T&L Publications

My car has a 6V system. The regulator is set at 6.6V The signal lite flasher operates spoatically at 7V and properly at 8V. Need a circuit fed by 6V to generate 8V. Jack

Thanks, tried both methods. Obtained o.1 A, and 19.3 V all AC calculated to 13.74 micro farads not the desired 100 or so microfarads needed. Jack,

How does one test a 105-126 MFD 110 V AC 60 Hz cap? Its off a very old drill press motor.

Vehicle detectors: Placed a 5' diam. coil (5 loops) 4-6" under pavement on front road. Object to have the
50 km/hr (31 mph) traffic turn the lights on a xmas tree. Need advice on what to look for in a vehicle
detector and what to avoid.

Would appreciate receiving a schematic for a 7 day OFF, 5 min. ON, recycling timer. 120 V input 120 V output.

Need fifteen 3K ,1% ,0.5W resistors. Happy to accommodate the kind person as requested.

The objective is to cut down on lost time waiting for the blade to stop. They are both inductive motors (3/4 and 1 HP). What size should the diodes be? What is the time issue with the winding heating up? Does putting a 30 ohm wire wound resistor in series with the diode; limiting the current to 8 A ...

A shot of DC into an AC motor will instantly stop the motor. Plan is to open one of the 240 V Ac lines and insert a NC, Sw in parallel with a diode. Opening the SW will send the DC shot to the motor; the regular motor SW is shut off at the same time. What should the PIV and A ratings of the two diod...

A coil can be layed only parallel to the road. ( An old road shoulder has
been cut away and is about to be replaced.) 14 ga solid Cu wrapped
around a 3/4" length of PVC pipe comes to mind. How many turns?
Length of PVC ? Suggestions? Help?[/b]

The city graciously cut a six foot swath across the road removing the pavement to install a pipe perfectly positioned for a coil to be placed -- what luck! A miniture spoting scope sitting on a dusty shelf plus having contacted Edmund Optics will easily handle the other direction. THANKS! gentlemen,...

Needs to detect moving vehicles at night at a distance of 200 feet. Outputs to a 555 Schmitt trigger. (Houskhold motion detector shy of 200 feet. LDR/photodiodes worked until the town put in street lights - the farmer put in a flood light and the snow arrived.) Just the detector is needed. (Ultimate...

Looking for ideas (schematic) on how to build an automatic , hands free, hammock rocker.The hammock is suspended between two trees - so a rocking chair with a hammock for a seat is a no and the kits (a stake and some rope are a no. Perhaps a rope attached to an eccentric wheel run by a motor -or -a ...

How does one determine the current drawn by a starting motor? No data
plate or name on the motor.

The second sentence should read Assuming the bendix is being engaged but solenoid contacts are fried.;
The the solenoid is sealled so I can't get at the contacts.
The starter motor brushes are a good length.

Solenoid (John Deer 175 lawn & garden tractor) clicks & sounds like bendix is engaging flywheel but starter motor won't turn (except on hot days or occassionally if the key is turned on & off several times) Assuming the bendix is being engaged but the starter motor contacts are fried; wo...