[Milsurplus] Solid State Vibrator /Inverter kit

[roy wildermuth]

I have used several approaches to powering Military Radios that require B+
Batteries. I always come back to the 9 volt dollar store solution. In the
case on my BC-611 I have also tried the inverters made in Italy. They work
very well but do introduce a component of noise. I also tried an interesting
solution using diodes and FETS mounted on 9 pin plugs. A set of these was
being marketed about 7 years ago. These also work very well but require
retuning of the radio. They were also in the neighborhood of $125.00 for the
set. They could be self made for much less. They worked from a supply of 27
volts made from 3 9 volt batteries applied to the B+. No filament was
required. I also have acquired an inverter for my BC-1000 which I have not
tried yet. But , in the end, these radios just seem to work better on
batteries. They were made to be operated that way.

Roy Wildermuth
AWA Museum

On Mon, Feb 21, 2011 at 10:17 AM, Ray Fantini <RAFANTINI at salisbury.edu>wrote:

> I have built many batteries packs for radios using just cheap nine volt
> transistor batteries and D cells for filaments. They last in my service for
> one to two years being that I only use the radios three or four times a year
> and never whine or produce interference. I have a DAV that I have been using
> for years at Dayton and have only had to change batteries once. As a
> alternative to solid state inverters the K4CHE web site has excellent pages
> on how to build batteries boxes for both the BC-611
> http://k4che.com/BC-611%20Box.htm and the PRC-6
> http://k4che.com/PRC-6%20Battery%20Box/PRC-6%20Battery%20Box.htm
> Ray Fantini KA3EKH
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