Bk butler real tube mod#
Bk butler real tube update#
Bk butler real tube driver#
Bk butler real tube upgrade#

Bk butler real tube driver#

The Real/Blue types have what is a pretty high loading on the op amp of 100K, while the Tube Driver only had 10K. To try and keep the tech-speak to a minimum, one difference that I quickly see is both the loading and high pass filter from the actual gain stage in the two (which is a TL072 op amp stage) is different. There are some differences, but AFA being superior to another is probably going to be a subjective call. My Overlord awaits surgery and seek its rightful position on my pedal board.I just re-reviewed the schems of the Tube Driver vs. I also needed to cobble in a repalcement footswitch.would be nice to replace with a REAL switch.Ĭan hardly wait. Would love to see its potential.and an added bias control.WOW I currently have a 12au7 in it right now.its ok but needs something.

Bk butler real tube update#

I too am eagerly waiting for an update so I can modify my 5 knob.

Bk butler real tube mod#

Reply Delete Replies Reply Anonymous, 00:12:00 Hi, any update on this mod Just picked up a Dean Markley Overlord and Im very interested to know if your mod was a success Reply Delete Replies Reply Anonymous, 16:36:00 Great website.

Bk butler real tube upgrade#

Upgrade poor quality components to higher quality equivalents and use shielded wire for all signal carrying off-board connections to ensure this thing sounds as good as it can So after all that what am I going to end up with Well, hopefully a super clean and cool version of the well known (and widely used) Tube Driver circuit. The Mids control will be sacrificed and replaced by the Bias control. Most players find a sweet spot about 2:30 - 3 oclock on the control.Īll in all, it is a pro tool type of control that each player can set to their own subjective taste.

It does not change the EQ directly but because the way the tube responds can be varied you will hear EQ differences at various settings. Technically it varies the electrical strength of the tube and that affects gain, texture and dynamics. The Bias control also adds dynamics and allows you to custom match your Tube Driver for any particular pickupamp combination. Incorporate the Bias mod, heres a description of what the bias mod actually does from the B K Butler website: The Bias control is very helpful as it adjusts the amount of current applied to the cathode of the tube.Įric Johnson used to spend a lot of time looking for perfect tubes to use in his standard Tube Drivers, but now he can just set the bias easily with the stock tube. So, what am I planning to do: 1 - Make this thing True Bypass the bypass switching currently employed by Overlord is terrible, a switch to true bypass will greatly improve the bypassed tone. Now what I want to do is combine the best parts of each of these variations into one and modify my Overlord into the ultimate tube overdrive pedal. I took a look at various schematics with a view to modifying the Overlord to full-fill its true potential.Īnd the newly updated Tube Driver itself (with the Bias mod).Īnd another version by Bajaman - The Real Tube Overdrive with a regulated power supply and simplified tone control. Using a REAL 12AX7 vacuum tube it creates realistic tube overdrive and distortion tones It has some close relatives. Have fun, enjoy the blog - Fred Briggs:-) CONTACT ME Feel free to get in contact with me about anything you see on this blog or with any general questions about guitars, amplifiers and effects, Ill be happy to answer Just click the button above to email me directly or alternately my email address is fredbriggs2007 at googlemail dot com.