paisley drive volume
I built a paisley drive a little while back and although it's a great pedal it wasn't quite loud enough to keep with my other drives and maintain a consistent volume when switching between them. So when compering circuits with my rockbox boiling point which is similar I noticed the paisley had a 100r input resistor and the BP did not , so I decided to experiment and put a jumper instead of the 100r and at the 100r out the output. While I had the circuit open I also doubled the clipping diodes [ which to my understanding allows more clean sound before clipping making it seem louder] . After plugging the pedal back I was happily surprised that there was a measurable volume increase, enough to put the paisley back on my board. My question to those more knowledgeable is will/can this hurt the circuit or any pedals after it? If this is ok it seems to be a worthwhile mod.
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- hbo
- Breadboard Brother
Information
The 100ohm resistor shouldn't affect volume noticeably, but as you've discovered the clipping diodes will. Swapping them out is not a problem; keep them if you like the sound
Cool ,thanks , I've toyed with diodes before but didn't realise it would make this much difference to volume .I'll be keeping it this way now.
- bato001
- Resistor Ronker
The 100r resistors are there for filtering. You alter the sound of the pedal a little when you remove them and gain almost no volume as written above already. Looking at the circuit diagram there is a current booster before the output that should have compensated for any volume loss. Make sure the jfet is actually functional.
"Ever wondered how some of your favourite guitar players got their tone? Me too. Probably a good amp and lots of practice." Little Lord Electronics Homepage
Thanks , the jfets are ok it just wasn't quite loud enough to match the volume of my other pedals so I have a consistent volume across my board , based on what you said I have put the 100r back in but left the extra diodes in and the volume didn't go down so I am happy .thanks for the helpbato001 wrote:The 100r resistors are there for filtering. You alter the sound of the pedal a little when you remove them and gain almost no volume as written above already. Looking at the circuit diagram there is a current booster before the output that should have compensated for any volume loss. Make sure the jfet is actually functional.
- zedsnotdead
- Breadboard Brother
Hi!!
sorry for the necro!
Sorry for my noob question, but wouldn't increasing R15 (feedback resistor) do the trick and increase volume??
sorry for the necro!
Sorry for my noob question, but wouldn't increasing R15 (feedback resistor) do the trick and increase volume??
- mictester
- Old Solderhand
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Yes it would.
"Why is it humming?" "Because it doesn't know the words!"
- zedsnotdead
- Breadboard Brother
Thank you mictester!
I wonder what would be the right R15 so to make this pedal louder, but avoiding signal clipping on that stage...
Is there a way to calculate it? Just an aproximation maybe....?
I wonder what would be the right R15 so to make this pedal louder, but avoiding signal clipping on that stage...
Is there a way to calculate it? Just an aproximation maybe....?