Ige Posted May 18, 2020 Share Posted May 18, 2020 Hi. I'm doing a restoration on a Gibson Chet Atkins CEC # D058: New Shadow transducer and new preamp. But I cannot get the tone control working properly. I have tried several capacitors, but very little effect. Can somebody tell me what's wrong ... Regards Bjorn Igeland, Norway Quote Link to comment Share on other sites More sharing options...
Sgt. Pepper Posted May 18, 2020 Share Posted May 18, 2020 2 hours ago, Ige said: Hi. I'm doing a restoration on a Gibson Chet Atkins CEC # D058: New Shadow transducer and new preamp. But I cannot get the tone control working properly. I have tried several capacitors, but very little effect. Can somebody tell me what's wrong ... Regards Bjorn Igeland, Norway Can you post a pic of what schematic your using. It could be alot of things or a cap. Quote Link to comment Share on other sites More sharing options...
Ige Posted May 20, 2020 Author Share Posted May 20, 2020 Thanks for quick reply. This is the preamp I have :https://reverb.com/item/26760556-gibson-chet-atkins-ce-circuitboard-preamp If you look at the Down/right of it, there is 4 pins. When I soldered a pot to the 2 to the right, I got boost/maybe some change i tone. Is it right to use this? I have tried several capacitors - soldered i the common way between vol- and tone pot. Very little responce. Strange. Do you have a solution? Regards Bjorn Quote Link to comment Share on other sites More sharing options...
Sgt. Pepper Posted May 20, 2020 Share Posted May 20, 2020 (edited) 5 hours ago, Ige said: Thanks for quick reply. This is the preamp I have :https://reverb.com/item/26760556-gibson-chet-atkins-ce-circuitboard-preamp If you look at the Down/right of it, there is 4 pins. When I soldered a pot to the 2 to the right, I got boost/maybe some change i tone. Is it right to use this? I have tried several capacitors - soldered i the common way between vol- and tone pot. Very little responce. Strange. Do you have a solution? Regards Bjorn Like I said I need to see the schematic of what you're doing and what you're supposed to connect that pre amp to. I've soldered many guitars but I just can't tell you it a cap because you connected something and that and doesn't work. If you can post a schematic and give me readings of where you're checking stuff I can help a little bit. Edited May 20, 2020 by Sgt. Pepper Quote Link to comment Share on other sites More sharing options...
Ige Posted May 20, 2020 Author Share Posted May 20, 2020 Hei, again. I cannot find a schematic of the preamp, Only a drawing of the connecting lugs. Since the limit to attach files here is 20kB (and the file is 72kB) it is impossible to send it. But as I can see , the bass pot can be connected directly to the print board. I tried that and got a bass boost when turning the pot. I have seen pics of the volume/tone Controls where on one it looked as a common tone Control With a capacitor. On another there was two leads (from each pot) going back to the preamp. Maybe mine is that "type" … I try carry on researching. Thanks for Your support so far. Regards Bjorn Quote Link to comment Share on other sites More sharing options...
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