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  • Capacitor question

    I just repaired a Fender Blues Jr, which had intermittent static noise...noise that would get significantly louder as the reverb pot was turned up. C23 in the reverb circuit was leaking electrolyte, so I replaced it...and I swapped out the TL072 IC while I had the PCB out, put in a socket for the IC as well. I couldn't find a .47uF/100V electrolytic cap locally, so I put in a mylar cap of correct value instead. It seems to be working normally...is there any problem with not using the electrolytic cap? Thanks for your input.

  • #2
    Originally posted by acorkos View Post
    is there any problem with not using the electrolytic cap?
    No problem at all. IMHO it's better quality than electrolytic, at least it will never leak spuzz (electrolyte) as another cap in that amp already has.
    This isn't the future I signed up for.

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    • #3
      thanks

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      • #4
        "Spuzz". Ha, good one.

        I usually call capacitor shit "schmegma"

        Get alot of stuff at work with cap crap leaked all over making a nasty mess.

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        • #5
          Originally posted by Leo_Gnardo View Post
          No problem at all. IMHO it's better quality than electrolytic, at least it will never leak spuzz (electrolyte) as another cap in that amp already has.
          "spuzz!" you've invented a new word. I like it
          Experience is something you get, just after you really needed it.

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          • #6
            Originally posted by nickb View Post
            "spuzz!" you've invented a new word. I like it
            Aw heck no, I got "spuzz" from Bob Bradshaw, the effects-switching system wizard. Also heard it used by John Campion, founder of ShowPower and now quite the successful executive. Once again I stand on the shoulders of giants, and happy to give them credit.

            In any case, beware that capacitor spuzz/schmeg, it's generally sodium hydroxide plus other mystery chemicals, none of 'em good for ya. And corrosive besides.
            This isn't the future I signed up for.

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            • #7
              And be careful how and where you use the word "Spuzz."
              Reference the Urban dictionary definition at Urban Dictionary: spuzz

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              • #8
                Same goes for "spooge." And probably every other word we use to describe cap goo. "Electrolyte" sounds too much like "what plants crave."

                Justin
                "Wow it's red! That doesn't look like the standard Marshall red. It's more like hooker lipstick/clown nose/poodle pecker red." - Chuck H. -
                "Of course that means playing **LOUD** , best but useless solution to modern sissy snowflake players." - J.M. Fahey -
                "All I ever managed to do with that amp was... kill small rodents within a 50 yard radius of my practice building." - Tone Meister -

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                • #9
                  Originally posted by Tom Phillips View Post
                  And be careful how and where you use the word "Spuzz."
                  Reference the Urban dictionary definition
                  Yeh I know. It does make for a laugh. And we were using it wayyyy before Urban Dictionary was born.

                  Besides, it lends itself to colorful and amusing portmanteau usages. "When I looked in that old Fender's doghouse, it was spuzz-o-rama!" You shoulda seen that cap turn into a spuzzrocket after I hooked it up backwards!

                  Besides, UD seems to concentrate on those kind of definitions. When did you ever see anything technical in there?

                  While we're at it, there's a similar old tech word that was used apparently decades before I started looking inside chassis: spudge/spudging. As in "this tool is useful in spudging." Apparently it means adding extra component leads to an already soldered connection. For instance on a tie strip, when you melt the solder, poke a hole thru it so the new lead can be placed. Find that one in your UD. Or anywhere else. I got my fave spudging tool, how about you?
                  This isn't the future I signed up for.

                  Comment


                  • #10
                    I also have a ziploc bag full of spudgers. I used them to replace the screen on my Kindle. Spudgers come in metal and a variety of different floors and shades of plastic... they're used for prying apart tight spaces without marring the surfaces of the components.

                    Justin
                    "Wow it's red! That doesn't look like the standard Marshall red. It's more like hooker lipstick/clown nose/poodle pecker red." - Chuck H. -
                    "Of course that means playing **LOUD** , best but useless solution to modern sissy snowflake players." - J.M. Fahey -
                    "All I ever managed to do with that amp was... kill small rodents within a 50 yard radius of my practice building." - Tone Meister -

                    Comment


                    • #11
                      Well... UD has "Balls to the wall" basically defined correctly. I remember a female coworker acting offended, or at least surprised, when I used the expression in a status meeting ~30 years ago. Reference Urban Dictionary: balls to the wall

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                      • #12
                        I first became aware of UD when travelling through rural Ohio and passed Fangboner Road

                        Apparently, Urban Dictionary is crowdsourced and accepts odd, unreasoned, and otherwise juvenile entries. The definitions at UD don't even make sense. It's a shame to take a colorful and potentially interesting term and reduce it to such rubbish. It clearly has nothing to do with vampires. sigh.
                        If it still won't get loud enough, it's probably broken. - Steve Conner
                        If the thing works, stop fixing it. - Enzo
                        We need more chaos in music, in art... I'm here to make it. - Justin Thomas
                        MANY things in human experience can be easily differentiated, yet *impossible* to express as a measurement. - Juan Fahey

                        Comment


                        • #13
                          Originally posted by Tom Phillips View Post
                          Well... UD has "Balls to the wall" basically defined correctly. I remember a female coworker acting offended, or at least surprised, when I used the expression in a status meeting ~30 years ago.
                          Isn't there always someone around to be offended? Seems to be such a today thing what with our current crop of "SJW's" and special snowflakes . . . but no it's been going on since forever. Maybe your coworker had just been to an AC/DC concert? It's kind of kool when the tables are turned, and a woman uses these figures of speech. That's when the stiffs start to choke, aherrrrrmmmm.....

                          Well I guess we solved the OP's problem awhile ago, on to better things. Got a '70 Major here needs a new kit of KT88's.
                          This isn't the future I signed up for.

                          Comment


                          • #14
                            I had a female office manager not speak to me for a year once because I said she was being "anal" about one of my invoices. I finally aske her what her issue was? She said I had called her an asshole. I told her it was a fuedian term for being over meticulous to detail. Then she wouldn't talk to me because I had insinuated she was stupid evidently. Sometimes you just can't get past certain phrases.

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                            • #15
                              Originally posted by olddawg View Post
                              I had a female office manager not speak to me for a year once because I said she was being "anal" about one of my invoices. I finally aske her what her issue was? She said I had called her an asshole. I told her it was a fuedian term for being over meticulous to detail. Then she wouldn't talk to me because I had insinuated she was stupid evidently. Sometimes you just can't get past certain phrases.
                              If it's anything like the office where I work, there are certain people who cannot accept the idea that they are not always right, all of the time. And, yes, slipping a vocabulary word that they don't understand into the conversation is a sure-fire way to raise their hackles.
                              If it still won't get loud enough, it's probably broken. - Steve Conner
                              If the thing works, stop fixing it. - Enzo
                              We need more chaos in music, in art... I'm here to make it. - Justin Thomas
                              MANY things in human experience can be easily differentiated, yet *impossible* to express as a measurement. - Juan Fahey

                              Comment

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