Dumbleator Layout

Dumble schematics, designs, pictures. Only members may post files here.

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norburybrook
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Re: Dumbleator Layout

Post by norburybrook »

Having just followed this layout, there is an error on the first two radial electrolytic caps, the polarity is the wrong way round. Exploding electrolytics aren't what you want at the end of a build :)




Marcus
jam-mill
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Re: Dumbleator Layout

Post by jam-mill »

norburybrook wrote:Having just followed this layout, there is an error on the first two radial electrolytic caps, the polarity is the wrong way round. Exploding electrolytics aren't what you want at the end of a build :)




Marcus
Building to the attached layout works fine and seems to be similar to what was originally posted here. So, I'm not so sure there is a layout error.
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John 15:12-13
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norburybrook
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Re: Dumbleator Layout

Post by norburybrook »

wish I'd seen that one first :D

check the very first post in this thread, first picture.

I always expect the original head of a thread to be the one with the most up to date layout.


Marcus
jam-mill
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Re: Dumbleator Layout

Post by jam-mill »

norburybrook wrote:wish I'd seen that one first :D

check the very first post in this thread, first picture.

I always expect the original head of a thread to be the one with the most up to date layout.


Marcus
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John 15:12-13
bluesfendermanblues
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Re: Dumbleator Layout

Post by bluesfendermanblues »

Never really understood why using a xformer with too little secondary voltage, anayway. Alternatively use two small cheap print xformers with the two secondary sides connected.

I use a 230v (in EU that is) primary with 12 volt secondary => into a 6 volt secondary of the 2nd xformer and get (almost) the double voltage on the primary, like 300volt. Besides feeding the 2nd transformer, the 12 volt ac secondary of the first transformer is used as heater voltage for the 12ax7.
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xenrelic
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Re: Dumbleator Layout

Post by xenrelic »

Here's the Triad R-2C power transformer spec sheet with dimensions for the Dumblelator.

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M Fowler
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Re: Dumbleator Layout

Post by M Fowler »

Thanks for the Data sheet very nice.

Here is a photo of box and transformer
R-2C.jpg
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M Fowler
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Re: Dumbleator Layout

Post by M Fowler »

New Clator layout using PCB
Clator-PCB-Layout.jpg
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Chris Brown
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Re: jacks

Post by Chris Brown »

angelodp wrote: Mon Nov 24, 2014 3:31 am Chris, in you version of the Dlator, it appears that you are grounding the jacks at the sleeve through their connection to the chassis. Some builds have discussed isolating the jacks. Have you had any issues your way…loop hum?

Ange
It's quite a while later but in case anyone wanders across this in the future, I did use isolated jacks.
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angelodp
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Re: Dumbleator Layout

Post by angelodp »

Hi, sorry if this is a dead horse, I am wondering if anyone has built the series/parallel unit as shown by Structo? I there any confirmation that the layout works?

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martin manning
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Re: Dumbleator Layout

Post by martin manning »

Member Klaus has posted a Boogie serial-parallel solution using just a 25k pot. You might check into that. https://ampgarage.com/forum/viewtopic.php?f=5&t=21205
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M Fowler
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Re: Dumbleator Layout

Post by M Fowler »

I built a Dumblelater using Structo's instructions (using stand-a-lone reverb PT) first and that works very well. Not the series-parallel one.

The 2nd unit I built from Ceriatone's version which also works well.

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Goldhedge
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Re: Dumbleator Layout

Post by Goldhedge »

Just curious if there's a BOM for this Dumbleator?

I looked around and don't seem to find one.

TIA
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talbany
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Re: Dumbleator Layout

Post by talbany »

norburybrook wrote: Wed Feb 11, 2015 5:06 pm wish I'd seen that one first :D

check the very first post in this thread, first picture.

I always expect the original head of a thread to be the one with the most up to date layout.


Marcus
Marcus
Sorry the original layout was not updated and what you expected. :lol:


Tony
" The psychics on my bench is the same as Dumble'"
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norburybrook
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Re: Dumbleator Layout

Post by norburybrook »

talbany wrote: Thu Jun 06, 2019 12:18 am
norburybrook wrote: Wed Feb 11, 2015 5:06 pm wish I'd seen that one first :D

check the very first post in this thread, first picture.

I always expect the original head of a thread to be the one with the most up to date layout.


Marcus
Marcus
Sorry the original layout was not updated and what you expected. :lol:


Tony
Tony,

That's an old post resurrection :D


Funnily enough I've got a box here with a dumbleator in it ready to be made so you must have some sort of voodoo powers of intuition going on! :D



M
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