[AMRadio] Residule Magnatism

2006-09-16 Thread John Coleman ARS WA5BXO
In the cannon laser jet SX series printers released as HP Laser Jet II, and other brands as well, there is a solenoid device which releases a clutch which then allows the paper pickup rollers to move paper through the printer. These devices have a felt pad between the armature and the pole piece w

Re: [AMRadio] Dow Key

2006-09-16 Thread k0ng
Demagnitize the solenoid. Probably had DC applied at some time. Couldnt hurt. Good luck es 73, Charlie, K0NG .. __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.

Re: [AMRadio] Dow Key

2006-09-16 Thread Rick Brashear
Thanks Mike the Mod-U-Lator for the input. Thanks Mike for the tape idea. I tried the piece of cellophane tape and the relay buzzed way too much, so I moved on to other ideas. What I finally found was a brass washer out of place on the back of the coil where it attaches to the frame. It see

Re: [AMRadio] Dow Key

2006-09-16 Thread Mike Sawyer
Although that is a good place to look, I think 15 seconds is pretty long for residual magnetism to hang on. What I have found and maybe the case with your relay is the 'lid' that keeps the solenoid in place is easily bent. There may be a deformation or something there abouts that would prevent i

Re: [AMRadio] Dow Key

2006-09-16 Thread Rick Brashear
Sounds right to me, Mike. Thanks, I'll give it a try. Rick It's name is " residual magnetism" __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: htt

Re: [AMRadio] Dow Key

2006-09-16 Thread K4XM, Mike Dorworth
> Okay... maybe I missed something the day they taught magnetism. I have > a Dow Key that sometimes stays energized with the source completely > removed. Not every time but sometimes. It has a 115 vac coil and > nothing else. No capacitor across it, no nothing. It's as if the coil > is acting

[AMRadio] Dow Key

2006-09-16 Thread Rick Brashear
Okay... maybe I missed something the day they taught magnetism. I have a Dow Key that sometimes stays energized with the source completely removed. Not every time but sometimes. It has a 115 vac coil and nothing else. No capacitor across it, no nothing. It's as if the coil is acting as a c

[AMRadio] Test Gear List Online

2006-09-16 Thread Don Merz
For those times when you couldn't resist the 5-buck piece of test gear at a hamfest, but have no idea what it is and/or never heard of the manufacturer, here's a good resource: http://www.slack.com/temodel.html 73, Don Merz, N3RHT __ AM