[Milsurplus] Re: More Russki Radio...

[Unserviceable but Repairable]

D S wrote

} A couple of the guys have asked:
} 
} > Just out of curiosity, what would happen if you used an automotive 
} > inverter
} > (the little 30-50 watt kind), rectified & filtered the output, ...
} 
} I've tried this twice.  It seems that auto-to-110VAC inverters are
} built in several different ways.   The two I tried were the cheapie
} "WallyWorld" lighter plug type.  I first used a bridge rectifier
} on the output and they did not like that a bit.  Turns out that
} the output of these inverters is single-ended.  The "neutral" blade
} of the output is common with the negative "ground" side of
} the input connection.  This being the case, only a half-wave
} rectifier worked....

WRONG

On tested car inverters, complete isolation between 12V input, 
case, & output socket.  Hence at-home wisdom of how to treat that
polarized socket out the window.

Bridge rectifier & choke-input filter?  Bring it on.

Note to "couple of guys who asked the perfesser."  I posted on
powering BC-1000 & a RT-70 this way a week back.  Filament supply
delivered by old xfrmr-based 5V/6Vdc wall-warts

They both checked in @ Dayton on successive years.

  Marty aka aa4rm