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Desoldering Boy
Copper Member
Pakistan
23 Posts |
 Posted - 03/17/2009 : 15:30:19
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| Is this ok? it's only applicable to analog pedals? |
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nosi0
Gold Member
Netherlands
511 Posts |
Posted - 03/17/2009 : 15:31:50
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| Do not supply 12V to a 9V pedal Unless it says ACA adapter. And i know the RV-5 says PSA adapter. |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 03/17/2009 : 16:39:28
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Hi Desoldering Boy
It's probably not a good idea, to run a 9VDC pedal at 12VDC.
I'm not 100% sure of the RV-5, but a lot of the digital pedals, from that era, like the DD-2, have a small 100mA 5V regulator.
The extra 3VDC of the 12V supply will be dissipated as heat in the regulator, & those little 3 pin regulators don't have any type of real heatsinking.
You might be able to open the power supply & replace the regulator with a LM7809 9V regulator.
Most times, they use a programmable LM317T reg, & you may be able to trim it to (VDC, or at least recalculate the voltage trimming resistor, so that it's closer to 9V.
Good Luck
Let us know how you go.
Regards Dr. Bob 
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Desoldering Boy
Copper Member
Pakistan
23 Posts |
Posted - 03/17/2009 : 22:52:56
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I had this digital delay from BOSTON/BETA-AIVIN/GTX pedals, it is an SMT circuited pedal, run through a 12v regulated PSU, there's no problem at all... but for safety measures, I'll reconfigure my PSU to 9V (heck, RV-5 is expensive!)
question:I've read some posts from other forums that, some FRESH batteries has voltages exceeding 9V (I don't know if all of the brands of batteries has the same property) |
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12V regulated power supply for RV-5
