The Ford Barn

53RYDER · 08-16-2015, 08:15 AM

Got it! Thanks Mike!

Glenn

BILL WILLIAMSON · 08-16-2015, 11:51 AM

Quote:

Originally Posted by MrTube

I can kind of see why some would want the original setup, but at the same time the diode is infinitely more reliable and would you ever notice the difference?

I installed a solid state start relay on my 1933 fridge and I'm kinda sad I did because you don't hear the relay click everytime it starts. But, at the same time, it's probably more reliable.

It's apparent, Mr. Tube, that you live alone, also, & have "CATALOGED" every NORMAL "HOUSE NOISE" I can know that last funny noise, when the COFFEE"S finished--DRIP, PLOP!
Saw a coffee cup LOGO, "NOW JUST THINK OF ALL THE THINGS WE'LL GET DONE, TODAY"!---------The cup LIED!
Bill W.

MrTube · 08-16-2015, 04:23 PM

Quote:

Originally Posted by BILL WILLIAMSON

It's apparent, Mr. Tube, that you live alone, also, & have "CATALOGED" every NORMAL "HOUSE NOISE" I can know that last funny noise, when the COFFEE"S finished--DRIP, PLOP!
Saw a coffee cup LOGO, "NOW JUST THINK OF ALL THE THINGS WE'LL GET DONE, TODAY"!---------The cup LIED!
Bill W.

Actually, married with a 1 year old son.

BILL WILLIAMSON · 08-16-2015, 10:08 PM

Quote:

Originally Posted by MrTube

Actually, married with a 1 year old son.

Even @ 79, I remember those times, like, WHAT DO WE DO WITH THIS THING???---Like, ON THE JOB TRAINING!---- OR, I should have stayed single & gotten a Dog
Bill W.

MrTube · 08-16-2015, 10:52 PM

Quote:

Originally Posted by BILL WILLIAMSON

Even @ 79, I remember those times, like, WHAT DO WE DO WITH THIS THING???---Like, ON THE JOB TRAINING!---- OR, I should have stayed single & gotten a Dog
Bill W.

I didn't know you're 79?
1936.... A fantastic year for Monitor Top refrigerators.

Mike V. Florida · 08-16-2015, 11:42 PM

Sponsored Links (Register now to hide all advertisements)

Just one more thing. If you are going to convert a mechanical unit to diode, be sure you have a large heatsink to keep the diode "cool".

fiddlybits · 08-17-2015, 06:22 AM

Easiest way to think about it for laymen. The cutout is an electrical checkvalve. (So is a diode) they both let electricity flow from the generator to the battery but not from the battery to the generator. (Which makes the generator want to think it is a motor and use up your electricty)

BILL WILLIAMSON · 08-17-2015, 10:07 AM

Quote:

Originally Posted by fiddlybits

Easiest way to think about it for laymen. The cutout is an electrical checkvalve. (So is a diode) they both let electricity flow from the generator to the battery but not from the battery to the generator. (Which makes the generator want to think it is a motor and use up your electricty)

It's a GREAT help to understand "mysterious" stuff, even if just in laymens' terms. Chiefs' explanation of a COIL: "It takes SLOW MOVIN' 6 volt juice & changes it to a QUICK 10,000 volt juice, that'll CURL YO' HAIR"!---He added, "It WON'T HURT you, but it'll make you HURT yourself"!
Bill W.

MrTube · 08-17-2015, 10:42 AM

Quote:

Originally Posted by BILL WILLIAMSON

It's a GREAT help to understand "mysterious" stuff, even if just in laymens' terms. Chiefs' explanation of a COIL: "It takes SLOW MOVIN' 6 volt juice & changes it to a QUICK 10,000 volt juice, that'll CURL YO' HAIR"!---He added, "It WON'T HURT you, but it'll make you HURT yourself"!
Bill W.

It's hard to explain this way but it's probably easier to think of voltage as pressure and current as the diameter of the pipe you have.

Voltage doesn't necessarily mean faster.

marc hildebrant · 08-17-2015, 11:27 AM

Electrical current flows at a speed independent of the voltage. The dielectric constant of the material and the speed of light determine the speed that the electrons flow.

Marc

BILL WILLIAMSON · 08-17-2015, 11:44 AM

Chief wasn't very scientific, but had a lot of common sense & was a MASTER MECHANIC---He only went to the 8th grade & learned a lot through TRIAL & ERROR, starting out on Model T's!--He taught me SO MUCH!!
Bill W.

MrTube · 08-17-2015, 11:51 AM

Quote:

Originally Posted by marc hildebrant

Electrical current flows at a speed independent of the voltage. The dielectric constant of the material and the speed of light determine the speed that the electrons flow.

Marc

And it usually isn't in a straight line.
Electrons don't really flow through a wire like water through a pipe.

Willie Krash · 08-17-2015, 01:32 PM

Quote:

Originally Posted by MrTube

And it usually isn't in a straight line.
Electrons don't really flow through a wire like water through a pipe.

Particularly at higher frequency.

MrTube · 08-17-2015, 02:10 PM

Quote:

Originally Posted by Kurt in NJ

I converted my cutout 35 years ago with a used alternator diode, never any problems with it

There is an advantage to the diode cutout, I have hand crank started the car with a bad battery, a good brisk pull on the carnk makes almost 4 volts and has been enoughto start the engine with a battery having only 2volts

Quote:

Originally Posted by BILL WILLIAMSON

Diodes DO cause a small voltage loss, BUT it seems to be of NO CONSEQUENCE.
HOW/WHY a diode works used to boggle my mind, I even sawed one in half???--Found my "LAYMENS" answer, in an old ENCYCLOPEDIA!--Just found the name of the leg bone I BROKE, in there too!
Bill W.

I missed this.

A silicon diode drops 0.7 volts.
After you adjust your generator for the correct output I doubt you'd ever notice a difference including at slow hand cranking speeds, but someone would need to test to be sure.

BILL WILLIAMSON · 08-17-2015, 03:16 PM

Quote:

Originally Posted by Willie Krash

Particularly at higher frequency.

Well Willie,
I DO know what a "SOLID STATE SEMI-CONDUCTOR, WITH A NEGATIVE COEFFICIENT IS"----IMPRESSED??
Bill Watt

Cool Hand Lurker · 08-17-2015, 05:00 PM

Quote:

Originally Posted by marc hildebrant

Electrical current flows at a speed independent of the voltage. The dielectric constant of the material and the speed of light determine the speed that the electrons flow.

Marc

Yeah, what he said.....

BILL WILLIAMSON · 08-17-2015, 05:45 PM

Quote:

Originally Posted by forever4

Yeah, but why can't you keep the smoke in your shorts?

The PILOT light is still ON!
Bill W.

30ccpickup · 08-17-2015, 07:55 PM

Quote:

Originally Posted by Steve Plucker

What is your preference...the use of a diode within the cutout or the original assembled cutout in your Model A and why?

Thanks.

Pluck

My preference is the original cutout. It is a quality built part that is easily restored and once restored is reliable.

Kurt in NJ · 08-17-2015, 10:19 PM

Quote:

Originally Posted by Mike V. Florida

Just one more thing. If you are going to convert a mechanical unit to diode, be sure you have a large heatsink to keep the diode "cool".

All I did was drill a hole in the reley frame and press in a diode, has held up at amperages that test the generator to it's limit--as much as 18 amps for hours, 14-15 amps for years---just a used diode beat out of delco alt

MrTube · 08-18-2015, 08:04 AM

20 amps is a joke to a large silicon diode. You don't need a large heatsink.

This one is rated for 400 amps continuous and over 8000 amps surge.
http://www.digikey.com/product-detai...0DGI-ND/446850

Good luck getting even a NOS cutout to compete with a $3 diode in regards to longevity. Silicon diodes have been rock solid reliable since the early 1960s.

This is more than big enough for the "A" and costs $2.97
http://www.digikey.com/product-detai...6PBF-ND/811927

Smear a dab of white heatsink compound on it and bolt it to something like the frame or the cutout frame and bolt it down.

08-16-2015, 08:15 AM	#21
53RYDER Member Join Date: Jul 2015 Location: Brier, WA Posts: 82	Re: Diode vs. a non-diode cutout... Got it! Thanks Mike! Glenn

08-16-2015, 11:42 PM	#26
Mike V. Florida Senior Member Join Date: May 2010 Location: South Florida Posts: 14,054	Re: Diode vs. a non-diode cutout... Sponsored Links (Register now to hide all advertisements) Just one more thing. If you are going to convert a mechanical unit to diode, be sure you have a large heatsink to keep the diode "cool". __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II

08-17-2015, 06:22 AM	#27
fiddlybits Senior Member Join Date: Jan 2014 Location: N Illinois Posts: 447	Re: Diode vs. a non-diode cutout... Easiest way to think about it for laymen. The cutout is an electrical checkvalve. (So is a diode) they both let electricity flow from the generator to the battery but not from the battery to the generator. (Which makes the generator want to think it is a motor and use up your electricty)

08-17-2015, 11:27 AM	#30
marc hildebrant Senior Member Join Date: May 2010 Location: Cape Cod Posts: 1,128	Re: Diode vs. a non-diode cutout... Electrical current flows at a speed independent of the voltage. The dielectric constant of the material and the speed of light determine the speed that the electrons flow. Marc

08-17-2015, 11:44 AM	#31
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: Diode vs. a non-diode cutout... Chief wasn't very scientific, but had a lot of common sense & was a MASTER MECHANIC---He only went to the 8th grade & learned a lot through TRIAL & ERROR, starting out on Model T's!--He taught me SO MUCH!! Bill W. __________________ "THE ASSISTANT GURU OF STUFF"

08-18-2015, 08:04 AM	#40
MrTube Senior Member Join Date: Jun 2010 Location: New Jersey Posts: 1,471	Re: Diode vs. a non-diode cutout... 20 amps is a joke to a large silicon diode. You don't need a large heatsink. This one is rated for 400 amps continuous and over 8000 amps surge. http://www.digikey.com/product-detai...0DGI-ND/446850 Good luck getting even a NOS cutout to compete with a $3 diode in regards to longevity. Silicon diodes have been rock solid reliable since the early 1960s. This is more than big enough for the "A" and costs $2.97 http://www.digikey.com/product-detai...6PBF-ND/811927 Smear a dab of white heatsink compound on it and bolt it to something like the frame or the cutout frame and bolt it down.