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Recent content by streetwise

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    Heathkit AA-161 Rebuild

    I will give that a try
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    Heathkit AA-161 Rebuild

    Not sure how to go about doing that the only thing ive noticed is there is no bass anymore all mid and treble. Electrolytics etc.. are original
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    Heathkit AA-161 Rebuild

    I will be rebuilding an AA-161; still works but the bass is completely gone. I bought a kit on the bay to save time but immediately found the parts to be incomplete missing electrolytic caps and haphazardly thought out; for instance C13 is part of the PEC and that was offered in the kit without...
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    Harman Kardon Citation 17 troubleshooting

    another question about the phono schematic the only variation between the two schematics is R15,R16,R39 & R40 are changed from 100 to 39ohm.. but why? also want to know this about the Output board, the only different values are R16,R17,R35,R36 change from 18 to 47ohm. R18 & R 37 change from 68...
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    Harman Kardon Citation 17 troubleshooting

    Luckily I found the issue, the opamps were all fine. I had the same issue after a recap of another preamp. The flux in the solder wasn't cleaned off the board. These boards have very close traces in a few spots and this causes some conductivity. after cleaning up the flux the static has...
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    Harman Kardon Citation 17 troubleshooting

    Ok, just curious what is the safe range of voltage? I have the older CA3100 opamps, is there a modern replacement for these? Thanks
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    Harman Kardon Citation 17 troubleshooting

    Hello all, Im trying to figure out my Citation 17 preamp, I had everything recapped and resistors replaced to 1% metal film around 10 years ago. the power supply has 16v on the 15v rails right now. does anybody know what resistor to modify to get this into spec? also one of my EQ boards is only...
    • streetwise
    • Thread
    • circuit board help citation 17 harman kardon troobleshooting
    • Replies: 7
    • Forum: Solid State
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    Schematic Diagrams of Crossovers for Jensen Imperial Speakers PR-100

    Yes 1.6MH inductor, 8uf cap, and im guessing 20ohm resistor. In the picture with the Jansen SP in the top left corner; The M1131EQ is most likely the parts in front of the mid out. I collected all these pictures from some Japanese websites using google search.
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    ALTEC 604 Duplex in original Residential cabinet 605 for sale

    Maybe as a collector, that is a rare piece of history. The 605 cabinet name is probably just using a consecutive number to the 604 driver. The 605A drivers didn't come out till the early-mid 1960s. The 605 residential cabinet was probably long forgotten by Atlec at that point.
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    Schematic Diagrams of Crossovers for Jensen Imperial Speakers PR-100

    hope these help someone
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    Official AR Turntable Owners Thread

    any recommendations for the foam inserts? I was thinking open cell foam like aquarium foam, Its been ages since I saw the original foam so I can't remember exactly what it looked like
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    Official AR Turntable Owners Thread

    Thanks Nashou66 for the link, so 3x 2" discs will do the trick
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    Official AR Turntable Owners Thread

    I just verified with Vinylnirvana "When the kit was initially designed by someone else other than me, yes, they were using Linn springs. However, those started to get really pricey, so I had some reverse engineered by a well-respected spring maker here in the us. So they are not technically...
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    Official AR Turntable Owners Thread

    thanks AR forum buddies! I will order from vinylnirvana and then order some dive weights for the suspension as another member has mentioned. My original springs are a little bouncy. I had set the table to the measurement between subplatter and plate the original manual mentions and this works ok...
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    Official AR Turntable Owners Thread

    now im as confused as before, Jose is saying the Linn springs have the 3lbs a la marcmorin, ChrisP is saying no weight needed for the audionirvana springs. in addition couldn't you tune the springs with 3lbs of weight and added height for the record clamp?
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