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Difference between PT-2 and 46-250
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What are the main changes in the schematic between the pre-war 1942 PT-2 transitone and the post-war 46-250 (besides the obvious different 35Z3 tube in the PT-2 and a 35Z5 in the 46-250)? I have a PT-2 I just got and want to have ready to give to a friend when he's in town next Saturday. I'm working off of an original Philco Service Bulletin with the schematic for the 46-250, as I don't have the complete schematic for a PT-2. One thing that puzzles me is that it appears certain capacitors are reversed between the two different models. I can't imagine Philco would've made that many changes to a relatively simple radio when everything else appears identical. Any thoughts from those who have had experience restoring these two different models would be most appreciated.

Greg V.
West Bend, WI
Member WARCI.org


Messages In This Thread
Difference between PT-2 and 46-250 - by NostalgiaRadioTime - 01-06-2013, 08:11 PM
RE: Difference between PT-2 and 46-250 - by Arran - 01-06-2013, 08:15 PM
RE: Difference between PT-2 and 46-250 - by Arran - 01-06-2013, 08:42 PM
RE: Difference between PT-2 and 46-250 - by Arran - 01-06-2013, 09:03 PM



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