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Re: [Amps] mobile amp

To: craxd1@ezwv.com
Subject: Re: [Amps] mobile amp
From: Tomm Aldridge <KD7QAE@ARRL.NET>
Date: Tue, 08 Mar 2005 06:06:36 +0000
List-post: <mailto:amps@contesting.com>
Note they also have ferrite rods at the bottom of the referenced page. 
Good for filament chokes.  Note also that I have refrained from making 
any vibrator jokes (hi hi).

Tomm

Will Matney wrote:
> I had to tell about what I'd found for several reasons here. I got to looking 
> and found that they still make the old 6 and 12 Vdc 3 and 4 pin vibrators. I 
> recon theyre still making some new sockets for them too. Now if anyone would 
> like to do a small mobile tube project, this would be a way to go like back 
> in the 40's. They'll also go right in place on the old ones for repairs. I 
> seen they're still around and thought of a small single sweep tube amp or 
> something using a audio output type just playing around. Heck, they're making 
> 6146B's yet at the cheap, about 16-17 bux a piece. Now they wont hold much 
> current, I think maybe 10 amps max so about 120 watts would be pusing one. 
> But, if your looking for a small project to just pass the time and want to 
> work with some smaller tubes, that would be an idea. One could use the 
> vibrator to switch several heavy transistors on and off using a small driver 
> transformer between it and the transistors. This would get you out of having 
> to
 ha
>  ve a transformer made for this with a tickler winding on it. Just use a 24 
> Vdc C.T. for the primary and the 120 Vac end for the HV secondary. This could 
> be made into a doubler too and get about +336 Vdc for the plates. Just an 
> idea if somebody would like to tinker some on their past time.
> 
> The new vibrators are at Antique Electronics. Here is a link to the catalog 
> page for them in pdf;
> 
> http://www.tubesandmore.com/images/AES04-039.pdf
> 
> Best,
> 
> Will
> 
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