News: Trouble logging in? Log in from the login page.
October 28, 2020, 01:05:37 AM

Author Topic: New Tode in the House  (Read 1610 times)

0 Members and 1 Guest are viewing this topic.

Offline Alonzo

  • Sr. Member
  • ****
  • Posts: 433
  • Not all those who wander are lost
New Tode in the House
« on: February 08, 2015, 09:07:22 PM »
Latest addition from the BHead product line.  Just finished the Tode, resistance were spot on and voltages are around spec.  Tried my Gretsch but got no sound.  Just hum/noise when I touched the pots or balance knobs.  Think I have a bad guitar cord, will pick one up tomorrow and give this amp a workout.
Build was pretty easy, the instructions take you by the hand and make sure you don't f'up.  I didn't care for the coax cable though.  I really didn't realize how small this amp is, it's tiny!
Alonzo
Dell to Gungnir>
BeePre>845 amp>Altec 414z, Kaiju>GPA 802-8G on Jabo horns, 45 Stereomour I> APT super tweeters
Saga>Vidar>PE subwoofers
to SR-45 amp>HD800
to Stat amp>Koss ESP/95
Garage: RPi4 to BiFrost>Stereomour I>Altec 299-8A w/MRII horns and Stereomour II>Mk3 Frugal horn

Offline Doc B.

  • Administrator
  • Hero Member
  • *****
  • Posts: 8274
    • Bottlehead
Re: New Tode in the House
« Reply #1 on: February 09, 2015, 05:30:10 AM »
As with all of our parts the coax was chosen for a reason. In this case the input impedance is so high (10MEG) that noise rejection is a primary consideration with respect to the input wiring. And so we used a coaxial cable with very high rejection.

Are you saying that you are getting hum when you touch the pots on the guitar, or the pots on the amp? There shouldn't be any noise when touching the knobs on the amp except that the brake knob will sometimes make a faint crunchy sound if you turn it fast. If you are getting hum from the knobs on the guitar but no sound it might be a bad pickup switch.
Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.

Offline Alonzo

  • Sr. Member
  • ****
  • Posts: 433
  • Not all those who wander are lost
Re: New Tode in the House
« Reply #2 on: February 09, 2015, 06:36:34 AM »
Thanks for the explanation,  I know it's there for a real reason, I've just never liked working with that fine mesh braid, those fine wires can get everywhere. 
The hum I get is from touching the pots on the guitar.  I'll have to get it checked/cleaned this week.   
Alonzo
Dell to Gungnir>
BeePre>845 amp>Altec 414z, Kaiju>GPA 802-8G on Jabo horns, 45 Stereomour I> APT super tweeters
Saga>Vidar>PE subwoofers
to SR-45 amp>HD800
to Stat amp>Koss ESP/95
Garage: RPi4 to BiFrost>Stereomour I>Altec 299-8A w/MRII horns and Stereomour II>Mk3 Frugal horn

Offline aragorn723

  • Sr. Member
  • ****
  • Posts: 887
Re: New Tode in the House
« Reply #3 on: February 14, 2015, 02:55:27 AM »
Wow that really does look small!  I'd be curious how loud it can get and if it can rock  8)

Offline Doc B.

  • Administrator
  • Hero Member
  • *****
  • Posts: 8274
    • Bottlehead
Re: New Tode in the House
« Reply #4 on: February 14, 2015, 05:32:32 AM »
It gets loud enough for performance in a small venue, and it can also be used as a head for a larger speaker. We have measured a 4X12 cab of Celestions G12T-75s  driven by a Tode at 113dB @ 1M.
Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.