Hello.Originally Posted by KJ6BSO
I was going for that family friendly "G" rating, ;)
Hello.
I was going for that family friendly "G" rating, ;)
Well... You DO have to know them to blow them methinks.
I've accidentally swallowed some Scrabble tiles. My next crap could spell disaster.
True enough, but it doesn't matter if you know the right people unless you blow them.
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
20 bucks
"Friendships come in strange packages
The best ones are opened with a smile"
NA4BH '15
Hello.
Got an idea out of this that works very well.
I am noted for taking a tube device that has a single ended output and adding a solid state other half, making it push pull output.
I normally try to use filament supply and a more common low voltage supply to provide power for this.
Now the idea is a bit more novel. use a sweep transistor and a 70 or 25 volt line matching transformer for the output and just run the thing on the high voltage supply.
I have been messing with the classic 5 tube AC/DC design changing how the radio derives voltages from the line.
The classic farm radio that operated on 32 volts gave me this idea, the first 3 tube filaments in series, 36 volts but work fine on the reduced voltage.
The output tube being directly across the line, a 35L6.
Running the radio at 32 volts nominal means around 35 volts while charging.
So, if we run the thing at 35 volts and use a transistor and transformer for 25 volts as the output and 8 ohms for the speaker we can overcome the low output, by a wide margin it would seem.
This is now loud radio.
35 volts DC is super easy to do, a pair of 16 volt transformers with the secondaries in series and a bridge rectifier and some caps and the deed is done on the cheap.
This goes inside the matching speaker and power supply/transmitter box.
In the case of an upright radio the unit can simply be a chassis in the bottom of the radio, but I dislike really large radios, no place to put it.
But, even if the plate voltage were the more normal 140 volts this thing would work.
Hello.
Actually this is directly on track.
http://www.mcclellans.com/Philco32B.htm
http://en.wikipedia.org/wiki/All_American_Five
http://www.smokstak.com/forum/showthread.php?t=31826
32 volts is still a common voltage for Marine equipment, along with 110VDC.
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