Post by Angela on Feb 28, 2021 15:11:21 GMT
We have a 1961 Wurlitzer 2510 we have owned and used infrequently for the last 12 years. We were playing the jukebox as normal when the speakers cut out. We had recently replaced all the tubes but otherwise the amp was working fine before the sudden mid-record sound outage. Tone arm is working fine, you can hear music from the head - new head installed recently. After verifying there were no wiring issues, we took the amp out to inspect after I put the meter on the outputs. I am only getting a very weak output reading on the speaker jack plugins. I get an 8 ohm output to the CV speaker posts but only 1 ohm on the other posts and on the speaker jack plugins.
On the bottom of the amp there is a large carbon resistor connected to the semicircle post of the large silver capacitor labeled C27 on the schematic. The diagram shows, from what I am reading, that this is R59 which would be 1k ohms 2 watts 10%. The banding is too damaged to read as when I lightly touched it, the center fell in pieces. The resistor was blackened. Obviously I need a replacement It is much larger than the others, about 3/4" x 1/4". I tried to attach a pix but get an error that the forum is out of attachment space. I can send directly if you want to help.
Can anyone verify for me the correct banding and identification of this resistor? I am planning to recap the amp and replace all resistors reading out of range while I have it apart. I have what appears to be a factory service manual and am using the resistor value calculator from tubesandmore.com. I am confident of the other resistor identifications except for this bad boy. Please help!!
Thanks
Angela