Date: Tue, 17 Apr 2007 13:43:36 -0700
Reply-To: suunytoday7 <sunnytoday7@SBCGLOBAL.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: suunytoday7 <sunnytoday7@SBCGLOBAL.NET>
Subject: Re: Portable instument amplifiers in Vanagons was Re: Everybus
photos
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Hi All-
I use a 30 watt Pignose Hog 30.It has an 8" speaker .The charge seems to last forever. Pignose told me how to make a cigarette lighter charger from stuff we all have laying around in the garage.For protection the amp has a heavy screen covering the speaker. It's light weight and isn't weird shaped so it stores easily. Pignose makes great products and are wonderful to deal with if you have questions and/or problems.
It's fairly common to see Hog 30's on EBay and Craigslist.
For my bass playing purposes while camping in my vanagon it works just fine.
Brad Handzel
Robert Fisher <refisher@MCHSI.COM>
To: vanagon@GERRY.VANAGON.COM
Sent: Tuesday, April 17, 2007 10:23:53 AM
Subject: Portable instument amplifiers in Vanagons was Re: Everybus photos
While I'm as much a sucker for reinventing (or at least jerry-rigging) the
wheel as the next guy, they do make battery-powered combo amps just for this
purpose. Well maybe not specifically for playing out in a field at a VW
gathering, but you get my drift.
Cya,
Robert
----- Original Message -----
From: "Matt Roberds" <mattroberds@COX.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, April 17, 2007 4:49 AM
Subject: Re: Everybus photos
>> From: The Bus Depot <vanagon@BUSDEPOT.COM>
>> Date: Mon, 16 Apr 2007 23:04:12 -0400
>>
>> Electronic keyboards are no better, since these are usually acoustic
>> jams in the middle of a field with no electricity; wandering up with
>> a cheesy Yamaha plastic keyboard with 4 inch speakers and D batteries
>> just wouldn't cut it.
>
> Get a guitar amp with a good speaker but thrashed electronics, or an old
> stereo speaker. Also get a two-channel car stereo amp (50 to 100 watts
> or so) that has bridgeable outputs, and a couple of gel-cell batteries.
> Put the amp and the batteries in the bottom of the cabinet and wire it
> up. Also wire the batteries to a connector on the outside of the
> cabinet, so you can (Vanagon content) plug it into the van to recharge
> while you're driving home. If it's an old stereo speaker, mount a
> handle to the top so you can schlep it around. For a guitar amp or a
> speaker, you could even put some lawnmower wheels on it if you're feeling
> really lazy. :)
>
> Using the power of math, I will try to show that this isn't an insane
> idea. 50 W is 4.2 A at 12 V; the amplifier won't be 100% efficient but
> you could probably get 66%, making it draw about 6.3 A. The keyboard
> itself probably doesn't need much - maybe another 1 A @ 12 V, giving you
> a total draw of 7.3 A. A 12 V, 12 Ah (20h) gel-cell weighs about 8.8 lbs
> (4 kg) and could give you 7.3 A for an hour before being completely dead.
> This is an hour of tunes at 50 W continuous - in other words, turn the
> volume up all the way, tape down the lowest key on the keyboard, and walk
> off. At less than full volume, and with not playing speed metal on the
> piano, the average draw will probably be less, making the battery last
> longer.
>
> Matt Roberds
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