A few months ago I wrote of the difficulties I encountered when I tried to build Sinclair's Black Watch kit. The description of my doomed struggle with Sinclair's electric parts produced conciliatory letters from readers and a message from an M. Persky of Sinclair Radionics, Inc., in New York. M. Persky admitted that "in the initial run of kits of which unfortunately, yours was one, there were some wrinkles."

M. Persky said that anyone who complained would get a new kit and, if I cared to send the pieces, they'd send me an improved Black Watch that gave the date as well as time. I wrote back that I no longer had my Black Watch kit parts — the only pleasure I got from the entire investment and experience was throwing it away.