Do All New '68 DRRI Have Reverb Hum?

try wrapping some copper shielding tape around the reverb tank.

 

Who maxes the reverb on a Fender amp? Halfway is already more reverb than I could ever use!

 

65 deluxe reverb's do that also, so no worries, you activate all that cable in the back like an antenna when you turn up the reverb,

 

I don't mean this to come across as an accusation or snotty but the DR is a gig amp. Little noises cannot be heard when playing at any decent volume and PA hiss and crowd talking swallow them even when not playing. Some noise is normal when turning the reverb up in every tube amp I've tried.

I can't imagine what useful sounds come when maxing the reverb on a DR. Seems like it would swallow everything up, but hey, it's your jam.

My suggestion, if you want to max out the reverb and play at very low volume at home, would be to get a Yamaha THR 10 (the reverb is way too pronounced for me even in the lowest setting) or Roland Micro Cube or the like. Or get a digital reverb pedal.

 

I agree with Mart the Hat and MilwMark, the hum at max reverb is normal and isn't a problem.

 

Even the old BF/SF amps hum cranked like that. I'm in the "who cranks the reverb that high?" camp.

 

Duane Eddy is still alive, isn't he?

 

"Doctor, doctor, when I stick this pencil all the way into my ear, it hurts! What should I do?"

 

As is Dick Dale.

 

actually Duane Eddy used a big water tank for that reverb, or is that just a myth? of course he did not gig with a 20 foot water tank, or maybe he did, never seen the dude, but i like 40 miles of bad road,

 

It is perfectly normal for popping noise when put on Standby. On my 68 DR. Also wait till the tubes and speaker break in and it will be much quieter.

 

My 65 DRRI does it too - in some cases, if it's positioned against the wall in a rehearsal room and the reverb is turned up too high it will even start feeding back. Turning off the reverb kills the feedback. It's just a part of the reverb circuit I think, you're adding length to the signal as well as running it through some vibrating springs. It's going to pick up noise.

My external reverb tank is even worse at high levels.

 

for $1000 new there should be no hum. Several of my friends have already replaced the reverb tanks and still have some hum. They keep the reverb a tad less than they want to eliminate it.

 

This should help I hope

 

I would think that's because it's just a fact of audio life, not a fault in the circuit. I always wonder in what settings people are playing where "noise" actually creates problems.

 

Fender had a problem with installing the Reverbtanks backwards which causes the condition you discribed. Carefully unplug and
Flip unit 180. It fixes the problem.