11-16-2016, 08:13 PM
OK, I have the tone control out, and now I'm a bit confused about the replacement caps. The part numbers on the schematic that I'm using (Ron's labor of love for the 19...the one he thinks should be the "code 126" is the one I'm using) has part number...what...number 53? Then there seem to be two sets of caps...part numbers 52 (a .05 and a .03) and part number 33 (a .015 and a .006). Part 33 is the tone control on the parts map for the 19/89 in the "changes" bulletin. There are no parts 52 and 53 on that parts map.
The tone control in the radio seemed to only have two caps in it, and, unrelated, my radio has a Bakelite block with a .05 in it (in the upper right in the photo above...also not on the parts map for the old 89/19 schematic) that connects to what I take to be R20 (2900 ohms) connecting it to C8.
So my tone control restuff should use the values on Ron's schematic for part 33 (which are .006 and .015). I can find R50 between the volume control and the tone control and it measures correct (10K). So I guess my question is:
Where is part 52 and what is part 53?
The tone control in the radio seemed to only have two caps in it, and, unrelated, my radio has a Bakelite block with a .05 in it (in the upper right in the photo above...also not on the parts map for the old 89/19 schematic) that connects to what I take to be R20 (2900 ohms) connecting it to C8.
So my tone control restuff should use the values on Ron's schematic for part 33 (which are .006 and .015). I can find R50 between the volume control and the tone control and it measures correct (10K). So I guess my question is:
Where is part 52 and what is part 53?
Charlie in San Antonio
