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Messages - zgrav

Pages: [1] 2 3 ... 13
1
Tech Help - Projects Page / Re: Uber Tuber question
« on: February 19, 2021, 06:17:57 PM »
thanks again, and for the quick replies today.

2
Tech Help - Projects Page / Re: Uber Tuber question
« on: February 19, 2021, 05:03:02 PM »
I cut out the 100K resistors and replaced each one with a 1M trimpot.  By maxing out the resistance I could get the voltage down to between 13 and 14 volts for each test point.   I was surprised it would not drop the voltage more than that, but that still made a big difference in the sound.  With those lower voltages the distortion in the tone and adjustment with the drive pot is great.  Before it was a pretty clean signal that could be overdriven with a boosted input, and now there is some nice dial-in distortion without upping the level of the input. 

3
Tech Help - Projects Page / Re: Uber Tuber question
« on: February 19, 2021, 02:12:17 PM »
thanks.

4
Tech Help - Projects Page / Uber Tuber question
« on: February 19, 2021, 01:25:35 PM »
I built a working Uber Tuber from the original version when it was released.  It has a warm clean sound with very little distortion unless the incoming signal is high.    I noticed today there had been a 1.1 revision to the build doc not long after it was released, and saw that two trimmers were put in to replace the 100K resistors for the plate voltage.  The build doc suggests setting the trimmers to bias at about 12 volts, but there are comments that most of the tubes work OK over a bit wider range.

I checked the plate voltage on my board and they are both running over 17 volts using the 18 volt Dunlop power supply.   Would changing the resistors to drop the voltage to 12 change the sound from the tube to possibly add more use to the drive/cut/sat controls?  If not, is there a reason not to leave the board as-is with the higher plate voltage?


5
Open Discussion / Re: Old through-hole PCB repairs. AAAAAAAAAAAUUUGHHH.
« on: January 25, 2021, 03:52:37 PM »
one quick tip to share I learned recently -- best way to open a through hole on a board is heating the solder and then putting a toothpick into the hole and let it cool.

6
Global Annoucements / Re: Oct. Release Update
« on: October 15, 2020, 11:11:30 AM »
I was wondering if it was going to be a fuzz face variant.  thnaks!

7
Global Annoucements / Re: Oct. Release Update
« on: October 15, 2020, 09:52:22 AM »
Looking forward to the HT2.  Is the Vionenzz Fuzz a take on a classic pedal?

8
Open Discussion / Re: The Wavelord!
« on: August 31, 2020, 10:50:13 AM »
I built the Glasshole first because I was waiting for the taptempo chip to arrive.  Got the chip and built the Wavelord.  Both pedals are very nice on their own, and really interesting to link together.  A great combination.

9
Global Annoucements / Re: Summer Sabbatical
« on: June 25, 2020, 02:54:20 PM »
Hope you can rewind and unlax, or something like that! 

10
Tech Help - Projects Page / Re: fat pants question
« on: March 05, 2020, 09:44:00 AM »
checking your zener sounds like a good idea.  something is dropping your voltage in that part of the circuit.   what voltage reading are you getting at d5 & c11?

11
Global Annoucements / Re: Upcoming January releases and sale
« on: February 27, 2020, 10:25:44 PM »
Glad to see the new stuff go live.  Nice demo on FB as well.  Order placed.
Thanks again for all the effort you put into the designs and build documents!  And I hope this means that you are feeling a lot better.

12
Global Annoucements / Re: Upcoming January releases and sale
« on: February 22, 2020, 10:38:43 AM »
Looks promising for some new demos to be posted soon.... ;D

13
Global Annoucements / Re: He's not quite dead yet...
« on: February 15, 2020, 05:08:53 PM »
glad you are on the mend.  sounds like quite an ordeal.

14
Global Annoucements / Re: Upcoming January releases and sale
« on: February 12, 2020, 10:47:41 AM »
sometimes the problem with taking care of a sick child is that the parent ends up getting sick too...

15
Global Annoucements / Re: Upcoming January releases and sale
« on: January 31, 2020, 04:10:45 PM »
The breadboarded demo of the Glitchee on the Demo page is pretty cool.  The filter adds a lot to the expression of the bit commander.

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