ePanorama.net

All about electronics and circuit design

Tek TDS 220 scope teardown

This was a broken scope considered beyond worth to repair by service, but I got it working again… (white tape that holds jumper wire going to display connector). Thank you for service manuals in Internet. Google search and YouTube are repair hacker’s friend. Posted from WordPress for Android

GHOST security bug in Linux

As I expected the flow of security bugs continues this year. Now first serious open source bug disclosed this year following last year’s Heartbleed bug in OpenSSL, the Shellshock bug in Bash and the POODLE bug related to the the SSL v3 fall back issue. The GHOST vulnerability is a serious weakness in the Linux

Introduction to Hearing Aids

Introduction to Hearing Aids is a good introduction to technology inside hearing aids.  The two basic types of technology for hearing aids are analog and digital. Analog hearing aids process electrical sound in the analog domain; the more recent digital hearing aids process electrical sound in the digital domain. The earliest analog hearing aids simply