Philco 48-460


click on image to enlarge

Philco debuted this cabinet style in 1946 and it proved so popular that they continued to produce it for the rest of the decade, the only changes being to update the innards and model number a couple of times.  The 1946 version was a straight AA-6, but this one is more exotic.  Instead of an RF amplifier, it pushes the tube count to six by using two IF amplifier tubes, though I would hardly say it had two IF stages.   Instead of the Philco favorite 7A8 octode converter, they went neo-classical here with a twin triode as mixer & oscillator.

Tube complement

oscillator/mixer  1  14AF7
 IF amplifier 2 7B7
 detector/amp 1 7C6
 audio output 1 50L6GT
 B+ rectifier 1 35Y4

One of the highlights of Lansing 2009 was scoring this set as I've always liked the style.  It worked as found, quite well in fact, but the dial light was very bright from excessive current being pulled by something.  All the original Philco-branded tubes tested like new, which is a real plus.  The only real difficulty I had at any time during this project was removing the chassis from the cabinet.  It isn't difficult at all, but it is very confounding if you don't know one simple little detail.  Note in the picture at left that the dial scale mechanism is blindly fastened to the ceiling of the cabinet.  It seems as if the chassis can't go anywhere as long as it's up there, yet it can not be removed.  Quite a quandary until you unclip the dial string.  Voila, the chassis tips out and you're ready to recap.



Before and after recap.  Note the addition of a terminal strip for new electrolyics. 

Although I remain skeptical of its superiority to a set with an RF amp, this radio is a great performer with above average tonal quality.

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