Skip to main content
Blues Harmonica logo

User Account

Username:*
Password:*
Forgot Your Password?

Visitor Menu

  • Sign Up
  • Sample Lesson #1
  • Sample Lesson #2
  • Student Recordings
  • Forums
Forums :: Ask Amp Tech Expert Skip Simmons

dano amp 8 ohm tap

4 replies [Last post]
Sat, 10/26/2013 - 11:25
Bluevan
Bluevan's picture
Offline
Joined: 04/26/2012

Hi Skip, i got a mid 50s danelectro 272 centurion amp and the original speaker just craped out, i think its original.  I noticed that the OT has 3 wires going to a terminal strip with 3 posts, what  is the extra ohm tap?  Is there a way to test it with a multimeter ?

Top
Mon, 10/28/2013 - 07:11
#1
Expert Skip Simmons
Expert Skip Simmons's picture
Offline
Joined: 01/18/2010
Danelectro speaker

Hello Bluevan-    That amp has both 4 and 8 ohm taps.  A good digital meter will show a slightly higher resistance on the higher-impedance tap, but in general a meter won't tell you much about an output transformer other than an open winding.  Use the same wires as the original.  One will be connected to the chassis; that is always "ground".

  You might consider reconing that speaker if you really liked it.   I dig Neal's Speaker Service in Sacramento.

 

Top
Mon, 10/28/2013 - 22:27
#2
Bluevan
Bluevan's picture
Offline
Joined: 04/26/2012
Thanks Skip, the speaker was

Thanks Skip, the speaker was a 8 ohm smooth cone utah 328839 (V12L7) I plan to get it reconed at some point. i put a 1961 cleveland speaker i got for cheap  in for now ,its supposed to be there version of a p12n. one thing i noticed was before the utah speaker went bad the the pots were kind of scratchy and the amp would feed back sooner than i would expect alittle past 9 oclock.  after i put the cleveland speaker in the pots were all quiet no scratchy sounds and i can crank the amp past 12 oclock and get no feedback, and the amp is super quiet, no white noise or anything.  Does that sound like normal failing speaker symtoms, or is the cleveland just more efficent?

Top
Thu, 11/07/2013 - 07:21
#3
Expert Skip Simmons
Expert Skip Simmons's picture
Offline
Joined: 01/18/2010
Dano speaker

Hello Bluevan-    I can't imagine how the speaker would affect the scratchy pots, but speaker efficiency would certainly affect tone and feeedback.    Maybe just turning the pots cleaned them up enough to quiet them down.

Top
Tue, 11/12/2013 - 21:50
#4
Bluevan
Bluevan's picture
Offline
Joined: 04/26/2012
  So I thought the 1958 Utah

  So I thought the 1958 Utah speaker was done cause the surround  had a few cracks and was sounding super nasty So naturally changed it out. Tried 3 different speakers, they sounded ok but not as good as the Utah. So I did alittle research and read use rtv to patch the cracks let cure over night then dope the surround with contact cement.  I tested it today with the bogen head first , holy smokes ,it sounds killer. Threw it back in the Dano and wala, brought the tone back to the amp!  you would never know it had all that stuff on it by the way it sounds.  way cheaper than a recone too! Oh and you were right about the pots smoothing out from turning them, cause there quiet even with the Utah speaker. 

Top

Sign me up!

The low monthly subscription of $16.95 gives you full access! We accept major credit cards and PayPal.

Subscribe

Free Sample Lessons

After watching the BluesHarmonica.com overview video, try one of the lessons below to experience a lesson at BluesHarmonica.com.

  • Tongue Blocking Study 2 – This study is for the newer player or the player new to tongue blocking
  • Bending Study 5 – This is for the advanced player looking to improve their bending skills

Contributors

  • Aki Kumar
  • Joe Tartaglia
  • Gary Smith
  • Mark Hummel
  • Joe Filisko

Site Links

  • About David Barrett
  • Accredited Instructors
  • Links
  • Terms and Conditions
  • Contact Us
Hohner
© 2009 - 2022 David Barrett and the Harmonica Masterclass Co. for Bluesharmonica.com