RE: Alternative on Dash Clock Conversions

[Paul Lennemann <pjlenn@xxxxxxxxx>]

That's what I was trying to get to with the father-in-law.  How do you 
calculate the value of the resistor needed?  But I couldn't quite get 
him to give me a straight answer.  So I looked around a little in some 
of my old stuff and found a slide type Ohm's Law calculator.  It will 
give me the value of the resistor if I know the voltage (12) and how 
many milliamperes the clock will draw.  So, would you then multiply the 
value it gives you for the resistor x's 8 as discussed in the previous 
post?  I don't know.  Probably just easier to grab a handful of 
resistors and a voltmeter and experiment a little.  If you used a higher 
wattage resistor it might take care of the heat issue.  A heat sink 
would probably make everything last longer. 

Paul L.
'63 Sport Fury
440/727
http://www.1962to1965mopar.ornocar.org/ml-lennemann63.html

Dodger7998@xxxxxxx wrote:
> 
> 
> It has been a long time since I worked with modern electronics,,,,,(tube 
>  
> type portable radios in junior high) but I would think that all you 
> would have  
> to do is put a resistor in line with the clock to reduce the voltage
>  
>  
> In a message dated 1/30/2009 7:59:26 P.M. Central Standard Time,  
> pjlenn@xxxxxxxxx writes:
> 
> 
> I  tried to get a straight answer on this question out of my 
> father-in-law  who has a Phd. in Physics but I didn't quite get there.  
> What I was  able to come up with though was the thought that you could 
> go 
> to Radio  Shack and get a solid state voltage regulator.  This should be 
> 
> very  inexpensive.  You could get one that would either knock the 
> voltage  
> down from 12v - 1.5v or one that would go from 5v - 1.5v tapping into  
> the voltage supply coming out of the instrument voltage regulator.   
> What 
> I did get out of the father-in-law was that you just figure it as a  
> straight ratio.  12/1.5 = 8 so you would get a voltage regulator that  
> would reduce the voltage by a factor of 8.  Or 5/1.5= 3.33  Does  this 
> help?
> 
> Paul L.
> '63 Sport  Fury
> 440/727
> http://www.1962to1965mopar.ornocar.org/ml-lennemann63.html
> 
> Jeff  Adams wrote:
> > 
> > The parts at Radio Shack are dirt cheap. When I  converted my dash 
> > cluster regulator I had $16 in everything,  including 3 rolls of wire.
> > Dodger7998@xxxxxxx wrote:
> > >  
> > > 
> > > yes it could be done,,,,,,,guess that I am  marching to a different  
> > > drum 
> > > 
> > > thou
> >  > gh, having a working clock in my 62-65 is of little importance to  me,  
> > > and 
> > > would much rather spend that monies  toward something else that would be 
> > > 
> > > more  
> > >  noticeable to the general public, or towards performance, however if you 
> > >  
>  
> > > 
> > > have  
> > > unlimited funds to spend  on the car ,,,,,,,, go for it 
> > >  
> > >  
> >  > In a message dated 1/30/2009 9:08:25 A.M. Central Standard Time,   
> > > ledman_70@xxxxxxxxxxx writes:
> > > 
> > >  
> > > I've  thought about this before, but since we have been  able to use a 
> > > small  Radio Shack voltage regulator to  replace the regualtor in our 
> > > gauge  clusters, why can't we  just wire a small regulator/resistor into 
> > > 
> > > a 
> > >  battery  operated clock??? They just run on one 1.5 volt battery. Does  
> > > this sound  feasible to anyone?
> > > 
> > >  spigot2039@xxxxxxxxxxx wrote:
> > > > 
> > > > Some   years back it was reported here by a member that he went to a 
> > >  > craft 
> > > >  shop and bought craft-oriented clock guts,  the kind that uses one AA 
> > > >  battery. He retrofitted  that mechanism into his Mopar's clock and it 
> > > >  worked.  The only maintenance was replacing the AA battery once a year.
> > >  >  
> > > > Gary H. 
> > > 
> > > 
> >  > 
> > > Jeff Adams
> > > 64  Polara
> > >  
> > > 
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> > > cemailfooterNO62)
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> > >  [Non-text portions of this message have been removed]
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> > 
> > Jeff Adams
> > 64  Polara
> 
> 
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> 
> 
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----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.