My first attenuator: I had an Orange OR120 w/ 2 4X12's when I was young and dumb (now I'm just dumb) Had to use both cabs or you'd blow speakers. Louder than Hendrix on white windowpane. So when I was in my junior year high school Radio & TV class, I got the bright idea of soldering a 16 ohm TEN WATT wirewound resistor to a phone plug to act as a dummy load. As usual, the dummy was yours truly! I had the whole contraption wrapped up in electrical tape and about halfway into the first set, MAXIMUM SMOKE! "All part of the show, y'all". In my infinite wisdom, I also used to use the 'Premium' Radio Shack FREE REPLACEMENT LIFETIME TUBES! What a BARGAIN! I was down there at least once every coupla weeks til the guy said he couldn't get any more EL34/6CA7's.
Post by benttop (Steve) on Apr 13, 2006 9:28:19 GMT -7
I actually built my first attenuator in 1975. I used an enormous 250 Watt Rheostat. And it worked great - got pretty hot though. And I couldn't figure out how to get it to go out of the circuit at full twist, so with the attenuator in the most you could get out of your amp was -3db. But I sold it to a buddy of mine and he used it with his 100 Watt Marshall for years!
The first commercially available one that I remember was the 'Altair', I think its the one that Jim Kelley used on his early amps. Then the Power Soak by 'Polaroid SX-70 Land Camera' pioneer/Rockman inventor/Boston Rockstar/ Tom Scholz. Then the Marshall Power Brake and THD Hotplate I guess.
Post by billyguitar on Apr 13, 2006 13:16:23 GMT -7
I did a dumb thing once. I had a Mesa Mark III and I was trying to get a little more give in the output. I strapped a 10 MFD capacitor across the speaker terminals. I liked that I could turn the treble up on the amp and let the cap take it back out. I liked the sound of it that way. Anyway at the first gig I heard what sounded like a gunshot go off in the back of the amp and the amp went dead. I knew what it was I had blown up that cap. I immediately shut the amp down and reached around the amp and pulled that cap off. I turned the amp back on and played out the rest of the night. I did that all during the tune so I probably only missed about 12 bars. The cap was only rated for 35 volts, that's why it blew. I never tried that again! Later I used the dreaded Sholz with that amp. It didn't help that amp either, I don't think anything could.
The Bad Poodle: rutabay-ayga... rutabay-ayga
Oct 2, 2019 12:33:25 GMT -7
"Z" Steve: I'm losing status at the high school - I used to think that is was MY school
Oct 8, 2019 15:01:34 GMT -7
The Bad Poodle: A bunch of pom-pom girls, Looked down their nose at me. They had painted tons of posters, I had painted three. I hear the secret whispers Everywhere I go, My school spirit is at an All time low...
Oct 8, 2019 17:11:32 GMT -7
"Z" Steve: Oh Look! My hair is getting good in the back!
Oct 10, 2019 20:48:05 GMT -7
GuitarZ: Argghh! ETA for power is Sunday midnight. Thank you for giving us all a place to vent. At least we have a generator and our house suffered zero damage from the storms.
Nov 1, 2019 13:25:37 GMT -7
Ed M.: Yup generator is humming along.....
Nov 1, 2019 13:45:12 GMT -7
GuitarZ: Yea! Our power's back on. They beat their estimate by two days! Yea!!!!!! Let's hope you're right behind Ed M.
Nov 1, 2019 18:15:14 GMT -7
roscoenyc: Almost every piece of gear I have except for my tuner has at least one knob. Those are for adjusting. PSA for the "too much bass" crowd.
Nov 14, 2019 9:10:34 GMT -7
The Bad Poodle: cause we all know Too much bass increases "tube rattle"....
Nov 14, 2019 11:23:20 GMT -7
roscoenyc: Oh my goodness!!!
Nov 14, 2019 11:24:11 GMT -7
GuitarZ: They say you should be on the same page about kids before you get married. I really think you ought to talk about expectations on outdoor Christmas/Holiday lights. That could have been a game changer.
Dec 7, 2019 13:38:37 GMT -7