[Ron Ramirez]

Yes, the 76 was used in this cabinet, as was the 40 (110 volts DC) and 87 (8 tubes):

http://www.philcoradio.com/gallery/1929c.htm#g

In these early years of Philco radios, they often used different chassis in the same cabinets.

You can use a 95 power transformer in a 76 - the voltages are the same - but the interstage audio transformer from a 95 will not physically fit a 76 chassis without some modifications even though they are similar electrically. And the 95 tube shield will not fit a 76.

Unfortunately, this drives home the fact that you should always do your research before spending money on a set. And if the set is a Philco, that research should include the information available at Philcoradio.com . This is why the site exists - to help folks out.

Edit: One more thing. The model number in Philco sets made from 1929 to 1932 helps tell you how many tubes are in the set.

50, 51, 52 - 5 tubes
62, 65 - 6 tubes
70, 71, 73, 76, 77 - 7 tubes
82, 86, 83, 87 - 8 tubes
90, 91, 95, 96 - 9 tubes
111, 112 - 11 tubes