12-10-2014, 11:04 AM
35A Revisited:
Sam was kind enough to send along a 41-240 speaker that is in excellent condition. Many thanks, Sam!
[Image: http://www.philcoradio.com/images/phorum...e00014.jpg]
[Image: http://www.philcoradio.com/images/phorum...e00015.jpg]
The 41-240 speaker is part no. 36-1510-4 while the 35A speaker is part no. 36-1504-something. Both appear identical and are electrically identical as well.
So after a few minutes of surgery, the transplant was complete:
[Image: http://www.philcoradio.com/images/phorum...e00016.jpg]
The "new" speaker sounds excellent. Mind you, the original speaker looks bad but also sounds good, so I'll hold it for future use.
While I had the chassis out, I did take another look at the tone control. Even manually shorting out the junction of caps (40) and (41) (on the 41-712 schematic) had no effect on tone, so I'm thinking either (40) or (41) is open. But I decided against going any further - the radio plays very well as is, so I put it all back together and placed it back on the shelf with its Tropic brethren.
Sam was kind enough to send along a 41-240 speaker that is in excellent condition. Many thanks, Sam!
[Image: http://www.philcoradio.com/images/phorum...e00014.jpg]
[Image: http://www.philcoradio.com/images/phorum...e00015.jpg]
The 41-240 speaker is part no. 36-1510-4 while the 35A speaker is part no. 36-1504-something. Both appear identical and are electrically identical as well.
So after a few minutes of surgery, the transplant was complete:
[Image: http://www.philcoradio.com/images/phorum...e00016.jpg]
The "new" speaker sounds excellent. Mind you, the original speaker looks bad but also sounds good, so I'll hold it for future use.
While I had the chassis out, I did take another look at the tone control. Even manually shorting out the junction of caps (40) and (41) (on the 41-712 schematic) had no effect on tone, so I'm thinking either (40) or (41) is open. But I decided against going any further - the radio plays very well as is, so I put it all back together and placed it back on the shelf with its Tropic brethren.
--
Ron Ramirez
Ferdinand IN
