Hydraulic ram pumps and Sling Pumps

Well Water Level and TDS SensorQuantityParts ListDescription1 Northern Electric Style G3 Telephone Handset with ear and mouth covers1 HHMR-80V(U-1) Receiver Unit, Diode must be Removed (clip it off if necessary)Other possible part numbers (1182, ?)241111/4" Long Connecting Screws for the above Receiver. These will be used to mount and connect the circuit board to thereceiver unit. If you have an older reciever unit, 1/4" screws will already be on the reciever. If however you have anewer unit, 1/4" screws will have to be obtained since the included 1/8" screws are not long enough.#12 lock washers to improve the connection between the receiver and prevent shorts on the foil side of the circuitboard.Momentary On Push Button Switch (i.e.. push to talk switch, the smaller the better) The quality of this switch isessential since it is the one moving part in the entire unit.100' (or more) 24 gauge multi-stranded or braided speaker wire (flexibility, size and durability are essentialconsiderations)Water Sensor Printed Circuit Board (make it if you have the resources, skills and equipment, or order it directly fromus. Mask information is included below if you choose to make your own circuit board)1 TLC 555 Timer1 10K Ohm Resistor (brown-black-orange) 1/4 or 1/8th watt1 1K Ohm Resistor (brown-black-red) 1/4 watt1 2.2K Ohm Resistor (red-red-red) 1/4 or 1/8th watt2 .1uF capacitor1 1 foot black stranded internal connecting wire1 1 foot red stranded internal connecting wire1 9V Battery Connector1 9V Alkaline BatteryTub and Tile Silicone Sealant1 Wooden Wire holder shaped as pictured below made to fit the back side of the telephone hand set.3 General Purpose Elastic Bands1 Round Rock 1"Step by Step Building Instructions1. Printed Circuit Board Preparationshttp://www.pbv.thunder-bay.on.ca/WellSensor.html (2 of 12) [1/13/2005 12:45:27 PM]