2068 Cassette Connection: Part II: Loading Tips

In the last Issue, I recommended removal of a couple capacitors in the SAVE circuitry of the TS2068. This provides a “brighter” save signal, which makes subsequent loading more reliable. This is all that is required to get many systems working “up to spec,” and makes the use of “fast-load” routines possible, even practical. On further research, however, I found that there can still be problems with some systems involving the LOAD portion of the computer-to-tape interface. In this article, I’ll discuss the load circuitry, and suggest a few minor changes that you can make to improve reliability if you’re still having trouble.