Page 4 of 5 FirstFirst 12345 LastLast
Results 106 to 140 of 164

Thread: Deluxe Reverb problem

  1. #106
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by g1 View Post
    It would help if you could post some clear pictures of the board, pots, etc. so we can check the layout & wiring.
    Ok I'll do that asap.

    0 Not allowed! Not allowed!

  2. #107
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by g1 View Post
    It would help if you could post some clear pictures of the board, pots, etc. so we can check the layout & wiring.
    Ok I have 11 pics and a recording of the motorboating but I don't know how to post them on here. Any tips?

    0 Not allowed! Not allowed!

  3. #108
    don't forget the joker g1's Avatar
    Join Date
    Feb 2010
    Location
    Canada, somewhere north of Fargo
    Posts
    9,848
    Thumbs Up/Down
    Received: 70/0
    Given: 123/0
    When you have the reply box open, click on 'go advanced' (below the box). Then scroll down to 'manage attachments' and click on it. From there you should be able to add what you want.

    0 Not allowed! Not allowed!
    Certified Dotard

  4. #109
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by g1 View Post
    When you have the reply box open, click on 'go advanced' (below the box). Then scroll down to 'manage attachments' and click on it. From there you should be able to add what you want.
    Thanks I'll see if it works.

    0 Not allowed! Not allowed!

  5. #110
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Going to have to make my files smaller.

    0 Not allowed! Not allowed!

  6. #111
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Click image for larger version. 

Name:	20180609_002327.jpg 
Views:	23 
Size:	2.88 MB 
ID:	49202Click image for larger version. 

Name:	20180608_202237.jpg 
Views:	17 
Size:	2.72 MB 
ID:	49201Click image for larger version. 

Name:	20180609_002118.jpg 
Views:	10 
Size:	2.88 MB 
ID:	49200Click image for larger version. 

Name:	20180609_001924.jpg 
Views:	11 
Size:	2.76 MB 
ID:	49199Click image for larger version. 

Name:	20180608_201633.jpg 
Views:	9 
Size:	2.96 MB 
ID:	49198Click image for larger version. 

Name:	20180609_001531.jpg 
Views:	13 
Size:	2.87 MB 
ID:	49197Click image for larger version. 

Name:	20180608_201101.jpg 
Views:	9 
Size:	2.86 MB 
ID:	49196Click image for larger version. 

Name:	20180609_001114.jpg 
Views:	18 
Size:	2.65 MB 
ID:	49195Click image for larger version. 

Name:	20180608_202351.jpg 
Views:	12 
Size:	2.21 MB 
ID:	49194Click image for larger version. 

Name:	20180609_002327.jpg 
Views:	23 
Size:	2.88 MB 
ID:	49202Click image for larger version. 

Name:	20180608_202237.jpg 
Views:	17 
Size:	2.72 MB 
ID:	49201Click image for larger version. 

Name:	20180609_002118.jpg 
Views:	10 
Size:	2.88 MB 
ID:	49200Click image for larger version. 

Name:	20180609_001924.jpg 
Views:	11 
Size:	2.76 MB 
ID:	49199Click image for larger version. 

Name:	20180608_201633.jpg 
Views:	9 
Size:	2.96 MB 
ID:	49198Click image for larger version. 

Name:	20180609_001531.jpg 
Views:	13 
Size:	2.87 MB 
ID:	49197Click image for larger version. 

Name:	20180608_201101.jpg 
Views:	9 
Size:	2.86 MB 
ID:	49196Click image for larger version. 

Name:	20180609_001114.jpg 
Views:	18 
Size:	2.65 MB 
ID:	49195Click image for larger version. 

Name:	20180608_202351.jpg 
Views:	12 
Size:	2.21 MB 
ID:	49194

    0 Not allowed! Not allowed!

  7. #112
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Click image for larger version. 

Name:	20180608_173758.jpg 
Views:	13 
Size:	2.97 MB 
ID:	49203

    0 Not allowed! Not allowed!

  8. #113
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    I have one more pic of the inside, showing the output components, tube sockets and PT- facing the back of the chassis. Wouldn't let me post for some reason. It's under 3mb. I'll keep trying.

    0 Not allowed! Not allowed!

  9. #114
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Click image for larger version. 

Name:	20180609_084039.jpg 
Views:	10 
Size:	2.72 MB 
ID:	49207

    0 Not allowed! Not allowed!

  10. #115
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    That's all I took. Not the neatest work, obviously and I can't believe I forgot to put the twisted pair from the vib channel input grid through the proper hole. But I can always fix it later.

    0 Not allowed! Not allowed!

  11. #116
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0

    V4 Motorboating clip


    0 Not allowed! Not allowed!

  12. #117
    don't forget the joker g1's Avatar
    Join Date
    Feb 2010
    Location
    Canada, somewhere north of Fargo
    Posts
    9,848
    Thumbs Up/Down
    Received: 70/0
    Given: 123/0
    That big orange drop cap connected to the tremolo bug, what value is it? (and why?).
    Does it make any difference it it is removed or disconnected at one end?

    0 Not allowed! Not allowed!
    Certified Dotard

  13. #118
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by g1 View Post
    That big orange drop cap connected to the tremolo bug, what value is it? (and why?).
    Does it make any difference it it is removed or disconnected at one end?
    That's a .022 to ground. Supposed to prevent ticking. Makes no difference at all otherwise.

    0 Not allowed! Not allowed!

  14. #119
    don't forget the joker g1's Avatar
    Join Date
    Feb 2010
    Location
    Canada, somewhere north of Fargo
    Posts
    9,848
    Thumbs Up/Down
    Received: 70/0
    Given: 123/0
    Ok. It looked bigger to me. I thought maybe it was a .1uF. So you tried with it lifted and no difference?
    And you did say that you could see the bulb flashing?

    0 Not allowed! Not allowed!
    Certified Dotard

  15. #120
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by g1 View Post
    Ok. It looked bigger to me. I thought maybe it was a .1uF. So you tried with it lifted and no difference?
    And you did say that you could see the bulb flashing?
    Didn't try it lifted yet but I will now. I just put it in after reading about it as a tip.

    0 Not allowed! Not allowed!

  16. #121
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by tyler8611 View Post
    Didn't try it lifted yet but I will now. I just put it in after reading about it as a tip.
    Yes can see the bulb flashing.

    0 Not allowed! Not allowed!

  17. #122
    Old Timer Tom Phillips's Avatar
    Join Date
    Jun 2006
    Location
    California, USA
    Posts
    3,468
    Thumbs Up/Down
    Received: 14/0
    Given: 14/0
    tyler8611,
    You posted really nice high resolution photos. Would you please include at lease one photo that shows the whole gut shot as a single view?
    Cheers,
    Tom

    0 Not allowed! Not allowed!

  18. #123
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by Tom Phillips View Post
    tyler8611,
    You posted really nice high resolution photos. Would you please include at lease one photo that shows the whole gut shot as a single view?
    Cheers,
    Tom
    Sure, no problem.

    0 Not allowed! Not allowed!

  19. #124
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by tyler8611 View Post
    Sure, no problem.
    Click image for larger version. 

Name:	20180609_153959.jpg 
Views:	24 
Size:	2.66 MB 
ID:	49210


    Had to crop it to get it under 3mb.

    0 Not allowed! Not allowed!

  20. #125
    Member
    Join Date
    Aug 2015
    Location
    Edmonton, AB
    Posts
    44
    Thumbs Up/Down
    Received: 3/0
    Given: 4/0
    Quote Originally Posted by tyler8611 View Post
    Click image for larger version. 

Name:	20180609_153959.jpg 
Views:	24 
Size:	2.66 MB 
ID:	49210


    Had to crop it to get it under 3mb.
    Just a FYI....

    I use BUZZ 3D Media converter to convert images and reduce file size.
    It works great but you are limited to 1280X1024 PNG or JPEG output.
    Not really a problem as far as size goes, still decent.
    It's an older program... there may be better/newer ones out there.
    Oh ya, it freeware.

    http://www.tucows.com/preview/510875

    0 Not allowed! Not allowed!

  21. #126
    Supporting Member
    Join Date
    Jan 2018
    Location
    Michigan
    Posts
    110
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Here's a stacked image of a working 65 deluxe reverb (bottom photo) , compared to your build , hope it helps , g1 in#117 asked my first question, orange drop (is that the new LIKE)Click image for larger version. 

Name:	f2.JPG 
Views:	3 
Size:	536.6 KB 
ID:	49222Click image for larger version. 

Name:	deluxe_reverb_aa763_layout 2.jpg 
Views:	7 
Size:	538.6 KB 
ID:	49223
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	f1.JPG 
Views:	17 
Size:	732.3 KB 
ID:	49213  

    0 Not allowed! Not allowed!
    Last edited by shortcircuit; 06-10-2018 at 04:26 PM.

  22. #127
    Senior Member
    Join Date
    Sep 2014
    Location
    se texas
    Posts
    154
    Thumbs Up/Down
    Received: 3/0
    Given: 0/0
    disregard

    0 Not allowed! Not allowed!

  23. #128
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by shortcircuit View Post
    Here's a stacked image of a working 65 deluxe reverb (bottom photo) , compared to your build , hope it helps , g1 in#117 asked my first question, orange drop (is that the new LIKE)Click image for larger version. 

Name:	f1.JPG 
Views:	17 
Size:	732.3 KB 
ID:	49213
    Thanks for that comparison. The orange drops are mostly PS series in there right now. Just one or two 715p.

    0 Not allowed! Not allowed!

  24. #129
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Touched up the pots and grounds and eliminated the cap on the roach. Going to see if it makes ant difference.

    0 Not allowed! Not allowed!

  25. #130
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Well guys, it's fixed! The last few things I did were touch up the pots and grounds, and I removed the .022 cap from the trem roach, which may well could have been the cause. I appreciate you all giving advice along the way!

    Got it biased at 20mV with 444 plate voltage. Sounds excellent.

    0 Not allowed! Not allowed!

  26. #131
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Now I need to find the cause of this ratty distortion that's like a tearing sound that I get when vibrato channel is on 10. It's not the speaker and not V1 or V2. Maybe one of the other preamp tubes. I already swapped JJ 6v6s and it made no difference. Aside from that, the amp is running just fine and sounds really good!

    0 Not allowed! Not allowed!

  27. #132
    Senior Member SoulFetish's Avatar
    Join Date
    Jan 2016
    Location
    Massachusetts
    Posts
    649
    Thumbs Up/Down
    Received: 9/0
    Given: 8/0
    Quote Originally Posted by tyler8611 View Post
    Didn't try it lifted yet but I will now. I just put it in after reading about it as a tip.
    Yes, this is a common technique for reliably removing any audible tick. Although, I always implement it in a slightly different way than you did. I bypass the 10M resistor with a .047F cap. The reason I do it this way is that I have an large surplus of little white with box caps with leads just long enough to bypass the resistor. Since the power supply and ground are at the same potential for AC, it's six in one – half dozen in the other.
    The important thing to remember when making this alteration is this: In order to maximize the mojo, use an inexpensive and reliable economy cap for this.
    Click image for larger version. 

Name:	Tickless.jpg 
Views:	14 
Size:	251.5 KB 
ID:	49253

    1 Not allowed! Not allowed!
    If I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.

  28. #133
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by SoulFetish View Post
    Yes, this is a common technique for reliably removing any audible tick. Although, I always implement it in a slightly different way than you did. I bypass the 10M resistor with a .047F cap. The reason I do it this way is that I have an large surplus of little white with box caps with leads just long enough to bypass the resistor. Since the power supply and ground are at the same potential for AC, it's six in one – half dozen in the other.
    The important thing to remember when making this alteration is this: In order to maximize the mojo, use an inexpensive and reliable economy cap for this.
    Click image for larger version. 

Name:	Tickless.jpg 
Views:	14 
Size:	251.5 KB 
ID:	49253
    Wow cool mod. Makes sense. I'll definitely give it a try.

    0 Not allowed! Not allowed!

  29. #134
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Quote Originally Posted by g1 View Post
    You have to disconnect the cathode resistor if you want to measure mA current directly. Current measurement must be done with the meter in series. The point of having the 1 ohm cathode resistors is so you don't have to 'break in' to the circuit and can just measure voltage in mV across the resistor.
    So your mA numbers are not valid. Your measurement of 65mV across the resistor is what you should go by. 65mV divided by 1 ohm equals 65mA idle current. At 400V plate, you are idling those tubes around 26watts. If you are lucky they may still be ok.
    Somewhere around 20mA is probably more appropriate, which will measure as 20mV across the 1 ohm resistor.
    Is 20 mA (mV) good with 451 on the plates?

    0 Not allowed! Not allowed!

  30. #135
    don't forget the joker g1's Avatar
    Join Date
    Feb 2010
    Location
    Canada, somewhere north of Fargo
    Posts
    9,848
    Thumbs Up/Down
    Received: 70/0
    Given: 123/0
    Yes, that should be fine.
    (edit) That's about 9W idle which is about 70% of the 12W that 6V6 are rated at.
    (65% of the 14W a JJ 6V6 is rated at)

    0 Not allowed! Not allowed!
    Last edited by g1; 06-13-2018 at 01:54 AM.
    Certified Dotard

  31. #136
    Senior Member SoulFetish's Avatar
    Join Date
    Jan 2016
    Location
    Massachusetts
    Posts
    649
    Thumbs Up/Down
    Received: 9/0
    Given: 8/0
    Quote Originally Posted by tyler8611 View Post
    Is 20 mA (mV) good with 451 on the plates?
    If you have 20mA of cathode current, figure about 2mA of quiescent screen current and 18mA for your plate, you at 70% dissapation. Without drawing up a load line, i’d say your probably fine.

    0 Not allowed! Not allowed!
    If I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.

  32. #137
    Senior Member SoulFetish's Avatar
    Join Date
    Jan 2016
    Location
    Massachusetts
    Posts
    649
    Thumbs Up/Down
    Received: 9/0
    Given: 8/0
    I’ve seen 6V6s rated for both 12W and 14W. The 70% figure I quoted was at 12W.

    1 Not allowed! Not allowed!
    If I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.

  33. #138
    don't forget the joker g1's Avatar
    Join Date
    Feb 2010
    Location
    Canada, somewhere north of Fargo
    Posts
    9,848
    Thumbs Up/Down
    Received: 70/0
    Given: 123/0
    Quote Originally Posted by SoulFetish View Post
    I’ve seen 6V6s rated for both 12W and 14W. The 70% figure I quoted was at 12W.
    I think your 12W figure is correct. The 14W is for the newer JJ type which seems more of a 6V6/6L6 hybrid.
    I've edited my previous post for the 12W version. If he's using JJ's, he can use the 9 over 14 = 65% figure.

    2 Not allowed! Not allowed!
    Certified Dotard

  34. #139
    Member
    Join Date
    May 2018
    Posts
    103
    Thumbs Up/Down
    Received: 5/0
    Given: 0/0
    Thanks for the help guys. The only issue I have now is this sound like speaker cone tearing (though it isn't) when I dime the vibrato channel. It is a ripping sound that spurts around after sustaining a chord. Happens with or without the effects. I've changed V2 and it's still there. Again, only happens on 10.

    The 6v6s are almost new JJs. The one nearest the rectifier has a slight blue glow around one of the spacers and the blue actually intensifies when I play a note or chord on 10.

    Guess it's either that power tube or something internal. I swapped preamp tubes and also hooked up to a different speaker with the same result.

    0 Not allowed! Not allowed!

  35. #140
    Supporting Member
    Join Date
    May 2006
    Location
    Staffordshire UK
    Posts
    3,362
    Thumbs Up/Down
    Received: 9/0
    Given: 13/0
    Quote Originally Posted by tyler8611 View Post
    Thanks for the help guys. The only issue I have now is this sound like speaker cone tearing (though it isn't) when I dime the vibrato channel. It is a ripping sound that spurts around after sustaining a chord...
    Issues that occur when gain is increased may be due to oscillation; closely examine the precise placement of wires in a real BF and review your lead dress against that.

    1 Not allowed! Not allowed!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Fender Deluxe Reverb Reissue - Reverb Problem
    By bw1985 in forum Maintenance, Troubleshooting & Repair
    Replies: 3
    Last Post: 02-10-2018, 05:07 AM
  2. Deluxe Reverb Oscillation Problem - Reverb Driver stage?
    By waspclothes in forum Maintenance, Troubleshooting & Repair
    Replies: 9
    Last Post: 06-13-2017, 12:45 AM
  3. deluxe reverb noise problem?
    By chuckb in forum Maintenance, Troubleshooting & Repair
    Replies: 7
    Last Post: 08-25-2014, 09:39 PM
  4. Deluxe Reverb 5U4 problem
    By legaskins in forum Maintenance, Troubleshooting & Repair
    Replies: 1
    Last Post: 10-08-2007, 01:45 AM
  5. Deluxe Reverb tube problem
    By Alexandre IV in forum Maintenance, Troubleshooting & Repair
    Replies: 6
    Last Post: 05-18-2007, 07:10 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •