package: engpron [closed]

Question

Background: engpron gives a rendition of the phonetic symbols used in Dr.Daniel Jones: ENGLISH PRONOUNCING DICTIONARY.

Native English speakers frequently suffer the pain of not knowing how to spell words they know so well, those who learn English as a foreign language frequently have the problem of not knowing how to pronounce a word they see written - never the twain shall meet! - and that's where the international phonetic transcription may come in handy.

To the point: the engpron package, the author being French, uses the £ sign (pound sign) to prefix the characters in its alphabet, but of course the various English keyboards don't provide a key for it.

MS Windows allows foreign keyboards to be set up and, miraculously, if I switch to the French keyboard and press the key for the pound sign (which is the shifted version of the }] key) engpron will correctly produce the intended characters.

I would prefer not having to switch between French and English keyboards and wonder if there is a workaround. Not sure that it's all that relevant,

Question: In short the is "how to produce the pound sign on an English keyboard ?"

but here is a MWE (minimal working example) ...

\documentclass[A4paper]{book}
%Begin PREAMBLE
%my commands
%packages
\usepackage{engpron}
%OTHER:
%End PREAMBLE
\begin{document}
%the pound signs produced with the 'French' keyboard switch
£a
£d
\end{document}