Tone Bender Mark II [BreadBoard]

[fig]

You may remember my janky rig from another thread, here it is with candy.
I still have a pre-flight to do so I haven't put the current to it yet. If it survives, I'll put it in a box.

if you spot a fault, please let me know.

 

[fig]

Yeah, well...starting with R1 , and my BO wire.
I need those tape tags that are all the rave.

 

[fig]

Nailed it! A few other changes were needed, but it will go on a 7x13 board.

 

[peccary]

I just wanna know how many Dead concerts that scrunchie attended with you

 

[fig]

Ahh yes, Sugar Magnolia.
Waits backstage while I sing to you

 

[fig]

Those transistors remind me of 3 Lincoln impersonators in a huddle.

rabble, rabble..mumble...mumble...1,2,3,4 SCORE!

 

[Feral Feline]

You've got the top-hat(s), where're the tails and spats?

 

[fig]

Spats, wow. I remember the stench of Clorox rising from my freshly slightly over-bleached spats just before Contest in HS marching band.

 

[fig]

Oh yeah thanks!

@ 72° F​	Q1​	Q2​	Q3​
GAIN	60​	80​	119​
LEAKAGE	.023mA​	.030mA​	.033mA​

​

 

[fig]

.Sorry, I short-handed it. Q1 would be .023mA. As @Feral Feline wrote, I need to start using the correct units and symbols.

 

[fig]

It sounds like my electric razor against my skull so something must be right (or there's an awful tear in my speaker).

 

[uranium_jones]

I'm guessing GAIN is hfe/Beta? Where would I find "Leakage" on a data sheet/what variable do the EE's call it?

 

[fig]

I swapped R6 for a 20K trimmer. I'll dial it closer and throw up some voltages..

 

[fig]

Question: Aren't the gain/leakage ratios mostly relative between transistors (in fuzzy stuff anyway)?

 

[Coda]

With Ge fuzz, I am of the opinion that as long as it sounds good, you are good. If you like the sound, I wouldn’t worry too much about trying to get it right on paper…

 

[fig]

I prefer to have it set as prescribed initially to know it is functioning correctly. After that, it's my ear's turn.

 

[JamieJ]

I usually worry about leakage than gain, unless a circuit needs gain in a certain range. It also depends on what part of the circuit a particular transistor is in. In the tonebender Q2 makes the quality of the fuzz. Q3 effects the sizzle and heat. To much gain and it's to trebly, not enough and it's bland. I get in range and listen with my ears and not my eyes as many people do.

We definitely need your Tonebender master class Chris!!

 

[fig]

I'm just taking wild stabs in the dark.

That's what she said.

I'm going to fine tune it with resistors after the trimmers tell me how much.

 

[fig]

Hey...I'm here to learn, laugh, love, and rockNroll!

 

[JamieJ]

Hey...I'm here to learn, laugh, love, and rockNroll!