The Chronology of PT/35(b): 3 September 1990

Some time prior to 3 September 1990

In Williamson’s memo to the SIO dated 3/9/90 he summarised the various enquiries
that had been conducted in relation to the timer fragment, including the visit to Washington on 22 June 1990 and the link to the timing device.

He records a detailed description of the timing device, then lists the operating components displayed on the printed circuit board.

Dimension of the quartz

Dimension of the quartz

It is apparent that the various details he lists relating to each of the components must have come from enquiries conducted after 22 June 1990 but before the date of the memo.

He lists details of the manufacturer of the Nymph Quartz crystal, the integrated circuit boards and the relay switch.

Advertisements
This entry was posted in Chronology, COMPONA, MST13, NYMPH, PT/35(b). Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s