Guidance

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hipbluescat
Posts: 69
Joined: Sun Oct 15, 2006 11:41 am

Guidance

Post by hipbluescat »

Hello

I have been reading and posting on this forum for a while and require some guidance in relation to the starting my first Dumble amp.

I intend on building a Hybrid A model to get a simular sound to Robben Ford.

Can someone confirm or please post an accurate circuit and layout diagram.

I have found some circuits and here is the link

https://tubeamparchive.com/viewtopic.php?t=388

Will the above circuit work ?

In relation to chassis where is the best place to get one from. Please note that I live in Australia.

I have found a person who makes them in Bangkok has anyone used this chassis ?

Has anyone got any other tips in making these type of amps ?

Regards
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Bob-I
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Re: Guidance

Post by Bob-I »

The D-Lite is a better choice. This schematic has been tweaked and has been tested many times. The only thing missing is the relays and relay supply for switching, but look around, you'll find these schematics around too.

https://tubeamparchive.com/viewtopic.php?t=2528
dogears
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Re: Guidance

Post by dogears »

I think my HRM circuit sounds much more like Robben to me....

Having said that, if you feel the Hybrid A style is for you, I'd use the ODS101 schematic and not the Dlite as there are some feedback and tonestack departures in the Dlite that make it less Robben to my ears... Especially the 6V6 output.

Unless you just want to buy a Dlite kit. Email the guys and tell them what you are after. They know what to recommend.
hipbluescat
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Re: Guidance

Post by hipbluescat »

Hello

I have listened to tobykea clip and I am quite impressed.

I think from previous posts with Bob I that he also explained the difference between the various circuits in this link

https://tubeamparchive.com/viewtopic.ph ... sc&start=0

Bob I have found that you have posted the HRM diagram but I can not get access to it. Can you please post it again.

Has any got the layout diagrams ?

dogears where are the guys that sell the Dlite kits ? I never thought anyone sells kits for these amps.

Regards
tkdrew
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Re: Guidance

Post by tkdrew »

Here is Brownnote's site, I didn't see the kit listed with the others he offers so just shoot him an email or ask in the forum over there. I built one from scratch and I have to say it is not exactly Ford or Carlton's tone but is definetly in the same vein. It has its own vibe which I think is very cool in it own.
http://brownnote.net/index.php
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odourboy
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Re: Guidance

Post by odourboy »

You have to dig a bit... but here's a link to the D-lite kit offerings:

http://store.bnamp.com/dlitekits.html
"Let's face it, the non HRMs are easier to play, there, I've said it." - Gil Ayan... AND HE"S IN GOOD COMPANY!

Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html
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Funkalicousgroove
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Re: Guidance

Post by Funkalicousgroove »

If you can wait a little bit I will hav chassis and boards available again around August to build dead-on clones. The chassis that I sell are sans-logo of course. I also will have cabs, trannies, and parts. I usually buy in bulk to get good prices, then I sell off what I don't need here on the board for what I paid so everyone wins.
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Owner/Solder Jockey Bludotone Amp Works
Sven
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Re: Guidance

Post by Sven »

Greetings,

In a january 2007 post, ¨'67_plexi¨ wrote:

¨The HRM is a bit more gainy with a more modern feel than the non-HRM. The HRM clean sound is virtually unimaginable from a set of EL34's. It's the best of any amp I've played.¨ -- end quote.

What is the meaning of ¨the HRM clean sound is virtually unimaginable from a set of EL34's¨?

a) Is it that one cannot get clean sound from HRM with EL34's or,
b) that the clean sound from HRM with EL34's is so excellent that one cannot even imagine its excellence (without hearing it)?

Obviously, I would look for ¨b¨ explanation of the above statement. Any clarification is welcome. Thanks.

Sven
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odourboy
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Re: Guidance

Post by odourboy »

Funkalicousgroove wrote:If you can wait a little bit I will hav chassis and boards available again around August to build dead-on clones. The chassis that I sell are sans-logo of course. I also will have cabs, trannies, and parts. I usually buy in bulk to get good prices, then I sell off what I don't need here on the board for what I paid so everyone wins.
Put me down on the 'definitely interested' list if there is such a thing. But just to clarify, which amp is this a dead-on clone of?

Cheers, Brian
"Let's face it, the non HRMs are easier to play, there, I've said it." - Gil Ayan... AND HE"S IN GOOD COMPANY!

Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html
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stoo
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Re: Guidance

Post by stoo »

Funkalicousgroove wrote:If you can wait a little bit I will hav chassis and boards available again around August to build dead-on clones. The chassis that I sell are sans-logo of course. I also will have cabs, trannies, and parts. I usually buy in bulk to get good prices, then I sell off what I don't need here on the board for what I paid so everyone wins.
Ya I might like a piece of that action too!
Stew
roadkingbluzs
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Re: Guidance

Post by roadkingbluzs »

I would also be interested in offering by Funkalicousgroove (50 Watter?) Presently waiting for D-Lite kit and, seems like an excellent platform for novice builder as myself then jump into something more involved. Good luck hipbluescat on your build. Bob
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brownnote
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Re: Guidance

Post by brownnote »

I'd be interested too...
I've been wanting to build a full-on 100w Dumble replica (maybe by Aug I'll have time),
Are you doing all the boards? Fiber and PCB?
Interested in circuit details too...is it the HRM like your amp?
thanks!
Remember kids...Always adjust for minimum smoke!

D'Lite Kits: http://store.bnamp.com/dlitekits.html
hipbluescat
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Re: Guidance

Post by hipbluescat »

Funkalicousgroove

I would like to get the parts from you.

I can wait until August.

Do you have a schematic and layout diagram ?

Look like other people also want to me on this !

Regards
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Funkalicousgroove
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Re: Guidance

Post by Funkalicousgroove »

the amp in the pictures is an HRM, although an 80's amp works just fine as well.

My chassis are an amalgamation of different ODS's that I've seen the guts of, but is is closest to a late 90's (#218 I believe). To save everyone time and money I had them powder-coated instead of annodized, and I took a couple liberties here and there.

You can do them 100% PTP if you'd like, I prefer to do them PCB and Eyelet board construction, I prefer the precision power section with the totem poled caps and that is MUCH easier on a PCB IMHO.
Owner/Solder Jockey Bludotone Amp Works
roadkingbluzs
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Re: Guidance

Post by roadkingbluzs »

Mr. Funk......, are you still on track for chassis /parts offering in August? Also who would you recommend for face plates? Bob
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