JFET Dumbleator

[norburybrook]

Any one got any thoughts on this? As I've finished my 102 now (well in the respect it's all working , there's always tweaks) I think a dumbleator of some kind is in order.


seems like the guy who did this is confident it doesn't sound that different from the valve version.

Any one tried it?


Marcus

[ToneMerc]

At the request for a pedalboard application I played with KL version 2 which has the higher voltage charge pump power supply. I added an extra stage which increased the supply voltage to around 36-37 volts. The higher voltage version(v2) is less prone to clipping. Thus, if I was going toy with the FET version, I would not waste my time with this 9V version.

Honestly, I would not waste my time with the FET version period, build the vac tube version and never look back.

My 2 cents

TM

[Structo]

I agree

[vibratoking]

For a serial loop, I would use tubes, but that depends somewhat depends on what you plan to put in the loop.

For a parallel loop, either is effective IMO, but the FET version is much more transparent when designed correctly.


I'm in the minority regarding the Dlator. I don't feel it is necessary and I often use my Dclone without it. I just don't think it is a necessary item.

EDIT: deleted incorrect comment

[Teleguy61]

At the request for a pedalboard application I played with KL version 2 which has the higher voltage charge pump power supply. I added an extra stage which increased the supply voltage to around 36-37 volts. The higher voltage version(v2) is less prone to clipping. Thus, if I was going toy with the FET version, I would not waste my time with this 9V version.

Honestly, I would not waste my time with the FET version period, build the vac tube version and never look back.

My 2 cents

TM

Word.

[ToneMerc]

I don't feel it is necessary and I often use my Dclone without it. I just don't think it is a necessary item.

You are not alone as I have made the similar comments.The only D amp I use Lator on is my 183.

TM

[FUCHSAUDIO]

deleted

[vibratoking]

Sorry, not sure where you got this information, but it's incorrect. The Tube Fx loop and Verbrator are essentially the ODS loop in an outboard box with a 300 volt switchmode supply to run it off a 9-V adaptor. FWIW: The Casino amps have a FET follower on the loop output running at 200 volts and it's pretty darn transparent.

Sorry, Andy, I don't know where I got that either. From the depths of my bad memory I suppose. I deleted the comment in my previous post so as not to leave incorrect info, but I can't delete it from yours.

[FUCHSAUDIO]

Edited my post. All good, the internet sometimes gets things wrong I guess

[norburybrook]

I missed a few threads before they were deleted it seems.

I have AB'd through my friends #102 a valve dumbleator and bypassed to just the standard FX (Tc hall of fame and Spark delay) and I couldn't really tell the difference, he wasn't using the Dumbleator as a master volume so just a send /return for the FX , and I honestly couldn't reliably tell when it was the dumbleator or the direct FX, hence my thoughts on the Klein buffered loop.


I've got my TC hall of fame and delay on my regular loop from my 102 and it sounds great............................what am I going to gain with the expense and hastle of building a valve dumbleator?

marcus

[vibratoking]

I missed a few threads before they were deleted it seems.

I have AB'd through my friends #102 a valve dumbleator and bypassed to just the standard FX (Tc hall of fame and Spark delay) and I couldn't really tell the difference, he wasn't using the Dumbleator as a master volume so just a send /return for the FX , and I honestly couldn't reliably tell when it was the dumbleator or the direct FX, hence my thoughts on the Klein buffered loop.


I've got my TC hall of fame and delay on my regular loop from my 102 and it sounds great............................what am I going to gain with the expense and hastle of building a valve dumbleator?

You missed nothing in the deleted threads except incorrect information posted by me and a correction posted by Andy.


The Dlator could help with devices in the loop that have poor input impedance that result in the signal being compromised. I believe the HOF is a digital device. In a serial loop, your complete signal is ADCed and then DACed. In a parallel loop, your base signal stays analog the whole way and the effect is merged back in. IMO, the parallel loop is the best way to make use of certain effects - mainly time base effects. Works really well for verb and delay. Some guys don't like parallel loops, but I have always suspected that they don't understand them and/or use them to their disadvantage. YMMV.

What are you going to gain? Yup...good question.

[ToneMerc]

I've got my TC hall of fame and delay on my regular loop from my 102 and it sounds great............................what am I going to gain with the expense and hastle of building a valve dumbleator?

marcus

The first half of your response I believe answered your question....lol

TM

[norburybrook]

Indeed however I know you can use the dumbleator as a kind of attenuator too so I suppose I was just fishing around for thoughts on the matter. Looking at Robben Fords pedal board I wonder if he's using his Dumbleator any more, as he's using 2x HOF pedals and no rack gear. Can't remember if it's all going in through the front end though or if he has them on the loop.


Marcus