BeebMaster - I Want an Econet!

Later Master Series
Econet Interface (issue 1)

This is the more common type of Master Series Econet module, the later issue, which reinstates hardware collision detect circuitry. The board is the same size as the earlier version, but due to the additional components, it all looks fairly cramped.

This is issue 1 of the later Master Series board, although it appears identical to issue 2.