I want to know the answer to the following question:
How many letters does the part numbering scheme begin with?
All the background I'm provided with is that "The Pro Electron standard, the European Electronic Component Manufacturers Association part numbering scheme, begins with two letters: the first gives the semiconductor type (A for germanium, B for silicon, and C for materials like GaAs); the second letter denotes the intended use (A for diode, C for general-purpose transistor, etc.).". Is that enough to answer the question?
Answer: yes