Category: Lighting

Letter Re: Low Power D.C. Lighting

James Wesley; Vlad wrote at the end of his piece, “Wish I had a better closing line but it is getting late and I need to go dig up a potentiometer for this lamp.”  Unfortunately, that isn’t going to do a lot of good.  Because an LED is a diode (the D in LED) it is pretty much on or off.  Dimmable LEDs are usually dimmed via Pulse-width Modulation — essentially, turning the LED on and off very quickly.  This doesn’t harm the LED, but it needs a particular circuit to do it.  Reducing the voltage will dim it — …


Letter Re: Lower Power DC Lighting

James Wesley: I am writing by the light of a post-apocalyptic reading lamp I just constructed. From a string of LED Christmas lights, I removed two sections of just three LEDs each. To each of these I attached in series a single 100 Ohm resistor from the parts bin at Radio Shack. A goose-neck work light provided a good reflector and glare control. I cut the plug off the other end and crimped on the connectors appropriate to my battery. The battery was salvaged from a defunct computer UPS. They are common to alarm systems and are not expensive new. …


Letter Re: Priority and Redundancy in Retreat Electric Power

In an attempt both to think through the issue and to stimulate other to do likewise, I present my personal analysis of our family’s current and future electric power usage. First some background: We live in a 2,400 square foot two-story home the suburbs of a southeastern city. Currently there are 3 of us, with one child away at school. Our summer temps are as high as 95F and winters can drop to the 20s. Currently is is between 50 and 80, which is great – windows often left open.   We have grid power, for which we pay $150-300/month. …


Letter Re: Garage Sale Prepping

This has been covered before, but I’d like to reinforce that use of garage sales for low-key cash purchases of essential survival items. In the past two months I’ve been making weekend trips to various community garage sales – spending an average of less than $20 per weekend. Most of the items cost me less than $10 each and I often only paid $1 or $2. The following is a partial list of the haul: 2 – Complete dissection kits with scalpels, forceps, etc 1 – Craftsman toolbox, steel, in good condition 1 – 19th Century wrench 1 – Drawknife …


Home Design Choices for the Prepper, by S.L.S.

When purchasing or building a home, there are no shortages of choices that must be made. From type of home and features needed to financial matters, literally hundreds of choices must be made. Though some decisions may not have a direct impact on your prepping (the color of the countertop will not matter in a SHTF scenario) many will have a direct impact on the sustainability of your home, your financial well being and thus, your ability to prep. This article’s purpose to introduce the new homeowner-to-be some of these choices and to give you some background on each so …


How it Started to Where I Am, by C.C.

Introductory biographical note: The author is 64 years old, father of nine children, BSAE Aeronautical Engineering, Ex-Army Infantry Training Officer (1970-1974), former Gym Trainer (1996-1997), Firefighter and EMT training and certification (2009-2010), Real Estate Broker/Owner Phase I I began realizing my vulnerability in 1998-1999, when Y2K-induced turmoil was a potential real possibility. I began, in all haste to find and prepare for the possible disaster that might come when the clock struck 12:00 midnight and 2000 would ring in. My first step was to find enough land that would be secure enough for my family and to design a place …


Three Letters Re: The Winter Salad

James, Just sending a note to remind your readers that the time to plan and plant a fall vegetable garden is right around the corner. Check out the USDA Hardiness Zone Maps for your area to find out what generally grows well in your area. Even better, check with your local Land Grant College Extension office for specific varieties as well as gardening tips and techniques for your area. In Oklahoma, mine is the Oklahoma Cooperative Extension Service. See their home page for the Fact Sheets. For example, see the Fact Sheet for Fall Gardening. Here is a quote from …


Living Like TEOTWAWKI Could Come at Any Time, by Mrs. C.J.

If you even so much as glance at the news or if you’re like me and check out The Drudge Report every morning, you can’t help but realize the world is becoming more and more uncertain. It seems that anything could happen at the drop of a hat and without little, if any, fore-warning. Volcanoes, earthquakes, tornadoes, and floods seem to be changing or taking the lives of unsuspecting people almost daily. The threat of nuclear warfare is always just beyond the horizon. If we ever experience an EMP, we could be without power and [utility-supplied] water for months. Most …


Letter Re: You May Not Need to Buy New 12 Volt Batteries

Jim: The 12 volt DC lead-acid batteries employed in most readers’ vehicles, power storage systems and backup supply systems are expensive, have finite life spans and are a critical link in the timely operation of equipment required to respond to short term and long term grid-down situations. Aged batteries become unreliable, but are difficult to keep in a state of readiness and when deemed “spent” their replacement puts a drain on already limited financial resources. Most people have battery chargers and the know-how to use them in an effort to keep older – or infrequently used – batteries in a …


Suburban Survival, by The Suburban 10

I am a public school teacher with five kids and one income. There is little in the way of extra cash to protect the family, but I will do my best to prepare for TEOTWAWKI. If you want to plan well; plan as if it was a lesson plan and you are going to teach it to a class. My class is my family the the goal being not to get anyone panicked (Refer to # 9 below). Having a receptive audience is difficult, because of what I deem…complacent comforts. These are built into the core and routine of our …


Letter Re: A True TEOTWAWKI Flashlight

Hi Jim, I just heard about this, and although expensive it sounds like the perfect long term TEOTWAWKI light: The 5.11 Tactical ‘light for life’. It is a Capacitor/LED flashlight. Here are the basic specifications: 90 second recharge time 12 VDC recharging 2 hour run time (step down 90/60 lumen – 1 hour each) 270 lumen peak (90 normal) 135 year life span 100 yard throw Thanks, – Greg W.


Four Letters Re: Survival Fire Safety

Sir, Mr. F. has written a very good article on a subject often neglected by many. As a fire service professional working for one of the largest municipal agencies in the country, I must warn against the use of candles whenever possible. Paranoid? Not after seeing burned up children, loss of property, etc. If you must, please place them well away from any combustible materials, and never carry one when lit. – SplitHoof. JWR Replies: I generally discourage the use of candles, but if and when they are used, my advice is to: 1.) Never let them burn unattended, and …


Three Letters Re: Some Real Life Battery Data

Dear Jim, I have some comments on the comments regarding batteries: Nickel Iron (Ni-Fe) batteries do indeed have very long shelf and operating lives. But they also have some significant downsides. Similar to NiMH cells (they are not the same) they have a very high self-discharge rate. In some cases approaching 40% per month. If you have a large solar array that is always making excess power, you are all set. But if you are charging with a generator, and have a large bank to keep power available for extended periods, you will waste a lot of the generator’s output …


Letter Re: A Shortage of Mantles for Aladdin Kerosene Lamps

Dear Jim, There is new info on the Aladdin Lox-on mantle shortage that was mentioned in SurvivalBlog. The new post on the Aladdin site is dated February 10, 2010. It indicates that there are still a number of issues to overcome before production can begin. According to Aladdin’s web site pre-production is possible at the end of February with production runs in March and deliveries in April. I hope they have solved their issues and can get this important component of their wonderful kerosene lamps back on the shelves. Thanks for getting this news to those who need to know. …


Letter Re: Some Real Life Battery Data

Jim, I have been following with interest over the last several days this thread on batteries and feel I have some information to share. To begin with, the only solution to a long term lead-acid battery bank is to make your own cells. Lead has a perpetual shelf life and oxidizes very little over time if protected. Contrary to the confusion established by the battery manufacturer cartels, both plates begin as simply pure lead (Pb). It is only after the initial charge is applied that the positive plate changes chemically due to the sulfur ion action. While home made cells …