Hope this doesn't sound too stupid; I'm about to embark on a 102 ODS build. I have a chassis from Thailand and a head cab from a friend of similar dimensions as a an Dumble ODS.
Now, what's the best way to mount the chassis as at the moment it's blank and has no mounting holes.
I was thinking of using weld nuts but how do you mark on the head cab the drilling points to match up with the weld nuts? There's not a lot of room for error. Obviously if you could drill from the inside before it was made it would be no problem but there's no room with a completed head cab.
A right -angle drill helps in this case. Otherwise you could carefully layout the holes on the cab, drill them with a small bit and match these up with the chassis. If you look through the Dumble Discussion (I think), you can find a recent post from Charlie Wilson regarding the best way hardware-wise to mount a Dumble style amp. All sorts of good ideas there.
Tony
"Education is what you're left with after you have forgotten what you have learned" - Enzo
Hello, the way Jelle told me to do it was take a piece of paper and cut it the exact same dimensions as your chassis. Then mark on the paper exactly were your hole centers are. Then slide your chassis in the head cabinet just the way you want it mounted and measure from the front and side edges of the cabinet were it sits. Then lay your paper template on the top of the cabinet and align it using your measurements to mark the holes. You may have to make a cutout in the middle of your paper template were your handle is or remove your handle to mark your holes. Be careful drilling through the tolex, the bit can grab it and tear a ragged edge.
Hope that helps
CW
I use a paper doll as well. I make a correctly dimensioned drawing in a CAD program and print it out. Then I align that with whatever I need to transfer to.
Electronic equipment is designed using facts and mathematics, not opinion and dogma.
If you are not used to ordering a lot of parts online, it can be a challenge.
Probably everybody here has mistakenly ordered something they didn't need or want.
Check the specs carefully to avoid erroneous parts.
I'm sure somebody from UK or EU knows of other sources there.
norburybrook wrote:thanks Guys, I have a lovely Dumble clone chassis from Thailand that arrived this week.
Only issue I can foresee is as it's an exact clone there's no provision for a variable output impedance switch.
could I add one by the mains input, and run longer than normal wires to the output jacks, or will that cause issues with noise/interference etc?
Marcus
p.s. I'll start a new thread when I get going on this one as I'm sure there will be lots of questions....
Just put it on the FLOOR of the chassis, ( room allowing) right in front of the speaker jacks....much better place! OR stick it IN a speaker jack IF room allows, n put another jack on the FLOOR room allowing..
