11-26-2011, 06:22 AM
So far so good,but before I start tuning the philco w/the transistor set, btw,very tricky!And yes you're correct IM freeqency udjust at 260 Kc for Philco 91. Looking at the Riders wiring sceme,the prim/inner tube winding states 5 ohms-my reading is 16 ohms,lug#4 and lead wire from end of the winding to plate of 36 tube(B+).The outer tube windings lug#3 between trimmers 18 +23 and lug#5 to tuning cap4 reads 5 ohms.Maybe misprint at Riders wirring-should be reversed?? Prim/inner tube=15 ohms,Sec./outer tube 5 ohms ????Well,this set is pouring some tunes out now.Also rewinded the coil #12.Same task.25 turns,38awg wire,clockwise winding start at lug 3 to lug 1.Rest of the coils at this Philco 91 circuit test as they should by Riders wiring sceme.
If all the Philcos outthere needs same treatment,then God bless us all.
Anyway thank you bunch for holding my hand to go with this !!
If all the Philcos outthere needs same treatment,then God bless us all.
Anyway thank you bunch for holding my hand to go with this !!