Tom Verbeure
tom_verbeure@mastodon.social
<p>I love playing with FPGAs. There can never be enough LEDs. Hardware engineer at Nvidia, but my views here are my own. Also <span class="h-card" translate="no"><a href="https://mastodon.social/@tom_verbeure" class="u-url mention">@<span>tom_verbeure</span></a></span> you know where but I don’t post there anymore.</p>
Posts
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Post #4029952
The flea market TDS7104 booted up the first time I tried, with dim LCD screen, but failed with CMOS battery error the next time. You need to remove 29 screws to access the PC motherboard, but there’s a new battery now. After some Windows 2000 wrangling, the PC system is back to normal. The dim LCD was not because of faded CCFL backlight but because… the Windows gamma and brightness settings were wrong. I need to backup the HD and install an SSD, but the scope is functional again!
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Post #2038114
Polyphase Channelizers with Frequency Offset - a Bluetooth LE Example https://tomverbeure.github.io/2026/03/05/Polyphase-Channelizer-with-Offset.html
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Post #2038113
The Stunning Efficiency and Beauty of the Polyphase Channelizer https://tomverbeure.github.io/2026/02/16/Polyphase-Channelizer.html
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Post #941455
Repair of 2 Agilent 54831 Oscilloscopes https://tomverbeure.github.io/2026/03/28/Repair-of-Two-Agilent-54831-Oscilloscopes.html
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Post #851448
When first introduced, HP called their scopes “infinium”. Then some dumb marketing guy at Agilent decided that 3 i’s was not enough and renamed them to “infiniium”…
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Post #664023
Onto the second 54813B scope. This one immediately boots up to a BIOS screen. It has 512MB instead of 256MB of memory. But it doesn’t detect a HD. This makes sense… because when I open it up, it doesn’t have one. It also doesn’t have any of the IDE cables or the special adapter board to connect to the LS120 floppy drive. I think I’ll simply give up on the LS120 floppy drive, but 2 IDE cables and a compact flash adapter. That concludes the work for today.