Reduction Hum and No Playback [resolved]

OverAnalyst · 3250

0 Members and 1 Guest are viewing this topic.

Offline OverAnalyst

  • Jr. Member
  • **
    • Posts: 48
  • experimental indie/punk/jazz
Reply #30 on: August 12, 2020, 03:14:31 PM
On a side note, I take a resistance reading from the ground tab on the RCA to the nut. They should essentially have zero resistance, correct? I get about 23kOhms for both A and B side.



Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19409
Reply #31 on: August 12, 2020, 03:28:56 PM
I would double check that the ground tab is installed just under the nut, not under the plastic washer.  In your photos it was hard to see the buss wire going to the ground lugs on the ground post, but I saw two wires folded over each, so it looks as though they are there.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline OverAnalyst

  • Jr. Member
  • **
    • Posts: 48
  • experimental indie/punk/jazz
Reply #32 on: August 12, 2020, 03:33:15 PM
Yeah, that's what I was trying to explain back on reply #19, but poorly. I have the plastic washer between the ground tab and the nut. ARRGGGG. I'll spend this evening fixing.



Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19409
Reply #33 on: August 12, 2020, 03:35:20 PM
You aren't the first person to do that, don't worry! 

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline OverAnalyst

  • Jr. Member
  • **
    • Posts: 48
  • experimental indie/punk/jazz
Reply #34 on: August 12, 2020, 07:29:26 PM
So that RCA ground tab/washer was the issue. It amazes me how one "little" thing can cause quite a showstopper. Just spent the last few hours listening to some records. I'm definitely pleased. I purchased the upgrade kit as well, but will wait till I'm ready.

Gotta say, it was pretty cool learning about that trace signaling. I've heard it before, but never knew what it was.
Thanks for your help and patience PB. Much appreciated.



Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19409
Reply #35 on: August 13, 2020, 06:43:05 AM
I'm glad you got it all sorted!

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man