[Farmall] Tachometer

[Jim Becker]

I don't put that in my pocket.  Fat Freddy did have a problem with his cat 
and stereo headphones though.

Jim Becker        jim.becker at verizon.net

----- Original Message ----- 
From: "Jim Rohr" <jimships at yahoo.com>
To: "'Farmall/IHC mailing list'" <farmall at lists.antique-tractor.com>
Sent: Monday, December 20, 2004 4:32 PM
Subject: RE: [Farmall] Tachometer


> Let's see how many are paying attention///
>
> Sorry for the errrrrrrrrrrrrr
>
> Jim
>
> -----Original Message-----
> From: Jim Rohr [mailto:jimships at yahoo.com]
> Sent: Monday, December 20, 2004 4:31 PM
> To: 'Farmall/IHC mailing list'
> Subject: RE: [Farmall] Tachometer
>
> Hi,
>
> I have used them all. I like reed tachs. They are simple, reliable and 
> work
> every time as long as you do not need to know the RPM to the last digit.
> There is two types...in the can types and variable stick slide types. I 
> use
> the stick slide types because I can read from 10 RPM to 10,000 RPM on a
> gauge set that would fit in my shit pocket. About 30 bucks total.
>
> The strobe types are cool as long as you can mark the item. So is 
> infrared.
> They are no touch and do not need any markers. Expensive...$200 used/
>
> Something to consider.
>
> Jim Rohr
>
> -----Original Message-----
> From: farmall-bounces at lists.antique-tractor.com
> [mailto:farmall-bounces at lists.antique-tractor.com] On Behalf Of E. John
> Puckett
> Sent: Monday, December 20, 2004 12:38 PM
> To: Farmall/IHC mailing list
> Subject: Re: [Farmall] Tachometer
>
> I don't think I made my self clear.  I didn't mean total number of times 
> it
> saw the blades pass, rather the frequency of the passage.  If it did that
> when using a 3 bladed prop you would have to divide the readout by 3.
>
> soffiler at myeastern.com wrote:
>
>> I don't know but strongly suspect it reads RPM directly.  If it just
>> counted the number of times the prop blade passed, you'd see nothing
>> but an ever-increasing number on the readout as it passed by over and
>> over and over.  That would be useless, unless you also had a stopwatch
>> and froze the count reading at some particular point, then did the
>> math.
>> I can't believe anyone would find something like that even remotely
>> useful.  Therefore my hunch it reads RPM directly.
>>
>> Steve O.
>>
>>
>> From: "E. John Puckett" <ejpuckett at centurytel.net>
>> To: Farmall/IHC mailing list
>> <farmall at lists.antique-tractor.com>
>> Subject: Re: [Farmall] Tachometer
>> Date: Mon, 20 Dec 2004 07:47:16 -0600
>>
>> ----- Original Message Follows -----
>>
>>>I've been looking for something similar, but everything I've found ran
>>>in the  $75 to $150 range.  Does it give a reading of the number of
>>>times the prop blade  passes, or is their a scale that changes the
>>>counts to rpm.  might have to do a  little calculation to get rpm from
>>>a tractor engine.
>>>
>>>Robert L. Holtzer wrote:
>>>
>>>> From time to time there has been discussion of setting engine idle,
>>>>etc.  Recently in a model airplane shop I saw a $25 tachometer that
>>>>had  an RPM range of 0 to 30,000.  It detected RPM from the propeller
>>>>--
>>>
>>>apparently something akin to a strobe.  It would probably
>>>
>>>>work off a  painted mark on a crank pulley.
>>>>
>>>>Anyone have any experience with this type of equipment?
>>>>
>>>>Bob Holtzer
>>
>> _______________________________________________
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>> http://www.antique-tractor.com/mailman/listinfo/farmall
>>
>>
>
> --
> John
> another one of them
> *.?-!.* cub owners
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