Home » Public Forums » GMCnet » [GMCnet] Buzz Box as standalone power supply?
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292398 is a reply to message #292394] |
Thu, 17 December 2015 20:03   |
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fitzmorrispr
Messages: 137
Registered: February 2013
Location: Los Angeles
Karma: 0
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Senior Member |
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Well, i heard tell that the buzz box will boil my batteries, and was
worried that leaving it plugged in overnight to run the furnace would be
enough to do it.
On Thu, Dec 17, 2015 at 17:47 James Hupy wrote:
> No. Not a good idea. The batteries provide a buffer for the Buzz Box. I
> suppose a resistance would work also. Why would you want to remove the
> batteries from the circuit?
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
> On Dec 17, 2015 5:31 PM, "Patrick Fitzmorris"
> wrote:
>
>> Hi guys. Was just wanting to know if i would be OK to disconnect the
>> batteries from the buzz box, and just use it to run the lights and the
>> furnace directly (especially the furnace)
>>
>> What do you think?
>> _______________________________________________
>> GMCnet mailing list
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The Greatfruit: 1973, 26', Canyon Lands or Painted Desert, in Pineapple Yellow
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292399 is a reply to message #292398] |
Thu, 17 December 2015 20:09 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Overnight would be all right. Long periods like weeks on end definitely are
not recommended.
Jim Hupy
On Dec 17, 2015 6:04 PM, "Patrick Fitzmorris"
wrote:
> Well, i heard tell that the buzz box will boil my batteries, and was
> worried that leaving it plugged in overnight to run the furnace would be
> enough to do it.
> On Thu, Dec 17, 2015 at 17:47 James Hupy wrote:
>
>> No. Not a good idea. The batteries provide a buffer for the Buzz Box. I
>> suppose a resistance would work also. Why would you want to remove the
>> batteries from the circuit?
>> Jim Hupy
>> Salem, Or
>> 78 GMC ROYALE 403
>> On Dec 17, 2015 5:31 PM, "Patrick Fitzmorris"
>> wrote:
>>
>>> Hi guys. Was just wanting to know if i would be OK to disconnect the
>>> batteries from the buzz box, and just use it to run the lights and the
>>> furnace directly (especially the furnace)
>>>
>>> What do you think?
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292400 is a reply to message #292399] |
Thu, 17 December 2015 20:18 |
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fitzmorrispr
Messages: 137
Registered: February 2013
Location: Los Angeles
Karma: 0
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Senior Member |
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Oh good!
Now i will wake up in the mornings with a warm nose!
Thanks for the help.
On Thu, Dec 17, 2015 at 18:10 James Hupy wrote:
> Overnight would be all right. Long periods like weeks on end definitely are
> not recommended.
> Jim Hupy
> On Dec 17, 2015 6:04 PM, "Patrick Fitzmorris"
> wrote:
>
>> Well, i heard tell that the buzz box will boil my batteries, and was
>> worried that leaving it plugged in overnight to run the furnace would be
>> enough to do it.
>> On Thu, Dec 17, 2015 at 17:47 James Hupy wrote:
>>
>>> No. Not a good idea. The batteries provide a buffer for the Buzz Box. I
>>> suppose a resistance would work also. Why would you want to remove the
>>> batteries from the circuit?
>>> Jim Hupy
>>> Salem, Or
>>> 78 GMC ROYALE 403
>>> On Dec 17, 2015 5:31 PM, "Patrick Fitzmorris"
>>> wrote:
>>>
>>>> Hi guys. Was just wanting to know if i would be OK to disconnect the
>>>> batteries from the buzz box, and just use it to run the lights and
> the
>>>> furnace directly (especially the furnace)
>>>>
>>>> What do you think?
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
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The Greatfruit: 1973, 26', Canyon Lands or Painted Desert, in Pineapple Yellow
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292420 is a reply to message #292392] |
Fri, 18 December 2015 09:16 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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My (Norris upfit) coach came with a battery disconnect switch for the house battery and a solar setup to charge it safely. It initially had a Sola 12v supply, which I replaced with a Progressive Dynamics supply. The Sola was 'brute force' using a constant voltage (tuned) transformer, the PD is a switching supply. I've left it powered with the battery off for roughly four years without problems with either supply. I see no good reason to think there would be a problem. The failure modes on both types will pretty much always lead to opening the primary fuse, which of course removes an concern for the connected equipment.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292421 is a reply to message #292392] |
Fri, 18 December 2015 09:21 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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What Jim said. The problem is a bit counterintuitive. The buzz box runs in the mid to upper 13V range, which will charge the house, but not to full finishing charge. Once at that point they need to be taken up to the 14.2 range. Then charge shut off until voltage drops to a point where charging resumes. The newer Progressive and IOTA type units do this with accuracy automatically. One of the few cases where aftermarket is better than OEM simply due to electronic tech advancements over so many years.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292423 is a reply to message #292392] |
Fri, 18 December 2015 09:28 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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John, I read the initial query as would it matter to run the house stuff off the 12v supply without the battery. I don't see any reason why it would matter. If you exceeded the supply ability (not likely) you'd see a voltage drop or a stalled supply, based on the supply design. However, if you're using the battery to make up the current need, you're going to flatten it eventually. Better to keep the current draw within the limits of whatever supply you're using. All I've seen are fairly robust, 40 Amps and up.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292445 is a reply to message #292423] |
Fri, 18 December 2015 17:24 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Senior Member |
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My advice would be to bite the small bullet and purchase a modern PD, Iota, or Xantex converter. Then, you would never have to worry about it again. The buzz box will make a great bench power supply (add a meter) and your concept of bypassing the battery will work. But. The one time you forget....
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292464 is a reply to message #292445] |
Fri, 18 December 2015 21:39 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Tom,
Me too!
PD 9245: http://www.progressivedyn.com/rv_converter_pd9245c_2.html
Charge Wizard Remote Pendant: http://www.progressivedyn.com/rv_converter_pd9245c_2.html
(http://www.ebay.com/itm/Progressive-Dynamics-45-Amp-RV-Converter-Charger-W-Charge-Wizard-PD9245C-/121643522998?hash=item1c5284dbb6:
g:elgAAMXQfvlSoNAH&vxp=mtr)
Regards,
Rob M.
The Pedantic Mechanic
-----Original Message-----
From: Thomas Phipps
My advice would be to bite the small bullet and purchase a modern PD, Iota, or Xantex converter. Then, you would never have to
worry about it again.
The buzz box will make a great bench power supply (add a meter) and your concept of bypassing the battery will work. But. The one
time you forget....
Tom, MS II
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292471 is a reply to message #292464] |
Sat, 19 December 2015 04:29 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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For what it's worth. I had two buzz boxes of which I wanted one to use as
a 12v power supply. When I checked the output voltage from a 76 Palmbeach
I registered 48 volts. checked the buzz box out of a 78 Royal and it
registered 25 volts and would trip my 15 amp breaker after one minute.
Scraped both of them:-( I have limited capabilities of electrical things
and this was one I did not want to pursue.
On Fri, Dec 18, 2015 at 8:39 PM, Robert Mueller
wrote:
> Tom,
>
> Me too!
>
> PD 9245: http://www.progressivedyn.com/rv_converter_pd9245c_2.html
>
> Charge Wizard Remote Pendant:
> http://www.progressivedyn.com/rv_converter_pd9245c_2.html
>
> (
> http://www.ebay.com/itm/Progressive-Dynamics-45-Amp-RV-Converter-Charger-W-Charge-Wizard-PD9245C-/121643522998?hash=item1c5284dbb6
> :
> g:elgAAMXQfvlSoNAH&vxp=mtr)
>
> Regards,
> Rob M.
> The Pedantic Mechanic
>
> -----Original Message-----
> From: Thomas Phipps
>
> My advice would be to bite the small bullet and purchase a modern PD,
> Iota, or Xantex converter. Then, you would never have to
> worry about it again.
> The buzz box will make a great bench power supply (add a meter) and your
> concept of bypassing the battery will work. But. The one
> time you forget....
> Tom, MS II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292472 is a reply to message #292464] |
Sat, 19 December 2015 05:42 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Yep, me too
http://www.gmcmhphotos.com/photos/buzz-box-converter-problems-and-replacement/p17531.html
This is working
With a combiner
On Friday, December 18, 2015, Robert Mueller
wrote:
> Tom,
>
> Me too!
>
> PD 9245: http://www.progressivedyn.com/rv_converter_pd9245c_2.html
>
> Charge Wizard Remote Pendant:
> http://www.progressivedyn.com/rv_converter_pd9245c_2.html
>
> (
> http://www.ebay.com/itm/Progressive-Dynamics-45-Amp-RV-Converter-Charger-W-Charge-Wizard-PD9245C-/121643522998?hash=item1c5284dbb6
> :
> g:elgAAMXQfvlSoNAH&vxp=mtr)
>
> Regards,
> Rob M.
> The Pedantic Mechanic
>
> -----Original Message-----
> From: Thomas Phipps
>
> My advice would be to bite the small bullet and purchase a modern PD,
> Iota, or Xantex converter. Then, you would never have to
> worry about it again.
> The buzz box will make a great bench power supply (add a meter) and your
> concept of bypassing the battery will work. But. The one
> time you forget....
> Tom, MS II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292477 is a reply to message #292392] |
Sat, 19 December 2015 10:17 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Since it's a resonant circuit, the battery acts as a large filter to stabilize the circuit and smooth out the pulsed DC output. Without it, the waveform, which should be flat line DC with a real PSU, is some other pulsed form and probably unregulated It's 15 deg out but at some point i'll power up a Buzz box and try to get a capture on the scope unterminated and with a battery across it to solve my curiosity on this 60s tech wonder. And get voltage reading with a Fluke and from the scope to see the RMS effect on numbers.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Buzz Box as standalone power supply? [message #292494 is a reply to message #292392] |
Sat, 19 December 2015 13:02 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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My Sola shows something around 13 and a half. Ripple was about half a volt, I hung about a third of a farad across it and it smoothed out nicely. It has a resistor across the output, looks like about 1.2K, which probably cleans up the no load output considerably. The PD stuff shows lower ripple, but when you look closely at it, it's at switch speed. Somewhere around 150KHz if memory serves. Hanging a .1 across the filter caps cleans it up if there isn't already one there.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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