kit

[echo44]

Hi I am looking to build a "dumble" kit
have found no luck. I had a brown note on order for
ever and finally had to cancel my order,
any suggestions???

[T Wilcox]

Try contacting RJ to see what he can do to help.
http://www.rjguitars.net/Amp_Kits.html
You will still have to source a lot of components your self
Is this your first amp build?

Todd

[echo44]

I have built a few fenders
twin and a champ

[T Wilcox]

Cool man
Well nobody offers full kits that I know of at the moment but you can get the chassis, boards and iron from RJ maybe and then source the rest of the parts from places like mouser and such. I say maybe because RJ's site said available in limited quantities. I think the CE chassis are still available from JBorders as well!


Todd

[Luthierwnc]

There are also some BOM (materials) lists in the Dumble Files sections so if you do have to source parts, you have an idea what and where. They maybe a little long in the tooth given some of the mods that have crept into the vernacular but it is a worthwhile read for someone in your shoes. sh

[dreric]

I would suggest that you decide which model you want to make. The 124 is a common starter, here's a thread form someone using Rj stuff (which is very nice):

https://tubeamparchive.com/viewtopic.php?t=15814

Also, the CE chassis is excellent and ore conventional than Rjs. Search ce + chassis and you should get lots of responses. Jborders is a member who has made boards in the past, he's out of stock but I thinks he's planning another run around the holidays.

As it's been said you'll have to learn to source the parts yourself, that's half the fun!

Eric

[Bob S]

+++ on RJ for parts.
Check out Colossal's relay / power supply boards too - they are excellent.
And Have Fun

[Structo]

Hi Echo,
You didn't tell us where you live and that can determine where you can get parts.
If you are in the USA then there is a myriad of places to buy parts.
Mouser is good for resistors, jacks, bypass caps, relays, eyelets, etc.

If you aren't in a great hurry, it's kind of fun gathering all the parts for the build.

There are a few parts that are specific to these amps such as the Dale RN65D plate resistors and 6PS (polyester 600v) orange drop caps.
As far as the other resistors go, some say that carbon film is the way to go while others use metal film.
There are a few BOM's floating around the file section of the forum.

Antique Electronics Supply carries the 6PS caps as well as pots, F&T filter caps, switches.
http://www.tubesandmore.com/

I bought my Garolite G10 F4 circuit boards from Watts Audio.
If you order carefully, you can get all the sizes you need without cutting it which is nasty.
I attached a file that shows the board sizes.
http://www.turretboards.com/circuit_board_material.htm

Transformers are another point of contention.
Some say that vintage iron is best because it is "seasoned" while others say Mercury is the way to go.
Others use Heyboer.
Of course there is Hammond transformers.

For me, I wanted good quality but didn't want to take out a second mortgage so I went with a Magnetic Components Twin Reverb set.

Output transformer.
http://www.classictone.net/40-18013.html

Power transformer.
http://www.classictone.net/40-18004.html

Choke.
http://www.classictone.net/40-18003.html


For hook up wire a lot of guys prefer the Teflon insulated wire because it doesn't melt back when you solder it.
Same for the shielded cable.

Apex Jr. carries that at a good price. You can find other goodies there as well.
I like 20 gauge for most of the wiring.
For the filament wiring I used 18 gauge on the power tubes then 20 gauge for the preamp tubes.
http://www.apexjr.com/wire.html

I probably researched the 100w ODS for over a year before I felt confident that I could build one.

You will end up having to buy parts from more than one source.
But if you plan well you can minimize shipping charges.

This is where a lot of us got our chassis but I think they may be out of stock.
But it might be worth it to ask.
http://cepedals.com/Dumble-Style-Chassis.html

I also included a BOM that may not be complete but it gives the general idea of how many parts there are in one of these amps.

Hope this helps.

Good luck with your build.

[dcribbs1412]

Tom
just wanted to say nice informative post

Darin

[SoundPerf]

Just want to say that since you already have a few kits under your belt sourcing the parts yourself is a worthwhile way to go. It may seem a bit daunting at first glance, but with some patience it's doable. If you are in a hurry then maybe that's an issue. Although being in a hurry is probably not the best way to go about building an amp.

All the info on this site is very accurate which will let you feel confortable about things. The only part that is a PITA will be having to make a chassis from scratch if you can't find one already made.

Mouser is a good starting place. Learn how there sorting/inventory system works and use it. All the other places mentioned are great too and will be needed also. Mouser won't hve everything you need.

But above all, these amps are so worth building. Just today I was playing at home and had a chance to really crank it up for the first time in a long time. Actually the first time since I first built it about 9 month ago. I usually have to play at relatively lower level. I have turned it up a few times and gigged it a few times so far. But even at the gigs I played I had to keep it lower than it can really go. Although it sounds great at lower levels too, I totally got a new view of the amp. It was so incredible. Tons of tone!!

[CHIP]

Tom
just wanted to say nice informative post

Darin

I agree. That should put a first time D. amp builder in the right direction.

[odourboy]

Good post Tom!

... and contrary to popular belief, we have currently have some inventory of black chassis.

[echo44]

Wow Thanks everyone, I live in Chicago
I guess I have a lot of researching to do!

[M Fowler]

I had three of those CE chassis2 black and 1 silver but keep trading them for other stuff

Oh well easy come easy go I say! Nice chassis and worth getting.

[Structo]

Echo, Magnetic Components Inc. is based near Chicago at Schiller Park.
But I'm not sure if they retail transformers from there but it would be worth a call to find out.

http://www.magneticcomponents.net/index.html