06-01-2008, 02:15 PM
Ron Ramirez Wrote:Hi Gary
The speaker used in the 37-89 is S-16. After some searching...I found that Model 38-89 also uses this speaker, but apparently no other Philco model used the S-16.
But there is good news. Philco did not give the DC resistance of the field coil in the 37-89 schematic...but they DID in the 38-89 schematic.
It is 1140 ohms.
This means that an S-7 speaker will work as a substitute. The S-7 was used in a number of Philco sets, including the following models: 60, 37-60, 37-61, 37-610, 37-620, 38-620.
I would offer to recone it for you, but so far, I have only been able to successfully recone K series Philco speakers. S series speakers have smaller voice coils and the one time I tried to recone one, it did not work out correctly. I *think* I know what I did wrong, but I have not had time nor inclination to try again.
Ron,
I knew you'd come through with the information, and I thank you. I may have a ghost in my pile of sets that I may be able to sacrifice a speaker from. For now I have something to go on in the event I try to search for a replacement speaker for the set.
Thank you,
73 de,
Gary/N9VU