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Type: Posts; User: nakdoc

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  1. Thread: Favourite tuner

    by nakdoc
    Replies
    42
    Views
    2,210

    One I dearly love is the HK Citation 14. ...

    One I dearly love is the HK Citation 14.

    https://www.hifiengine.com/manual_library/harman-kardon/citation-14.shtml

    Sold one on consignment two years ago and it was the best sound I've ever...
  2. Replies
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    654

    I have no rarities...well I have a DMM LP of Mad...

    I have no rarities...well I have a DMM LP of Mad River's first album...but my treasures are two copies ...
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    16
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    643

    Opamps are environmentally sensitive to the...

    Opamps are environmentally sensitive to the surrounding circuit, and it is easy to cite one situation which creates audible differences in sound. Audio may be designed for limited bandwidth, say 1Hz...
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    16
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    643

    Hmmm. Too many disagree. First, many high end...

    Hmmm. Too many disagree. First, many high end designers use tricks like pulling the opamp's class B output stage down so it runs class A. Not every opamp can do this! In a sense, the designer is...
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    41
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    2,900

    PM sent on Tandberg and Sony PS4300

    PM sent on Tandberg and Sony PS4300
  6. Replies
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    954

    When an M85 burns small parts it is the tip of...

    When an M85 burns small parts it is the tip of the iceberg. I would not recommend you try to repair this yourself. Let's see if we can find someplace near you to get it running again. typically a...
  7. Not much different from an SX 3900 tuner section.

    Not much different from an SX 3900 tuner section.
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    973

    I don't believe a standard measurement method...

    I don't believe a standard measurement method exists. Certainly slew rate will limit transient response, but slew is a steady state measurement. Peak transient power, for example, might be an...
  9. Thread: PL 400 VU meter

    by nakdoc
    Replies
    41
    Views
    5,323

    Meter repair address: Hi tech Service, 2934...

    Meter repair address: Hi tech Service, 2934 Nolensville Pike, Nashville, TN 37211 615-331-9250

    I have two different types of 400 meters in stock too.
  10. Steven, if you talk while you read the woofer's...

    Steven, if you talk while you read the woofer's resistance, you'll see the number change. The woofer acts like a microphone and the voltage it produces changes the voltmeter reading.
  11. Buy a cheap ohm meter and measure the meter's...

    Buy a cheap ohm meter and measure the meter's resistance before you go nuts searching.
  12. The Apt is going to be quieter too. While it is...

    The Apt is going to be quieter too. While it is open, check to see if the output relay has been replaced. Typical replacement relays look like a kluge job, but that was what the factory told us to...
  13. Don't cry over spilled fluoroscan.

    Don't cry over spilled fluoroscan.
  14. Replies
    12
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    2,212

    How about picture essays: Grandmaster Flash

    How about picture essays:

    Grandmaster Flash
  15. that is a clean deck. I've heard of reel motor...

    that is a clean deck. I've heard of reel motor failures but never a capstan failure.
  16. Replies
    17
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    3,779

    When the old transistors were replaced with new...

    When the old transistors were replaced with new substitutes, the 400 and 700 both tended to oscillate all by themselves, leading to eventual flames.
  17. Steven, I'll sell the 900 to you for $25 plus...

    Steven,
    I'll sell the 900 to you for $25 plus shipping, which is about $30. It is missing the bias knob. One corner of the display plastic is cracked but the piece is still there. Fl display is ok....
  18. yes the 900 and 950 are similar. I am not enough...

    yes the 900 and 950 are similar. I am not enough of an expert to tell you what changed between the two.
  19. I have a CT-F900 with cracked glass, chipped...

    I have a CT-F900 with cracked glass, chipped wood, and a missing bias knob. It is perfect, except it isn't on your list. If you give up on finding a 950, this deck would be a compromise.
  20. Thread: PL 400 VU meter

    by nakdoc
    Replies
    41
    Views
    5,323

    I can repair PL meters with open coils at the...

    I can repair PL meters with open coils at the spring. I have a wonderful microscope and a steady hand.
  21. Replies
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    7,357

    I always felt critical of the carbon emitter...

    I always felt critical of the carbon emitter resistors that put the flame in Phase Linear. These could have been better parts.
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    752

    With SAE in general the top and bottom come off,...

    With SAE in general the top and bottom come off, then you have to fiddle around to get the wrap around rear black chassis separated from the faceplate. You probably unscrewed the power transformer....
  23. Replies
    7
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    2,013

    Ric, Bring it back in to Hi Tech. We had an...

    Ric,
    Bring it back in to Hi Tech. We had an issue with the other RT 707 too. The pinch roller washers may be installed improperly. Both decks had rebuilt pinch rollers.
  24. Replies
    157
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    20,178

    Caps are on the way. I'm using a few more NP caps...

    Caps are on the way. I'm using a few more NP caps than I originally intended. The NPs have gotten smaller and cost is about the same as polarized, so why not go for the best!
  25. Thread: NAD 7080 Find

    by nakdoc
    Replies
    14
    Views
    3,769

    I own Hi Tech Service here in Nashville. We seem...

    I own Hi Tech Service here in Nashville. We seem to be one of the only audio service centers in the state. Come by and visit!
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