Tone Bender Mark II [BreadBoard]

[caiofilipini]

I have a Seeker MKII, happy to provide bias readings as a reference if it's interesting.

 

[fig]

Please, and thank you!

 

[caiofilipini]

Please, and thank you!

I'm out of town until Sunday, but I'll do it once I'm back.

 

[caiofilipini]

Alright, I'm back (and a little drunk) but I believe this is what my DMM is telling me about the Seeker:

Vcc=9.26V

Q1
Ve=0V (GND)
Vb=0.085V
Vc=8.05V

Q2
Ve=0V (GND)
Vb=0.097V
Vc=0.224V

Q3
Ve=0.135V
Vb=0.224V
Vc=8.18V

 

[fig]

Thanks Caio. I'll check these against my BB as soon as I'm done with the LGSM for Chuck's tutorial. It's using the PSIO currently.

A little drunk? In which direction are you headed?

 

[caiofilipini]

I just breadboarded an MKII that I really liked, and here's what I got as far as biasing and gain/leakage goes:

BATT: 8.9V // Q1c: 7.8V // Q2c: 0.37V // Q3c: 6.65V
Q1: hFE=77 / leakage=132uA
Q2: hFE=68 / leakage=22uA
Q3: hFE=106 / leakage=279uA

Here's a quick clip:

https://soundcloud.com/white-mockingbird%2Fmkii-breadboard%2Fs-1V7yDPvREaz

 

[JamieJ]

I just breadboarded an MKII that I really liked, and here's what I got as far as biasing and gain/leakage goes:

BATT: 8.9V // Q1c: 7.8V // Q2c: 0.37V // Q3c: 6.65V
Q1: hFE=77 / leakage=132uA
Q2: hFE=68 / leakage=22uA
Q3: hFE=106 / leakage=279uA

Here's a quick clip:

https://soundcloud.com/white-mockingbird%2Fmkii-breadboard%2Fs-1V7yDPvREaz

That sounds incredible Caio!

 

[caiofilipini]

That sounds incredible Caio!

Thanks, @JamieJ!

 

[music6000]

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.

They pinched those transistors from Telecasters!

 

[Harry Klippton]

I just breadboarded an MKII that I really liked, and here's what I got as far as biasing and gain/leakage goes:

BATT: 8.9V // Q1c: 7.8V // Q2c: 0.37V // Q3c: 6.65V
Q1: hFE=77 / leakage=132uA
Q2: hFE=68 / leakage=22uA
Q3: hFE=106 / leakage=279uA

Here's a quick clip:

https://soundcloud.com/white-mockingbird%2Fmkii-breadboard%2Fs-1V7yDPvREaz

That sounds so good, better than the mkii I built a few years ago. Maybe I should revisit it with everything I've learned from Chris

 

[Harry Klippton]

Hey @caiofilipini what's your chain like in that clip?

 

[caiofilipini]

Hey @Harry Klippton, good question:

Gibson SG Standard w/ SD Seth Lover pickups /
MKII breadboard /
Friedman Mini Dirty Shirley 20W head /
Torpedo Captor X (I think I had Greenback IRs) /
Focusrite Scarlett 2i2