[NJARC] plastic battery tubes

[Robert Bennett]

John -
            About 20 batteries would fit a 48” tube. The math would make it 30 volts. Slightly more if the batteries are new, so figure 32-33 volts. 

Bob Bennett
Just full of absolutely useless information.

On Sep 15, 2016, at 6:04 PM, oldradio at comcast.net wrote:

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> 
> _________________________________________________________
> Hi Bill,
> 
> If after you split them, hit them with some heat (hairblower) and put a band around them, slightly smaller than a D battery.  After cooling take off the band and they will hold the batteries even better.
> 
> Congrats to all on this substitute.
> 
> I wonder if you take the entire 48" length and fill it with batteries, what the voltage would be?
> 
> 73, John
> 
> ----- Original Message -----
> From: "Bill Zukowski" <n2yeg at optonline.net>
> To: "NJARC" <NJARC at mailman.qth.net>
> Sent: Thursday, September 15, 2016 5:35:37 PM
> Subject: Re: [NJARC] plastic battery tubes
> 
> Just remember
> Reply = Poster
> Reply All = Everyone
> 
> _________________________________________________________
> 
> Looked at the T12 guard tubes, but they were about 1/4 inch loo large 
> (ID).  Went home disappointed, but then while explaining my plight to a 
> friend, I had an epiphany.
> 
> After cutting the tube to the correct length, 6 1/2 inches, I cut the 
> tube lengthwise, from end to end, and the tube contracted.  So I 
> inserted 3 batteries, and the natural tension of the plastic closed 
> around the batteries.  Applied some solvent type glue that seeped 
> between the surfaces and that was it!
> 
> Trimmed the edges with a scissor, and it looks almost factory.  The 8 
> foot tube was about $5, so at 6 1/2 inches per tube, I can make 14 
> tubes.  A guy on ebay is selling the battery tubes for about $20.  So, 
> if I charge only $10 each, that's $140!  A profit of $135!!
> 
> Don't attempt this, I have a patent pending.
> 
> 
> 
> 
> On 9/13/2016 7:12 PM, Bill Zukowski wrote:
>> Just remember
>> Reply = Poster
>> Reply All = Everyone
>> 
>> _________________________________________________________
>> 
>> 
>> Thanks everyone.  The fluorescent guard tubes sounds like a plan.
>> 
>> On 9/13/2016 5:47 PM, islandradiosvc--- via NJARC wrote:
>>> Just remember
>>> Reply = Poster
>>> Reply All = Everyone
>>> 
>>> _________________________________________________________
>>> 
>>> 
>>> I have used the guard tubes they sell for T-12 lamps , I believe you 
> can get them in Home Depot...  You can cut them down to size, and they 
> are not expensive..
>>> 
>>> 
>>> 
>>> In a message dated 9/13/2016 5:13:59 P.M. Eastern Daylight Time, 
> n2yeg at optonline.net writes:
>>> 
>>>    Just remember
>>>    Reply = Poster
>>>    Reply All = Everyone
>>> 
>>>    _________________________________________________________
>>> 
>>> 
>>> 
>>> 
>>>    Looking for plastic tubes to hold three D cells in holder. 
> Working on a Zenith R-1000 with nine batteries that won't stay in the 
> holder (need 3 tubes).
>>> 
>>>    Did the usual Google search to no avail.  Did find some on ebay 
> however - at $18.95 each!
>>> 
>>>    Any ideas?
>>> 
>>>    Thanks, Bill
> 
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