06-02-2011, 09:07 AM
The US Philco 642 used 2-48's, but doesn't match your chassis:
http://www.nostalgiaair.org/PagesByModel...013820.pdf
Is 617FG a good tube number?
http://www.nostalgiaair.org/PagesByModel...013820.pdf
Is 617FG a good tube number?
Carl
Northern Panhandle, WV