Search:

Type: Posts; User: Enzo; Keyword(s):

Page 1 of 18 1 2 3 4

Search: Search took 0.10 seconds.

  1. Replies
    5
    Views
    47

    When I was a service center for them, the...

    When I was a service center for them, the password was access. That was a while back, it may have changed.
  2. Replies
    5
    Views
    47

    Just a hunch: try password "access"

    Just a hunch: try password "access"
  3. Replies
    9
    Views
    134

    Or buy a cheap working stereo receiver at a yard...

    Or buy a cheap working stereo receiver at a yard sale and connect the computer to that.
  4. Replies
    7
    Views
    228

    You are right, it doesn't. But drivers are...

    You are right, it doesn't. But drivers are rarely time aligned on PA speakers. The voice coil on the tweeter is right near the baffle, while the voice coil of the woofer is maybe 8-10 inches...
  5. With TR1 off the board, there is no path for...

    With TR1 off the board, there is no path for current through LED2, the red one, other than something outside the circuit. That can only mean things like contaminated board, or some unrelated circuit...
  6. I mean no insult, but any chance the LED is...

    I mean no insult, but any chance the LED is simply passing light through from behind? I have been fooled like that before.

    otherwise, I agree with a Q-tip and some isopropyl..COuldn't hurt.
  7. Replies
    9
    Views
    271

    The clientele is aging out, but here in Lansing I...

    The clientele is aging out, but here in Lansing I used to do a lot of juke box work. Especially rebuilding old Seeberg amplifier units.

    Organ owners are also aging out. We used to have a full...
  8. Replies
    16
    Views
    316

    4.7k = 5k = same thing. You removed the rest of...

    4.7k = 5k = same thing. You removed the rest of the circuit in your drawing. Look at the original, it had a 5k pot at the bottom of the cathode circuit - the presence control. Replace the control...
  9. Replies
    41
    Views
    620

    Don't be afraid of the scope. Really all it is...

    Don't be afraid of the scope. Really all it is is a voltmeter on a screen, a visual voltmeter. As the voltage you are probing changes, the line moves up and down. So you use it like a volt meter....
  10. Replies
    2
    Views
    85

    Agree, the red plating tubes probably blew the HV...

    Agree, the red plating tubes probably blew the HV fuse.
  11. Replies
    5
    Views
    131

    I have no reason to suspect the special diode...

    I have no reason to suspect the special diode unless something specifically points to it as the failure.

    I agree often shorted outputs is as far as it goes... but not always.

    Shorted output...
  12. Replies
    15
    Views
    280

    I almost said something on that earlier. Is this...

    I almost said something on that earlier. Is this a Hot Rod DeVille or a Blues DeVille? The original Blues DeVille had no adjust, but the re-issue Blues DeVille does, as do the Hot Rods.

    Perk,...
  13. Replies
    4
    Views
    173

    I don't know who else might have done it, but I...

    I don't know who else might have done it, but I don't see it as a mistake. Note the OT is wired with C (common), 4 8, and 16 ohm taps. The speakers themselves do not reference to ground. You are...
  14. Replies
    15
    Views
    280

    Pin 5 of the power tube sockets MUST have bias...

    Pin 5 of the power tube sockets MUST have bias voltage roughly -50v.
  15. Did you just test for continuity, or did you test...

    Did you just test for continuity, or did you test for resistance?

    I am not a fan of replacing lots of parts. The LED is lit by current through it, the current is controlled by the transistor. ...
  16. Replies
    15
    Views
    280

    There is a test point on the corner of the socket...

    There is a test point on the corner of the socket board, factory setting is 60mv. What does yours read? And did you adjust it with each set of tubes?
  17. Replies
    2
    Views
    94

    He asked this elsewhere, and I suggested that the...

    He asked this elsewhere, and I suggested that the trem coming and going sounded more like a failed connection to me.
  18. Replies
    17
    Views
    341

    I am also in my 70s, and I do enjoy cheesecake,...

    I am also in my 70s, and I do enjoy cheesecake, at least the eating kind. (Make your own double entendre)

    I just stuck with the plain blue with lit window that came with Windows 10.

    Left on my...
  19. Replies
    15
    Views
    3,167

    Hi Jimmy. I am glad this old thread was...

    Hi Jimmy. I am glad this old thread was helpful, but please start a new thread for your amp. It gets confusing when more than one repair is in the same thread.

    If function comes and goes it...
  20. Replies
    34
    Views
    621

    The signal is present on all the taps whether you...

    The signal is present on all the taps whether you use the tap or not. NFB is taking the output signal and feeding it back. The different taps have of course different levels of signal. They chose...
  21. Replies
    5
    Views
    174

    Also, connect a different speaker to it and try. ...

    Also, connect a different speaker to it and try. A broken tinsel wire on a speaker, or a rubbing voice coil could do this.
  22. I only see the pics in post #2, and the empty...

    I only see the pics in post #2, and the empty small xstr spots look to me to have the B in the center. Are they TO92 or are they round ones?
  23. Replies
    9
    Views
    219

    I got nothing against rebranding. I knew when I...

    I got nothing against rebranding. I knew when I bought SOvtek or JJ or Chinese tubes from Ruby that they were burned in and tested, plus they warrantied them.
  24. Replies
    9
    Views
    219

    Yup, Fender doesn't make tubes, they buy them...

    Yup, Fender doesn't make tubes, they buy them rebranded from a number of suppliers.

    I was under the impression that TAD was like Ruby/Magicparts, they don't make tubes either. I thought they sell...
  25. Thread: B&K 440 CRT

    by Enzo
    Replies
    3
    Views
    95

    It is a picture tube tester...period. It checks...

    It is a picture tube tester...period. It checks CRTs from TV sets, video monitors, and the like. it will test them, and can rejuvenate them. The electron guns weaken over time, the image gets dim....
  26. Replies
    15
    Views
    270

    Seriously, call them anyway, they may know...

    Seriously, call them anyway, they may know exactly which tweeter they carry matches.
  27. Replies
    15
    Views
    270

    I recommend you CALL them on the phone, unless...

    I recommend you CALL them on the phone, unless you see what you need right away. Most places have more stock than what shows online. And they may have cross references that are not online.
  28. Replies
    6
    Views
    142

    Or take the materials to a reconer and have them...

    Or take the materials to a reconer and have them do it. I never reconed them myself, I always relied on an honest to god JBL reconer.
Results 1 to 28 of 500
Page 1 of 18 1 2 3 4