SamDBL
Joined: Sep 19, 2016
Posts: 225
Tampa
|
Posted on Jul 12 2019 09:50 PM
When I plug it in, there is a hum/buzz. And the reverb effect is quite low. I knock it around a couple times and all goes back to normal. However, when I knock it, I get a very unhealthy crackle (as seen in video below). I checked all rca and instrument cables as well as tubes. I poked around inside with a wooden spoon and didn’t really hear anything activate. Any ideas?
— Guitarist for Black Valley Moon & Down By Law
|
the_devils_tool
Joined: Jul 09, 2018
Posts: 24
|
Posted on Jul 13 2019 07:49 PM
Maybe start with cleaning the RCA contacts? I did the same with my pedalboard and it cured a lot of problems.
|
beatcomber
Joined: Jun 30, 2019
Posts: 102
Massachusetts, USA
|
Posted on Jul 15 2019 03:32 PM
Also check the connections on the pan's transformers.
— Thee Original Beachniks...surf music from the caves of old Cape Cod!
|
eddiekatcher
Joined: Mar 14, 2006
Posts: 2764
Atlanta, GA
|
Posted on Jul 15 2019 08:13 PM
The RI reverb units were made with terrible input and output jacks. It doesn't take much more than stepping on a cable to tweak one into a life of intermittent failures. I've had two of the RI units that the jacks became intermittent. On the first one I traded the unit. On the second one I replaced the MIC jacks with real Switchcraft PC board mount units, but that was not an easy job. However, once I made the modification, no more problems with that unit. My original '65 just keep on keeping on. No issues what so ever.
Ed
— Traditional........speak softly and play through a big blonde amp. Did I mention that I still like big blonde amps?
|
Gilette
Joined: May 04, 2014
Posts: 734
|
Posted on Jul 15 2019 08:19 PM
-
Last edited: Mar 03, 2022 06:48:10
|
Gilette
Joined: May 04, 2014
Posts: 734
|
Posted on Jul 15 2019 08:20 PM
-
Last edited: Mar 03, 2022 06:47:23
|
MC
Joined: Aug 23, 2017
Posts: 47
Atwater California
|
Posted on Jul 15 2019 09:54 PM
You might try removing the tubes and applying contact cleaner to the pins. Reinstall the tube and remove it a couple of times. Also you can spray some WD40 into a small container. Apply the WD40 to your finger and rub it on to the tube pins and reinstall the tube. Repeat a second time if needed.
It sounds like one of the tube pins is not making a good contact in the tube socket. Not an uncommon problem with tubes.
Last edited: Jul 15, 2019 21:57:39
|
ludobag
Joined: Jun 05, 2010
Posts: 620
at south of
|
Posted on Jul 17 2019 01:22 AM
i have the same trouble last time i use mine
the sound become ridicously low and heard some crackle, i have sake it a little and then rework
for me it is bad contact with jack or tube only ,i will open it soon to see what s wrong but as i am not using a lot before (i use more my surfy bear for reharsale ,live gigs cause it weight less and i don't have to bring the converter),it could be dust or oxydation
thing you can do is to pull out tube and reput them and for the jack plug and un plug few times ,on mine i see also the controle crackle i turn the pot few time and it disappears ,i think it is a miss of use ,also the rca need to be look to see if they have no gap and have good contact
when i buy it used it have a hiss du to the 12at7 and swapping tube make me find the trouble ,if you have some spares tube it is not hard to try it and see if it resolve the trouble (i have some spare tube on my hand cause if it fail i would like to see if is just a tube fail before going to a tech ,tech is expensive and just for a swap of one tube not interresting !and also the travel for bring him the reverb and then he will says oh it is just your tube that fail)
on mine i have try to pull out the tube and reput in to check the pin ,but at first it is not that ,each time i sake it after the reverb disappears it come back ,i will open tomorrow and search for colder solder joint cause it make it when it is hot ,not at the beguin i play with it
find the trouble it is the tank who have a cold solder on a rca female ,works again great
Last edited: Jul 28, 2019 02:51:01
|
https://sunb...
April Birthdays 
