Notes on T-Bills and APY
Just a quick note on yields. We can purchase Short Term Treasury Bills. These are sold in weekly increments (4 week, 8 week, 26 week, 52 week). For a 4 week term, that is 28 days. A 365 day year can have 365/28 =13.03 periods per year. Each period provides a return amount. Here we show the math!
Read More
Winter Gas / Energy Use
Home Improvement Project: New Furnace! In cold months, we are saving nearly 50% on the Gas bill with a new high efficiency furnace!
See the chart for 30F months (think January), the use goes from 30 mBTU down to 15 MBTU. The only change was the new furnace. Half the gas bill, same nice warm house!
Read More
Tandy LT1400 – Power Supply Repairs
On a quest to connect to packet radio, I pull out my 1991 Tigertronics BayPac BP-1, plug it into the 1987 Tandy LT1400 laptop and Yaesu radio. The boot disk is already in the computer… Took a bit to locate the modem software. Flip the power switch…. and…. blank screen…
Read More
TrueNAS Drive Monitoring with S.M.A.R.T Scripts, MySQL and Grafana
In this article, we have TrueNas Core with a ZFS filesystem for network attached storage. We would like to have some warning and monitoring of the hard drives before they completely fail, a historical data collection feature, and a nice visual dashboard.
Read More
Restoring the Commodore 64 – Part 2
TLDR: Broken trace Under a ram chip, Bad Kernel Rom & oscillator IC, random jumper Dead Test Cartridge The dead test cartridge is exactly what it sounds like. You have a dead commodore 64 computer, plug in the cartridge, it runs a rom and program and tells you what the issue is. Remade versions of…
Read MoreNote: ElasticSearch, Kibana, FSCrawler on TrueNAS
When you finally realize that searching through decades of documents has become a challenge, it is time to acknowledge that you have reached a “big-data” stage. Now, you need some big data utilities to understand, index, search and find out where and what you’ve got. This process is a nightmare. Bits of instructions are scattered…
Read More