OMG not already...
- Thread starter DoS
- Start date
Either way Randy, I think you guessed my mistake. Theres only three resistors that look anything like the ones used in these cases. I guess I'll have to get new ones (jesus christ, it takes forever when you can't buy anything local). Do the swap on the B sockets. Rather perform surgery.
Grainger49
New member
DoS,
When is the last time you changed the battery/batteries in your meter?
When is the last time you changed the battery/batteries in your meter?
Grainger49 said:
I just extended the one resistor with a solid piece of wire. It isn't the cleanist look but I guess only my pride is at stake here. The amp works now!
The amount of RF my cable is picking up sucks though. This town has too many damn radio stations. I can always hear them in anything including bathroom fans, the one I sleep with, etc.
Thanks guys.
In the future I suggest labeling resistors that look super similar, some way. This isn't the first amplifier project I've had trouble with this. The last time the codes where identical if you just turned the resistor around, but because of the tiny, tiny, holes in the PCB I blew $80. Sure I should have a better multimeter, but the only thing I really need one for 99% of the time is AC mains.
Grainger49
New member
Many of us, especially in my age bracket, measure first. My eyes are going.
When I built my Eros a little over a year ago I had given up reading the colors or numbers off of the resistors. Very few were more than 0.5-1% off of face value.
When I built my Eros a little over a year ago I had given up reading the colors or numbers off of the resistors. Very few were more than 0.5-1% off of face value.
Using decent quality tools often makes life much more enjoyable. Using a $10 or $15 digital multimeter to check the resistors before installing could have saved some grief in both projects. RE: the noise, is the pickup cavity shielded on your guitar? Are the strings grounded? And is your power outlet properly grounded? All of those things can make a big difference in terms of noise pickup. One can also shield single coil pickups by wrapping copper tape almost (you must leave a gap in the foil or it will interfere with the inductance of the coil) all the way around the coil and grounding it.
I don't have a proper ground on my AC in my old building. One wall has a ground, but it isn't proper.
The noise is RF, I mean you'd think the Tode was a pocket radio when a cable is plugged in, but open at one end!
The guitar itself when plugged in makes very little noise. Touching the volume knob or tone knob (metal) makes a little noise, touching the strings (which are grounded) eliminates most noise, and touching the case of the Tode amp eliminates all noise. I think it is lack of earth ground, and just this town over burden with radio stations. Seriously, you can hear it in EVERYTHING. I'm not joking that my old bathroom fan use to play rock'n'roll.
The only thing I wonder about now is EM and EF are quieter than flat, but that must be normal.
Can I increase the rate at which the feedback happens by lowering my 6.8k (my kit came with a 10k) to lower, like 3k? I ask because the Tode is pleasantly responding to one of my power conditioner I made, so well some extra crunch wouldn't hurt.
The noise is RF, I mean you'd think the Tode was a pocket radio when a cable is plugged in, but open at one end!
The guitar itself when plugged in makes very little noise. Touching the volume knob or tone knob (metal) makes a little noise, touching the strings (which are grounded) eliminates most noise, and touching the case of the Tode amp eliminates all noise. I think it is lack of earth ground, and just this town over burden with radio stations. Seriously, you can hear it in EVERYTHING. I'm not joking that my old bathroom fan use to play rock'n'roll.
The only thing I wonder about now is EM and EF are quieter than flat, but that must be normal.
Can I increase the rate at which the feedback happens by lowering my 6.8k (my kit came with a 10k) to lower, like 3k? I ask because the Tode is pleasantly responding to one of my power conditioner I made, so well some extra crunch wouldn't hurt.
Yup, the bad grounding in the AC mains will make things really noisy. My 70 year old house is like that and I get a lot of buzz from guitars that are dead quiet at the office, where our wiring is up to date. You can maybe go a little lower on the feedback resistor but that won't get you more crunch, that will reduce the crunch. More feedback means more clean, less feedback gets you more crunchy distortion. So you might want to increase that 6.8k resistor to get more distortion.
4
4krow
Guest
I think this may be related, so, here goes. I bought an 80 year old home 5 years ago. Lets just say everything was suspect from plumbing to electrical. In sight of that, I replaced everything. In the electrical, I knew that a good ground was an essential start. Fortunately, the water well housing went 25 ft. down, and was a very heavy duty type pipe. What could be better than that? In addition to this, I followed procedure, at least in part, to how we used to ground the radio sites for the phone company. I even added ferrite sleeves every 10 ft. to the dedicated AC line feeding my stereo. In todays enviroment, nothing is overkill.
We do not stock a 10K resistor, do the color codes match up to what the manual specifies?DoS said:
You could install a 50K pot in place of the 6.8K feedback resistor, then experiment with different values in that position until you get the range that you like with the control on the front panel.
Caucasian Blackplate said:
Maybe it is the 6.8k resistor. It looks exactly like it, but the color codes I could read said 10k. Its the only one in the package that looks like the one in the pictures, too.
Nice idea with an attenuator in there. I need to get someone to jam on my amplifier now anyway, given that I can't really play a song
