Hi!everyone.
I'm new here.My ceriatone ots 've got a problem about od volume.
It's too loud.If i turn level to 5,ratio is just 1-1.5 to balance with clean channel.What's the problem or it normally? and master volume is not separate from od ratio(volume).THx
My ceriatone ots. 've got a problem about OD volume!!!!!
Moderators: pompeiisneaks, Colossal
Re: My ceriatone ots. 've got a problem about OD volume!!!!!
Did you visit ceriatoneforum.com;
Ic racer posted a manual once:
Here is a quick guide to the Overtone.
********Front Panel:**********
FET: This input is for an acoustic guitar pickup.
NOR: This input is for an electric guitar
Volume: Sets the amount of gain for the preamp section. Use the "Master" to set overall amp volume. Higher levels of the Volume will distort the 'Overdrive' channel more.
Bright Switch: Adds a treble boost to both channels
Mid Boost: (similar to the bright switch) Functions in both channels; adds some extra kick, especially in the overdrive channel.
Jazz/Rock: The Jazz setting is a quieter, lower gain setting.
Treble/Mid/Bass: These self-explanitory controls function in both channels. They are bypassed with the "PAB" (preamp-boost)
Drive/Ratio: These function only in the "overdrive" channel. The Drive, works in conjuction wth the "Volume" to control the overall gain or distortion. The Ratio is a seperate master volume. To set the Ratio control, go to the clean channel and set the overal clean loudness of the amp with the Master control. Then engage the "overdrive" channel and adjust the Ratio control to get an appropriate loudness of the overdrive channel.
Master: sets the overall loudness of the amp. Raises and lowers the loudness of both channels together.
Presence: Controls the amount of negative feedback. Higher settings reduce negative feedback and give more distortion. Lower settings increase the negative feedback on the power supply and reduce distortion.
********Back Panel ************
Ground Switch: Places a capacitor between one of leads from the mains to the ground. (May not be hooked up)
ON/OFF; Controls power to the amplifier. Make sure the standby is "off" before switching on. If the tubes get fed full plate voltage (over 400v) without being warmed up first, there can be damage to the cathode part of the tube.
Standby; controls the high voltage power to the tubes. Has the effect of silencing the amp. Let the tubes heat up a few moments before disengaging the standby when first powering up.
Fuse: There are two fuses. One on the back panel and another under the chassis. The fuse on the back panel is the 'overall amp current' fuse and should be a slow blow 3A for 120v systems and a slow blow 2A for 220 systems. The other fuse is an extra saftey measure just to protect the transformer and is a lower value (0.5A).
Speaker impedance: 4/8/16 Set this to the amp cabinet or speaker impedance.
Effects Input and output: This is a passive effects loop, There may be gain mismatch between the input of this jack and that of an effects pedal. Try it and see how it works. If you are serious about having an active loop, you can buy or build a Dumbelator which will plug in here and will have its own input/output into which the effects will plug.
PAB and OVERDRIVE switches on back panel: With the foot pedal unplugged, these switches control the preamp boost (which disengages the tone controls for some extra gain) and the Overdrive channel (which adds gain and distortion to the clean channel). So, they would be "ON" when set to "Manual". When the foot pedal switch is plugged in, keep these switches on "Pedal" for correct function with the foot pedal.
**********Inner Potentiometers (trimmers)***************
FET INPUT TRIMMER: located on the board near the FET input. Adjust this to change the gain of your acoustic guitar plugged into the FET input.
OD TRimmer: Located closest to the guitar inputs on the rectangular board. Adjust for the lowest setting that will produce a good overdrive tone.
Phase input trimmer. Located closest to the power tubes. Used to balance the two sides of the phase inverter tube.
Bias Pot and Bias Points: Put a multimeter lead into the red and black jack and set the meter to millivolts. The reading will approximate the milliamp current draw of the tube. Set using the bias pot, set the value to an appropriate level for the tubes installed.
Tube types: The two larger tubes are 6L6. The three smaller tubes are 7025 or 12AX7
Ic racer posted a manual once:
Here is a quick guide to the Overtone.
********Front Panel:**********
FET: This input is for an acoustic guitar pickup.
NOR: This input is for an electric guitar
Volume: Sets the amount of gain for the preamp section. Use the "Master" to set overall amp volume. Higher levels of the Volume will distort the 'Overdrive' channel more.
Bright Switch: Adds a treble boost to both channels
Mid Boost: (similar to the bright switch) Functions in both channels; adds some extra kick, especially in the overdrive channel.
Jazz/Rock: The Jazz setting is a quieter, lower gain setting.
Treble/Mid/Bass: These self-explanitory controls function in both channels. They are bypassed with the "PAB" (preamp-boost)
Drive/Ratio: These function only in the "overdrive" channel. The Drive, works in conjuction wth the "Volume" to control the overall gain or distortion. The Ratio is a seperate master volume. To set the Ratio control, go to the clean channel and set the overal clean loudness of the amp with the Master control. Then engage the "overdrive" channel and adjust the Ratio control to get an appropriate loudness of the overdrive channel.
Master: sets the overall loudness of the amp. Raises and lowers the loudness of both channels together.
Presence: Controls the amount of negative feedback. Higher settings reduce negative feedback and give more distortion. Lower settings increase the negative feedback on the power supply and reduce distortion.
********Back Panel ************
Ground Switch: Places a capacitor between one of leads from the mains to the ground. (May not be hooked up)
ON/OFF; Controls power to the amplifier. Make sure the standby is "off" before switching on. If the tubes get fed full plate voltage (over 400v) without being warmed up first, there can be damage to the cathode part of the tube.
Standby; controls the high voltage power to the tubes. Has the effect of silencing the amp. Let the tubes heat up a few moments before disengaging the standby when first powering up.
Fuse: There are two fuses. One on the back panel and another under the chassis. The fuse on the back panel is the 'overall amp current' fuse and should be a slow blow 3A for 120v systems and a slow blow 2A for 220 systems. The other fuse is an extra saftey measure just to protect the transformer and is a lower value (0.5A).
Speaker impedance: 4/8/16 Set this to the amp cabinet or speaker impedance.
Effects Input and output: This is a passive effects loop, There may be gain mismatch between the input of this jack and that of an effects pedal. Try it and see how it works. If you are serious about having an active loop, you can buy or build a Dumbelator which will plug in here and will have its own input/output into which the effects will plug.
PAB and OVERDRIVE switches on back panel: With the foot pedal unplugged, these switches control the preamp boost (which disengages the tone controls for some extra gain) and the Overdrive channel (which adds gain and distortion to the clean channel). So, they would be "ON" when set to "Manual". When the foot pedal switch is plugged in, keep these switches on "Pedal" for correct function with the foot pedal.
**********Inner Potentiometers (trimmers)***************
FET INPUT TRIMMER: located on the board near the FET input. Adjust this to change the gain of your acoustic guitar plugged into the FET input.
OD TRimmer: Located closest to the guitar inputs on the rectangular board. Adjust for the lowest setting that will produce a good overdrive tone.
Phase input trimmer. Located closest to the power tubes. Used to balance the two sides of the phase inverter tube.
Bias Pot and Bias Points: Put a multimeter lead into the red and black jack and set the meter to millivolts. The reading will approximate the milliamp current draw of the tube. Set using the bias pot, set the value to an appropriate level for the tubes installed.
Tube types: The two larger tubes are 6L6. The three smaller tubes are 7025 or 12AX7
Re: My ceriatone ots. 've got a problem about OD volume!!!!!
===============================================erwin_ve wrote:Did you visit ceriatoneforum.com;
Ic racer posted a manual once:
Here is a quick guide to the Overtone.
********Front Panel:**********
FET: This input is for an acoustic guitar pickup.
NOR: This input is for an electric guitar
Volume: Sets the amount of gain for the preamp section. Use the "Master" to set overall amp volume. Higher levels of the Volume will distort the 'Overdrive' channel more.
Bright Switch: Adds a treble boost to both channels
Mid Boost: (similar to the bright switch) Functions in both channels; adds some extra kick, especially in the overdrive channel.
Jazz/Rock: The Jazz setting is a quieter, lower gain setting.
Treble/Mid/Bass: These self-explanitory controls function in both channels. They are bypassed with the "PAB" (preamp-boost)
Drive/Ratio: These function only in the "overdrive" channel. The Drive, works in conjuction wth the "Volume" to control the overall gain or distortion. The Ratio is a seperate master volume. To set the Ratio control, go to the clean channel and set the overal clean loudness of the amp with the Master control. Then engage the "overdrive" channel and adjust the Ratio control to get an appropriate loudness of the overdrive channel.
Master: sets the overall loudness of the amp. Raises and lowers the loudness of both channels together.
Presence: Controls the amount of negative feedback. Higher settings reduce negative feedback and give more distortion. Lower settings increase the negative feedback on the power supply and reduce distortion.
********Back Panel ************
Ground Switch: Places a capacitor between one of leads from the mains to the ground. (May not be hooked up)
ON/OFF; Controls power to the amplifier. Make sure the standby is "off" before switching on. If the tubes get fed full plate voltage (over 400v) without being warmed up first, there can be damage to the cathode part of the tube.
Standby; controls the high voltage power to the tubes. Has the effect of silencing the amp. Let the tubes heat up a few moments before disengaging the standby when first powering up.
Fuse: There are two fuses. One on the back panel and another under the chassis. The fuse on the back panel is the 'overall amp current' fuse and should be a slow blow 3A for 120v systems and a slow blow 2A for 220 systems. The other fuse is an extra saftey measure just to protect the transformer and is a lower value (0.5A).
Speaker impedance: 4/8/16 Set this to the amp cabinet or speaker impedance.
Effects Input and output: This is a passive effects loop, There may be gain mismatch between the input of this jack and that of an effects pedal. Try it and see how it works. If you are serious about having an active loop, you can buy or build a Dumbelator which will plug in here and will have its own input/output into which the effects will plug.
PAB and OVERDRIVE switches on back panel: With the foot pedal unplugged, these switches control the preamp boost (which disengages the tone controls for some extra gain) and the Overdrive channel (which adds gain and distortion to the clean channel). So, they would be "ON" when set to "Manual". When the foot pedal switch is plugged in, keep these switches on "Pedal" for correct function with the foot pedal.
**********Inner Potentiometers (trimmers)***************
FET INPUT TRIMMER: located on the board near the FET input. Adjust this to change the gain of your acoustic guitar plugged into the FET input.
OD TRimmer: Located closest to the guitar inputs on the rectangular board. Adjust for the lowest setting that will produce a good overdrive tone.
Phase input trimmer. Located closest to the power tubes. Used to balance the two sides of the phase inverter tube.
Bias Pot and Bias Points: Put a multimeter lead into the red and black jack and set the meter to millivolts. The reading will approximate the milliamp current draw of the tube. Set using the bias pot, set the value to an appropriate level for the tubes installed.
Tube types: The two larger tubes are 6L6. The three smaller tubes are 7025 or 12AX7
Thank you so much! that's mean it may have no problem!!!
But why every ceriatone ots on you tube always turn the ratio on 5
If i try that,My room will be explode for sure.
anyway,really wanna say thank you for erwin_ve.
you are my first friend here. ^^
Re: My ceriatone ots. 've got a problem about OD volume!!!!!
Also, are you aware that there is a trimmer inside the amp for the OD gain?
Usually the sweet spot is around 10 O'clock when viewing it from the back of the amp.
If you have a DVM and are comfortable working around 440 volts DC you can measure the trimmer wiper to ground resistance.
Set it at 25K-35K depending on taste.
This is with the amp not turned or plugged in.
If you don't know how to safely work on an amp take it to a tech to have it adjusted.
Usually the sweet spot is around 10 O'clock when viewing it from the back of the amp.
If you have a DVM and are comfortable working around 440 volts DC you can measure the trimmer wiper to ground resistance.
Set it at 25K-35K depending on taste.
This is with the amp not turned or plugged in.
If you don't know how to safely work on an amp take it to a tech to have it adjusted.
Tom
Don't let that smoke out!
Don't let that smoke out!
Re: My ceriatone ots. 've got a problem about OD volume!!!!!
Thank u tom.It may help a lot.
Re: My ceriatone ots. 've got a problem about OD volume!!!!!
I will say this, that most of the front panel controls are interactive.
If you want a thick creamy distortion turn the preamp volume up past half way and then have the master volume down to where the volume is what you want for the clean channel.
Then use the OD level to balance the OD to the clean.
The Ratio pot is for the amount of overdrive that you want, from little break up to full on overdrive.
If you want cleaner cleans, turn the master past half way then adust the preamp volume to the overall volume you want, then adjust the OD level to balance it with the clean channel.
If you want a thick creamy distortion turn the preamp volume up past half way and then have the master volume down to where the volume is what you want for the clean channel.
Then use the OD level to balance the OD to the clean.
The Ratio pot is for the amount of overdrive that you want, from little break up to full on overdrive.
If you want cleaner cleans, turn the master past half way then adust the preamp volume to the overall volume you want, then adjust the OD level to balance it with the clean channel.
Tom
Don't let that smoke out!
Don't let that smoke out!