Search:

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

Page 1 of 18 1 2 3 4

Search: Search took 0.03 seconds.

  1. Model T's are awesome for Bass, but require a...

    Model T's are awesome for Bass, but require a strong set of 6550's. Current prices in the 2K-3K USD range because they are hard to find. OT has a 2 Ohm tap and an impedance switch that won't melt....
  2. Replies
    34
    Views
    643

    The purpose of the diode is to limit the Voltage...

    The purpose of the diode is to limit the Voltage at the back panel test point (where the user can touch it) in the case that the resistor fails open for any reason.
  3. Replies
    17
    Views
    311

    Does the transformer have wires on both sides ?...

    Does the transformer have wires on both sides ? How are you going to deal with that ?
  4. Replies
    26
    Views
    631

    I'd knock those 47uF caps down to 22uF.

    I'd knock those 47uF caps down to 22uF.
  5. Replies
    8
    Views
    379

    It's very hard to protect the tweeter with a...

    It's very hard to protect the tweeter with a passive crossover system. You usually need to resistively attenuate the tweeter and add some type of limiter. In fact the first thing I would do is verify...
  6. The tremolo is just the opto type. If the opto...

    The tremolo is just the opto type. If the opto goes bad, you'll have to experiment to replace it. Some low value electrolytics in the LFO that go bad. Reverb is tube drive, solid state recovery.
    ...
  7. Worth about half that with non-original 2x10...

    Worth about half that with non-original 2x10 cabinet. It should have a 4x12 cabinet. Chances are it won't sell. Keep your eyes open for it to be re-listed in a month or two.
  8. Sunn transformers are not very corrosion...

    Sunn transformers are not very corrosion resistant. Fender transformers from the same era (mid to late 60's) are better. Going back to the Tweed Fenders, you see more corrosion. The Sunn chassis and...
  9. Replies
    31
    Views
    722

    A couple of things bothered me. 1) The diode...

    A couple of things bothered me.

    1) The diode drop at 1 Amp is closer to 1V than it is to 0.7V.
    2) The diodes distort the waveform with a dead zone around zero Volts.
    3) The peak of 6.3VAC is...
  10. What are MBB power relays ? I tried running...

    What are MBB power relays ?

    I tried running two 5E3 type amps into a stereo wired Marshall 4x12. Caused some kind of oscillation problem, but only when a note or cord was being played above a...
  11. My reasons for doing something like this are...

    My reasons for doing something like this are slightly different. I want to set up an experiment to see if people can tell the difference between two amps, one tube and one solid state. The problem I...
  12. Replies
    10
    Views
    535

    The reason you get a pop when you throw the...

    The reason you get a pop when you throw the switch is that there is DC on the feedback path that gets shorted to ground by the output transformer.

    Edit: Peavey used the same idea on their amps...
  13. Replies
    9
    Views
    309

    Does this version have a Hum Balance pot ? Is...

    Does this version have a Hum Balance pot ? Is this more of a buzz type hum, or a low Organ note type hum ? Check the pot if it's the low organ note type.
  14. I'm not sure, but shouldn't x-rays be effected by...

    I'm not sure, but shouldn't x-rays be effected by magnetic fields ?
  15. I bought a pair of Electrovoice EVM-10s on ebay....

    I bought a pair of Electrovoice EVM-10s on ebay. When they arrived, both needed to be re-coned because they had rubbed together. Judging from the condition of the package and conversations with the...
  16. I don't see the numbers you quoted for the GZ34...

    I don't see the numbers you quoted for the GZ34 on the data sheet you linked, and it would be a better idea to quote the numbers from the 450 VRMS column so you are comparing apples to apples. In...
  17. Replies
    7
    Views
    430

    What safety approval logo's does the amp have ?...

    What safety approval logo's does the amp have ? UL, CE et al ...
  18. Replies
    26
    Views
    717

    I was doing sound for a jazz band with a 3 piece...

    I was doing sound for a jazz band with a 3 piece horn section. A bar tender at one particular bar complained that the band was too loud. I went out and purchased a SLM from Radio Shack, the very...
  19. I've been looking over at Amp Garage and you...

    I've been looking over at Amp Garage and you can't search for "PCB". There are a couple of hits for "Printed Circuit" and a couple of pics came up for "layout". The ones I saw weren't very good. One...
  20. It's been a while, but there were some pics of...

    It's been a while, but there were some pics of layouts like this on Amp Garage. IIRC it was a Trainwreck clone.
  21. Replies
    30
    Views
    1,131

    If the RCA tube manual RC-28 is to be believed,...

    If the RCA tube manual RC-28 is to be believed, the maximum grid #1 circuit resistance for fixed bias operation is (not a typo) 0.05 MegOhm per tube. This is especially important at high plate...
  22. Sticky: An output transformer can have significant...

    An output transformer can have significant capacitance between one end of the primary and the secondary. If you were to play a loud cord, hold the cord touching the strings on the guitar, and touch...
  23. Replies
    5
    Views
    335

    Too much stuff running from the "D" node. You...

    Too much stuff running from the "D" node. You need another filter cap and resistor to make an "E" node for the first stage.
  24. 3K is a standard value for 5% parts as is 750....

    3K is a standard value for 5% parts as is 750. Fender used 10% parts for the most part.
  25. Replies
    36
    Views
    3,599

    A lot of people in Italy take the month of August...

    A lot of people in Italy take the month of August off. You might not get a reply from them for a couple of weeks.
  26. Replies
    15
    Views
    429

    You want a real professional level scope, not a...

    You want a real professional level scope, not a toy or hobby scope. A real scope will have:

    BNC connector for the input.
    Input will be marked 1 Megohm and an input capacitance usually between...
  27. Replies
    6
    Views
    568

    OK, it plays tomorrow around 1:00PM NYC time. I...

    OK, it plays tomorrow around 1:00PM NYC time. I can't find any replays in the next week.

    Link to TBD's schedule: http://tbd.com/schedule
  28. Replies
    6
    Views
    568

    I've been watching the website, http://tbd.com/...

    I've been watching the website, http://tbd.com/ and it says Sound City is scheduled to play on Friday Aug 16 at 1:00PM Eastern time (New York City) which is 12:00PM (noon) Dallas time. If you are...
Results 1 to 28 of 500
Page 1 of 18 1 2 3 4