- Vacuum tube (Wikipedia)
A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. It takes the form of an evacuated tubular envelope of glass or sometimes metal containing electrodes connected to external connection pins.
- IMF Internal Meeting Predicts Greek ‘Disaster’, Threatens to Leave Troika (wikileaks.org)
Today, 2nd April 2016, WikiLeaks publishes the records of a 19 March 2016 teleconference between the top two IMF officials in charge of managing the Greek debt crisis - Poul Thomsen, the head of the IMF’s European Department, and Delia Velkouleskou, the IMF Mission Chief for Greece. The IMF anticipates a possible Greek default co-inciding with the United Kingdom’s referendum on whether it should leave the European Union (‘Brexit’).