[Hallicrafters] Re: Hallicrafters Digest, Vol 17, Issue 12

[cory]

** Reply to note from WA4DLF Wed,  8 Jun 2005 04:00:04 -0400 (EDT)


> I once owned an SR-150 and found it had a tendency to 
> be rough on the 12DQ6 tubes, for some reason, I forget 
> what.  Anyway, I converted it to use 6883 tubes, a 
> 12-volt-filament version of the 6146.   

> The mod is very easy to perform and the results are 
> super.  A minor bit of rewiring the sockets; replacing 
> the plate caps with a larger size; resetting the bias; 
> and you get a much more stable and robust final with a 
> little more power output.  I don't even recall having 
> a problem with neutralizing the tubes. 
..
> yeah, I know, it's not "original"!  BFD.  It works 
> much better.  And the outside, just like a Volkswagen, 
> looks the same. 

One caution. Those who make mods, while the mod is clear in your
mind, write it down on a "price tag", a sturdy one with milspec
style wire ties. 

"WARNING - FINAL REWIRED TO 6883 6/2005"  and show the pinout.
Then attach the tag to the back of the radio such that it cannot be
easily removed.

I guarentee that in twenty years someone will appreciate this.

I have a Signal/One CX7A that has a 4CX350F in place of the 8072.  

There are wires hanging out the back and a small circuit board with
a regulator on it.  

de ah6gi/4