04-29-2012, 12:16 AM
Been working on a late 60B w/ square tube shields. Recapped the set and replaced all out of tolerance resistors. I had to rewind the antenna primary (4 turns) and the outside oscillator winding (counter clockwise, 17 turns). The set is running, but either something else is wrong of it's WAY out of alignment. I can only pick up the station I broadcast thought my sstran (volume is mediocre even when turned all the way up) and can barely pick up anything else using a 6ft wire.
I read in a previous post while searching for coil info, that the antenna coil has a 20 turn section between lugs 2 and 5. Mine measures open. Is this the section directly under the 4 turn outer section?
What I found by Ron:
Re: Philco 60 - Problem with Short Wave/Police Band
I see I never did report back with the correct number of turns in the 60 oscillator coil primary - my apologies.
I'll give details on both coils while I'm at it.
Model 60 Antenna Coil
Primary (outer) winding - 4 turns, CW, bottom to top, 38 gauge
Secondary winding (on the coil form) - All CW, bottom to top. 25 turns from beginning (lug 1) to lug 3. 129 turns from lug 3 to lug 2. 20 turns from lug 2 to lug 5. 32 gauge works well for this winding.
There is also a separate winding inside the coil form, mounted at the top. It is approximately 250 turns, 38 gauge.
Model 60 Oscillator Coil
Primary (outer) winding - 18 turns, CCW, 38 gauge, bottom to top, lug 3 to lug 2
Secondary winding (on the coil form) - All CW, bottom to top. 15 turns, lug 1 to lug 4. 90 turns, lug 4 to lug 5. 22 turns, lug 5 to lug 6 (on top). 32 gauge is OK for the secondary.
To determine which lug is lug 1, 2, 3, etc., hold the coil by the large mounting lug and count the small lugs clockwise from left to right.
--
Ron Ramirez
Ferdinand, IN
I read in a previous post while searching for coil info, that the antenna coil has a 20 turn section between lugs 2 and 5. Mine measures open. Is this the section directly under the 4 turn outer section?
What I found by Ron:
Re: Philco 60 - Problem with Short Wave/Police Band
I see I never did report back with the correct number of turns in the 60 oscillator coil primary - my apologies.
I'll give details on both coils while I'm at it.
Model 60 Antenna Coil
Primary (outer) winding - 4 turns, CW, bottom to top, 38 gauge
Secondary winding (on the coil form) - All CW, bottom to top. 25 turns from beginning (lug 1) to lug 3. 129 turns from lug 3 to lug 2. 20 turns from lug 2 to lug 5. 32 gauge works well for this winding.
There is also a separate winding inside the coil form, mounted at the top. It is approximately 250 turns, 38 gauge.
Model 60 Oscillator Coil
Primary (outer) winding - 18 turns, CCW, 38 gauge, bottom to top, lug 3 to lug 2
Secondary winding (on the coil form) - All CW, bottom to top. 15 turns, lug 1 to lug 4. 90 turns, lug 4 to lug 5. 22 turns, lug 5 to lug 6 (on top). 32 gauge is OK for the secondary.
To determine which lug is lug 1, 2, 3, etc., hold the coil by the large mounting lug and count the small lugs clockwise from left to right.
--
Ron Ramirez
Ferdinand, IN
