[Milsurplus] Boulevard Receiver

[WA5CAB at cs.com]

While I wouldn't disagree that a series dropping resistor in the filament 
string if present could generate more heat than a filament transformer, 25 volt 
heater tubes generate no more (and no less) heat than their 12.6 or 6.3 volt 
equivalents.  In this particular case, my take is that the 25L6 (and 50L6) 
should have been called something else.   They aren't really 25 or 50 volt 6L6's.  
But for the purposes of this thread, their heater wattage is close to the same 
as that of the 6L6.  Which means about the same heat generated per tube, not 
double or quadruple.  

In a message dated 5/28/2008 11:36:17 PM Central Daylight Time, 
kargo_cult at msn.com writes: 
> ( My main problem with the AC-DCs is that they almost always have some
> dropping resistors inside them, which generate heat, plus the high-filament
> voltage tubes such as 25L6 etc. all of which generate more heat. )

Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at comcast.net> (Backup email)
   
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