Any interest in seeing some Dumble Tweed Deluxe photos?

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Charlie Wilson
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Charlie Wilson »

Tony, your description of the Tweedle Dee is pretty much right on with my impressions of the original one. I think Dumble has squeezed as much wattage out of this thing as is possible and still have it sound like a 5E3. I hope those that built it and are building enjoy it even if it is not too radical a departure from the stock amp. Chip, turn the amp up and adjust the trim pot until you get a sound you like.(that works for ODS also :D ) I say that because this particular amp was for a guy that played a Les Paul. The sweet spot may be different for whatever guitar you are using. Also, if you want to sweeten the front end(less gain also), try a 12AY7.
CW
CHIP
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by CHIP »

Thanks for your suggestions Charlie, I will try them.
Charlie Wilson
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Charlie Wilson »

Bonus picture. Dumble Champ!
CW
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Last edited by Charlie Wilson on Tue Jul 29, 2014 4:53 pm, edited 1 time in total.
CHIP
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by CHIP »

Oh my! Cool deal, Charlie. Thanks again!
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mhartman
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by mhartman »

Charlie Wilson wrote:Bonus picture. Dumble Champ!
CW
Oh man Charlie -- that rocks! Thank you. Do you have a pic of the power side of the chassis (I know...I'm probably getting greedy ). What speaker was in the champ?
Charlie Wilson
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Charlie Wilson »

Speaker was the stock Oxford Alnico and transformers were stock.
CW
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mhartman
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by mhartman »

Charlie Wilson wrote:Speaker was the stock Oxford Alnico and transformers were stock.
CW
Thanks! Looks like Dumble liked the stock circuit -- it is really close to a 5E1, but with upgraded components and more filtering.
Charlie Wilson
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Charlie Wilson »

Yeah, check out the NFB resistor.
CW
vibratoking
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by vibratoking »

Charlie, thanks once more. The hits just keep on coming with you. Can't wait to see what else you have up your sleeve.
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mhartman
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by mhartman »

Charlie Wilson wrote:Yeah, check out the NFB resistor.
CW
You've got a point there... My fuzzy old layout looked like 2.2k stock instead of 22k. That is quite a change!
Zippy
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Zippy »

mhartman wrote:
Charlie Wilson wrote:Yeah, check out the NFB resistor.
CW
You've got a point there... My fuzzy old layout looked like 2.2k stock instead of 22k. That is quite a change!
I recall the NFB resistor as 22k. I see this one as 27.4k - more of a tweak than a big change. He also added a 25 mF bypass cap on V1a cathode.
Charlie Wilson
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Charlie Wilson »

Yeah, I guess that is 27.4k with the stock being 22k. It has been a while since I looked at these pictures. I guess at the time I misread the resistor as 270k.
CW
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mhartman
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by mhartman »

Zippy wrote:
mhartman wrote:
Charlie Wilson wrote:Yeah, check out the NFB resistor.
CW
You've got a point there... My fuzzy old layout looked like 2.2k stock instead of 22k. That is quite a change!
I recall the NFB resistor as 22k. I see this one as 27.4k - more of a tweak than a big change. He also added a 25 mF bypass cap on V1a cathode.
Ahh, I wrongly read it as 2.74k. Damn 6 band resistors...
Last edited by mhartman on Tue Jul 29, 2014 5:42 pm, edited 1 time in total.
Zippy
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Zippy »

It's all good, Charlie. I find it interesting that Dumble choose not to go over the top with this lil' amp. Refinements...

Thank you for sharing.
Zippy
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Re: Any interest in seeing some Dumble Tweed Deluxe photos?

Post by Zippy »

mhartman wrote:
Zippy wrote:
mhartman wrote: You've got a point there... My fuzzy old layout looked like 2.2k stock instead of 22k. That is quite a change!
I recall the NFB resistor as 22k. I see this one as 27.4k - more of a tweak than a big change. He also added a 25 mF bypass cap on V1a cathode.
I read it as 2.74k. But, maybe I'm backwards on it?
I s'pose it's easy enough to read it upside down but I see 274 x 100 - 1% - 50 TC. Ref http://www.1728.org/resisclr.htm

27k makes more sense to me.
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