Attenuator Layout

[bnwitt]

PM

[jem]

Ok, here is the layout for the resistive attenuator. Those of you who have built it please review and let me know if there are any errors.

I haven't built it (yet), but nice drawing, everything except the jacks and knob!. Thanks!

[toneman]

Excellent work, thank you. Built one awhile back and like it.

[benoit]

I mostly understand whats going on here - the 6 position rotary just decreases the resistance by 5 ohms every click from 1 to 6, right? So then what is the rheostat for? Is that just an internal fine adjustment, or how does that come into play?

[toneman]

It's for (Bedroom level) it's when the kids are sleeping and the wife is sleeping. TONE is hampered after the first two graduations. But when at home most of us can't play that loud anyway. The only way to get the TONE is by cranking it up. Unless you use a isolation cab and record.It does have a viable use though........

[bnwitt]

Excellent work, thank you. Built one awhile back and like it.

toneman, could you look at the wiring and the jumpers on the rotary switch and let me know if they are correct?

[toneman]

Shure but it might be a day or two.. working 12 hr shift right now. VACATION next week WOOOOHHOOOO. Bought damn time

[toneman]

Removed per request, sorry Finally took some pics. If you need them please pm.

[bnwitt]

yes, I have that drawing and the little grey connectors on the rotary switch are a little blury.

[benoit]

It's for (Bedroom level) it's when the kids are sleeping and the wife is sleeping. TONE is hampered after the first two graduations. But when at home most of us can't play that loud anyway. The only way to get the TONE is by cranking it up. Unless you use a isolation cab and record.It does have a viable use though........

I get what the device does, and I get what the rotary switch is doing. My questions are:

1. How does the rheostat function - the more you say about that the better.

2. What function does that cap serve?




Ben

[Guy G]

Beautiful, as usual.
I cant wait for that d@mble your planning

[Drumslinger]

nice job bnwitt!

[brownnote]

Kudos for getting fired up enough to crank out some layouts Barry...just want to give another shout out...Norm did this layout a year ago and a bunch of these have been built...there are some great layouts around if you look...including dumbles.

[bnwitt]

Thanks fellows. I'm looking forward to the Dumble too

[bnwitt]

..there are some great layouts around if you look...including dumbles.

Brownnote,
where would I find the best dumble layouts?