiples of 2. This item is shipped from Britain, in North America or Asia please allow 2 to 3 weeks for delivery.
3B/240M is a high gain, high transconductance triode output tube that can generate 37 watts of output with a mere 325 volts on the anode. For more information, see data sheet :http://tubezone.net/pdf/3b240m.pdf