Twenty Rows' 2012 Cabernet Sauvignon was harvested in mid-to-late October from appelations across Napa Valley including Mt. Veeder, Coombsville, and Oak Knoll. The Cabernet Sauvignon fruit also includes 4% Petite Verdot, 4% Cabernet Franc, and 2% Malbec.
Zener diode is a diode which is used in its break down region. The diode is kept reverse biased in a circuit, and so it does not allow current to pass until the voltage is greater than the breakdown voltage of the zener.
A germanium diode is a diode made using the element Germanium in stead of Silicon (Silicium). While both perform the same function (they only let current pass through them in one direction) there are some differences between the silicon and germanium variants. The most obvious is the forward bias voltage.