![]() “There is always the possibility of aircraft being forced down or shot down with the ABK itself still in an undamaged or repairable condition. This set permits aircraft in which it is installed to identify itself as friendly.įrom a WWII Navy Radar Operator’s Manual: “The SCR-695 IFF Set, Mark III (BC-706, 765, 767, 958, 965, 966) Iband, 157-187 Mhz and G-Band, 200 Mhz is an airborne IFF radio equip when used in conjunction w/certain remote interrogating equipment such as ground or airborne interrogator-responder equipment or radar equipment. The radio destruct switch box is a 76+ year-old new old stock WWII relic, still in its original packaging. The cockpit-style alarm clock is by Trintec and features a U.S. This is not a definitive list by any means.These desk sets are hand-built by the craftsmen in our aircraft restoration hanger. Actually, you may modify this list in whatever way suits you. The clock mechanism was salvaged from an old sad looking and boring clock that someone had tossed into the trash. The clock was mechanically sound, as it just needed a battery. But the look of the clock was just boring. If you have an old analog clock in a drawer or closet, salvage the mechanism and give it new life. The big challenge will be to find an analog clock. You will probably find an analog wall clock or alarm clock there. If you can't salvage one, then Amazon or your local craft store sell them starting at about $6 per kit. For the paper plate clock faces you would want to purchase the short shaft or 1/2 inch shaft models. We used what we had stored in the garage from summer picnics. The Chinet brand offers a nice rigid and thick structure without the waxy finish. The non-wax surface may be your best option. You will have more flexibility in art supplies to use, especially if you use paints. This is where you have the most flexibility. What do you have available? Here are just some ideas of supplies to decorate your clock faces. If you are doing many clock faces as we did, then take a few minutes to get out your drill and a 5/16 inch drill bit. This can help save time as you can drill the center hole in many clock faces in just a matter of seconds.Traditional wind-up (keywound), mechanical, spring-driven alarm clockĪn alarm clock (or sometimes just an alarm) is a clock that is designed to alert an individual or group of individuals at a specified time. The primary function of these clocks is to awaken people from their night's sleep or short naps they are sometimes used for other reminders as well. Most use sound some use light or vibration. Some have sensors to identify when a person is in a light stage of sleep, in order to avoid waking someone who is deeply asleep, which causes tiredness, even if the person has had adequate sleep. To turn off the sound or light, a button or handle on the clock is pressed most clocks automatically turn off the alarm if left unattended long enough. A classic analog alarm clock has an extra hand or inset dial that is used to specify the time at which the alarm will ring. Alarm clocks are also used in mobile phones, watches, and computers. Many alarm clocks have radio receivers that can be set to start playing at specified times, and are known as clock radios. Some alarm clocks can set multiple alarms. A progressive alarm clock can have different alarms for different times (see next-generation alarms) and play music of the user's choice. Most modern televisions, computers, mobile phones and digital watches have alarm functions that turn on or sound alerts at a specific time. Traditional mechanical alarm clocks have one or two bells that ring by means of a mainspring that powers a gear to quickly move a hammer back and forth between the two bells or between the interior sides of a single bell. In some models, the metal cover at back of the clock itself also functions as the bell. In an electronically operated bell-style alarm clock, the bell is rung by an electromagnetic circuit and armature to turn the circuit on and off repeatedly. Digital ĭigital alarm clocks can make other noises.
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