- Bk butler tube driver amp mod#
- Bk butler tube driver amp drivers#
- Bk butler tube driver amp full#
- Bk butler tube driver amp mods#
Thank you all for your help and advice in advance. Though I would still like to use the *V.T.O. even the Overdrive and Distortion effects on the amp sound better then the Behringer one. set it to the clean level and then I've hooked up the Behringer *V.T.O. And I would definitely love to see it as a stomp model in the KPA.
To me, the BK Butler Tube Driver is one of the best around both for leads, taming a muff and for a clean volume boost that adds some bite.
Bk butler tube driver amp full#
I'm using a Fender Superchamp XD Full Tube Amp. The stomp box world has much more variety than what the KPA has in store when it comes to distortions and overdrives. I hope someone can help my, cause my *V.T.O. I've already seen the two schematics of Bajaman, but I'm having allot of difficulty trying to find out on the schematic which resistor is which on the print. but does anyone of you might have a short list of which part (resistor - capacitor) needs to be replaced with what? I've been reading this topic several times now and I'm greatfull for all the information and images.
Bk butler tube driver amp mod#
That being the short introduction, I've got a question regarding this MOD to the Vintage Tube Overdrive*. My name is Niels, I'm 34 years and I'm from the Netherlands.įirst of all I would like to wish everyone a Happy New Year and all the best.
Bk butler tube driver amp mods#
My local Behringer tech friend does not have it - I am contemplating doing some mods to make it a useable unit - then again, maybe I will just put it on the local Trade Me site (NZ Ebay) and see if I can get some money backĪnyone with a schematic - factory or otherwise email me - I will not say where I got it okayĭo yourselves a favour DO NOT BUY one of these - build the B K Butler Tube Driver in the DIY Projects section instead No wonder Behringer discontinued it - does any one have a schematic for it? it sounds like a badly biased germanium Rangemaster - you know, that shitty gated distortion effect in comparison to the smoooooth sounding B K Butler Tube Driver. It has a Coolaudio brand chip - unsure what it is - looks like a quad opamp SMD device in place of the B K Butler TL072 or 4558 dual opamp.ĪND. It has a crappy single knob tone control in place of B K Butlers HI and LO controls. I have to tell all here that this is not even remotely similar to the B K Butler Tube Driver.įirst it runs off 9v dc, NOT 12vAC (which is converted to +12vDC and-12vDC in the B K Butler) I purchased a Behringer VT911 and took it apart AND. With the files that i attach here is very easy to find the components on the PCB.
I want to check the values of R7, R8, R12, R14, C3 on other units. Everything works as it should on this amp and it sounds beautiful. Butler Tube Driver, Desert Island Overdrive, With Genius Bias/Sag Knob, Super Tube Circuitry. Solid state, 100 watt' 2 channel amp with the Tube driver preamp and reverb tank. Butler model name / number: Tube Driver amplifier more ads by this user80's BK Butler tube driver amp.
Bk butler tube driver amp drivers#
If anyone there has one of this early tube drivers please post the guts. condition: excellent make / manufacturer: B.K.
But i would maybe change R14 and R12 to the old values and listen what happens. The new RI version is better than the old one regarding PWR Supply, noise etc. > C3: Was not identified on the guts pictures. > R12: increased from 10k to 22k in the new RI Edition. Was this unit moded for lower gain tubes? "Tube Driver" can you please measure the bias voltage in both R7 and R8? > R7,R8: From the pictures the plate resistors look like 6,8k. Maybe 2,2k works better when one rolls off both the Bass and High a la Eric Johnson? Several people reported that the tone stack reacted different on the new version vs. > R14: On the new RI version it increased from 2,2k to 22k. The most significant differences compared to the new RI edition are: As promised here is the schematic of the early tube driver traced from the guts posted on this thread.
0 kommentar(er)
