Quote:
Originally Posted by stusnyder
I'm going to try the resistor since I already have it. I did a google search on this radio and found one other example at http://americanradios.perso.sfr.fr/Gallery.htm
He has a footnote about if anybody has any info on it, to email him. I sent him a email telling him what I know. So this seems like a scarce set.
I'm trying to get a rough date on this thing. By the type of tubes in it, I'm guessing 30's???? |
It's around a 1933-34 radio. The penta-grid converter tube came out around mid-1934. 6A7 and it's varients.
IIRC, the resistance line cord on these sets was a 160 ohm and dissipated 20 watts, over its length. Modern 120 volt mains require around 175 ohms.
If you're planning on using a 100 ohm dropping resistor, it's not enough drop. 100 ohm resistor will only drop 30 volts, you need a 51 volt drop.
Those tubes are getting harder to get. You don't want to over voltage them.