Germanium II
- Thread starter K Pedals
- Start date
chongmagic
Well-known member
Sweet I have one of these to build, how do you like it? Is that the new hammered Tayda enclosure?
K Pedals
Well-known member
I like it...
It a real quality standard distortion...
Yeah that’s the new Tayda box...
Chuck D. Bones
Circuit Wizard
Very nice! Love that hammertone finish! As soon as Tayda has another 15% off, sale, I'm ordering some. How does the tone and sustain of the Ge clipping compare to other BMPs you've built?
K Pedals
Well-known member
A lot less gain...
A little darker...
Not as much of that static sound of a big muff... a little smoother...
Mourguitars
Well-known member
Pretty work K Pedals !
Mike
Mike
chongmagic
Well-known member
Did you use an A50k for Sustain?
chongmagic
Well-known member
Could you do me a favor and take the voltages on your Q5? I am just getting unity gain and slight distortion. I don't think that should be the case.
I am getting around 3.8 on the emitter. The other are around 4.5 or 9v.
I am getting around 3.8 on the emitter. The other are around 4.5 or 9v.
chongmagic
Well-known member
I meant the collector. The emitter is about the same for me.
chongmagic
Well-known member
Compared it to my Aion G2 and they are pretty close in sound.
Chuck D. Bones
Circuit Wizard
Looks about right to me.
Chuck D. Bones
Circuit Wizard
Chong:
The amount of gain you get is going to be very dependent on the leakage in the Ge diodes. They don't just leak DC current, they leak AC current too and that makes more negative feedback around Q4 & Q5, reducing gain. Cornish probably hand-picks the diodes in his builds.
The amount of gain you get is going to be very dependent on the leakage in the Ge diodes. They don't just leak DC current, they leak AC current too and that makes more negative feedback around Q4 & Q5, reducing gain. Cornish probably hand-picks the diodes in his builds.
chongmagic
Well-known member
I used some D9V and only measured the forward voltage which was pretty much consistent for all four. I didn't measure the leakage though, probably should have.
I remember over at Madbean that jubal81 figured out something with reverse resistance and the role it plays in how much a diode will clip. You basically measure the resistance going through the diode in one direction, then the other. I don't remember which direction is which, but the higher of the two readings is usually the reverse resistance. Is this the same thing as figuring out the leakage? Anyway, I think you want higher numbers--500k would not distort much; 2m or above is better. The one wrinkle here is that your DMM needs to be able to read resistances of 2m or more. Mine does not so I haven't personally tried this out yet.
geekmacdaddy
Well-known member
Very nice build.
