I've been posting about a possible speaker problem with my Rocker,but a new "problem" showed itself at last nights gig.
At the end of the 1st set,as i switched into standby & noticed the Bulb,was very dim,hardly visible,coincidentally the Amp had started to sound "off" towards the end of the set,so i'm suspecting my speaker "problem" may be something to do with the Amp ouput & this bulb issue,but i know zilch about valve amp circuits,so can anyone offer any advice.
If it helps i also feel the 8ohm output sounds better than the 16ohm out?
Cheers,Graham.
Rocker 30C indicator bulb Dimming? New Content re:8 ohm
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Rocker 30C indicator bulb Dimming? New Content re:8 ohm
Last edited by Gordy G on Sat Jan 21, 2017 9:20 am, edited 1 time in total.
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- Duke of Orange
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- Location: Derby, England
Re: Rocker 30C indicator ligh/bulb Dimming?
The indicator jewel light is on the same circuit as the valve heaters, straight from the power transformer.
It could be an issue with the valve heaters connector, the transformer, or still be something unrelated to that particular circuit. It's possible, though unlikely, that a failing valve could short the heater circuit.
Either way, it's tech time really.
It could be an issue with the valve heaters connector, the transformer, or still be something unrelated to that particular circuit. It's possible, though unlikely, that a failing valve could short the heater circuit.
Either way, it's tech time really.
Ant
Orange Gear: RV50 MKI, R30, AD15, PPC212
And.... Genz Benz Black Pearl 30
Past Orange: AD30TC Combo, TT, AD5
Guitars: Gibson Les Paul Standard Faded, Vigier Expert Retro 54, Gibson SG 70s Tribute, Aria Pro II RS X80, G&L ASAT Special Tribute
Orange Gear: RV50 MKI, R30, AD15, PPC212
And.... Genz Benz Black Pearl 30
Past Orange: AD30TC Combo, TT, AD5
Guitars: Gibson Les Paul Standard Faded, Vigier Expert Retro 54, Gibson SG 70s Tribute, Aria Pro II RS X80, G&L ASAT Special Tribute
Re: Rocker 30C indicator ligh/bulb Dimming?
Thanks,i do know a very competent audio engineer,can you tell me if it's possible to obtain a circuit diagram,he may not need it,but it may make the repair a bit quicker.Les Paul Lover wrote:The indicator jewel light is on the same circuit as the valve heaters, straight from the power transformer.
It could be an issue with the valve heaters connector, the transformer, or still be something unrelated to that particular circuit. It's possible, though unlikely, that a failing valve could short the heater circuit.
Either way, it's tech time really.
Cheers,Graham.
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- Duke of Orange
- Posts: 6821
- Joined: Tue Aug 18, 2009 9:08 am
- Location: Derby, England
Re: Rocker 30C indicator ligh/bulb Dimming?
Gordy G wrote:Thanks,i do know a very competent audio engineer,can you tell me if it's possible to obtain a circuit diagram,he may not need it,but it may make the repair a bit quicker.Les Paul Lover wrote:The indicator jewel light is on the same circuit as the valve heaters, straight from the power transformer.
It could be an issue with the valve heaters connector, the transformer, or still be something unrelated to that particular circuit. It's possible, though unlikely, that a failing valve could short the heater circuit.
Either way, it's tech time really.
Cheers,Graham.
One of our forum members here (Jondog) drew one, and that is the only one widely available on the Internet (Google R30 schematic). Otherwise, Orange distribute the schematic upon request by qualified technicians.
Ant
Orange Gear: RV50 MKI, R30, AD15, PPC212
And.... Genz Benz Black Pearl 30
Past Orange: AD30TC Combo, TT, AD5
Guitars: Gibson Les Paul Standard Faded, Vigier Expert Retro 54, Gibson SG 70s Tribute, Aria Pro II RS X80, G&L ASAT Special Tribute
Orange Gear: RV50 MKI, R30, AD15, PPC212
And.... Genz Benz Black Pearl 30
Past Orange: AD30TC Combo, TT, AD5
Guitars: Gibson Les Paul Standard Faded, Vigier Expert Retro 54, Gibson SG 70s Tribute, Aria Pro II RS X80, G&L ASAT Special Tribute
Re: Rocker 30C indicator ligh/bulb Dimming?
Thanks,LPL.I googled & all i could find is a schematic titled R30 Dirty Channel,is this what you are referring to?
Cheers,Graham.
Cheers,Graham.
Re: Rocker 30C indicator ligh/bulb Dimming?
viewtopic.php?f=3&t=49469&start=15" onclick="window.open(this.href);return false;Gordy G wrote:Thanks,LPL.I googled & all i could find is a schematic titled R30 Dirty Channel,is this what you are referring to?
Cheers,Graham.
Sooner
AD1512 Serial No. 001
AD1512 Serial No. 001
Re: Rocker 30C indicator ligh/bulb Dimming?
Thanks,Sooner.Much appreciated.
Re: Rocker 30C indicator ligh/bulb Dimming?
The bulb is on the AC voltage filament circuit of the phase inverter and power tubes.
Re: Rocker 30C indicator ligh/bulb Dimming?
Thank you,Jondog
Re: Rocker 30C indicator bulb Dimming? New Content re:8 ohm
I've amended the title to include the following.
I used the Rocker at practice yesterday(for over 3 hours continuous),but i used the 8 ohm tap with a different speaker cab(1 x 12") & i didn't get the dimming light problem,is it possible that the dimming could only occur on the 16ohm tap ?,if so could this help to diagnose the fault?.
I used the Rocker at practice yesterday(for over 3 hours continuous),but i used the 8 ohm tap with a different speaker cab(1 x 12") & i didn't get the dimming light problem,is it possible that the dimming could only occur on the 16ohm tap ?,if so could this help to diagnose the fault?.
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- Duke of Orange
- Posts: 6821
- Joined: Tue Aug 18, 2009 9:08 am
- Location: Derby, England
Re: Rocker 30C indicator bulb Dimming? New Content re:8 ohm
It's possible - it's also possible the 16ohm speaker cab could be the fault?Gordy G wrote:I've amended the title to include the following.
I used the Rocker at practice yesterday(for over 3 hours continuous),but i used the 8 ohm tap with a different speaker cab(1 x 12") & i didn't get the dimming light problem,is it possible that the dimming could only occur on the 16ohm tap ?,if so could this help to diagnose the fault?.
It could be an intermittent fault too, and they can be difficult to trace.
Ant
Orange Gear: RV50 MKI, R30, AD15, PPC212
And.... Genz Benz Black Pearl 30
Past Orange: AD30TC Combo, TT, AD5
Guitars: Gibson Les Paul Standard Faded, Vigier Expert Retro 54, Gibson SG 70s Tribute, Aria Pro II RS X80, G&L ASAT Special Tribute
Orange Gear: RV50 MKI, R30, AD15, PPC212
And.... Genz Benz Black Pearl 30
Past Orange: AD30TC Combo, TT, AD5
Guitars: Gibson Les Paul Standard Faded, Vigier Expert Retro 54, Gibson SG 70s Tribute, Aria Pro II RS X80, G&L ASAT Special Tribute
Re: Rocker 30C indicator bulb Dimming? New Content re:8 ohm
Thanks,for the help,the amps going into the tech this week,hop it's not too painfull.
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