Re: Alternative on Dash Clock Conversions

[Dodger7998@xxxxxxx]

really stretching my memory here, but would think that the value of the  
resistor would be 7 times the resistance of the clock, and that there  combined 
resistance would make the 8, and as far as the heat,,,,,I can not  believe that 
the power used by a clock would cause any amount of  heat,  surely there is 
some one on the list that has been to school since I  have that could clarify 
this
 
 
In a message dated 1/31/2009 10:15:39 A.M. Central Standard Time,  
pjlenn@xxxxxxxxx writes:


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
> > >  
> > > 
> > >  ----
> > > Please address private mail --  mail of interest  to  only one person 
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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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