Solo Dallas - SVDS Replica [traced]
Some update: on my schematic, R14 should be removed. D3 value is 43A48A.
Voltage, 0V taken from input jack ring:
VCC: 12.09V
IC1 pins:
1: 5.81V
2: 5.82V
3: 5.73V
5: 3.64V
6: 0V
7: 3.64V
8: 11.58V
IC2 pins:
1: 0.95V
2.:1.79V
3: 1.79V
5: 1.80V
6: 1.79V
10: 7.24V
11: 7.24V
12: 1.80V
13: 11.58V
14: 1.80V
15: 1.79V
16: 0.78V
IC3 pins:
1,2,3: 0V
6: 5.06V
7: 11.73V
8: 11:87V
Voltage, 0V taken from input jack ring:
VCC: 12.09V
IC1 pins:
1: 5.81V
2: 5.82V
3: 5.73V
5: 3.64V
6: 0V
7: 3.64V
8: 11.58V
IC2 pins:
1: 0.95V
2.:1.79V
3: 1.79V
5: 1.80V
6: 1.79V
10: 7.24V
11: 7.24V
12: 1.80V
13: 11.58V
14: 1.80V
15: 1.79V
16: 0.78V
IC3 pins:
1,2,3: 0V
6: 5.06V
7: 11.73V
8: 11:87V
- EddieTavares
- Breadboard Brother
patricef great Job!!!
- apollomusicservice
- Resistor Ronker
Information
Values at pin 6 and 7 on IC1 can't be different.patricef wrote:Some update: on my schematic, R14 should be removed. D3 value is 43A48A.
Voltage, 0V taken from input jack ring:
VCC: 12.09V
IC1 pins:
1: 5.81V
2: 5.82V
3: 5.73V
5: 3.64V
6: 0V
7: 3.64V
8: 11.58V
My mistake, I rechecked again pin 6 and 7 are indeed at the same voltage.apollomusicservice wrote:Values at pin 6 and 7 on IC1 can't be different.patricef wrote:Some update: on my schematic, R14 should be removed. D3 value is 43A48A.
Voltage, 0V taken from input jack ring:
VCC: 12.09V
IC1 pins:
1: 5.81V
2: 5.82V
3: 5.73V
5: 3.64V
6: 3.64V
7: 3.64V
8: 11.58V
thanks patrice for this one
- EddieTavares
- Breadboard Brother
It looks like a diode, propably a 1n4148 smd version.
patricef mesure 0.246V with the multimeter in diode mode
- EddieTavares
- Breadboard Brother
This is the D5 in the patricief's schematic if I am correct. It looks like a reverse flow protection, I don't believe that it makes any tonal difference...
I believe that the sollo dalas guys tried to reproduce in the pedal every single component present in the original Shaeffer gadget, Why they implement R9, R15 and R17 all 8k2 resistors simply dropping a litle voltage?
I believe that the sollo dalas guys tried to reproduce in the pedal every single component present in the original Shaeffer gadget, Why they implement R9, R15 and R17 all 8k2 resistors simply dropping a litle voltage?
Information
Yeah, it looks like a diode by Vishay. Can't find anything specific by searching 43A 48A.boby6kiler wrote:nice schematic patrice
i don't find a good alternative to this :
[ Image ]
any idea ?
1N4348 ? Smd SOD-123 size ?
But I didn't find anything
But I didn't find anything
Sorry for my English ^_^
Hi, I drew this up a while ago and forgot all about it its very close to the schematic drawn by apollomusicservice with slight differences.
At the time I removed some of the surface mount capacitors to check the values so some on this drawing are low values but thats what I measured at the time.
This may help with some of the missing values.
Sorry for the drawing but I don't have a drawing programme.
At the time I removed some of the surface mount capacitors to check the values so some on this drawing are low values but thats what I measured at the time.
This may help with some of the missing values.
Sorry for the drawing but I don't have a drawing programme.
- Attachments
-
- Solo Dallas .pdf
- (750.85 KiB) Downloaded 401 times
-the 10nf in ic1 pin 2/1 verified with multimeter removed from the board?
-the 1nf in the area of 8,2k/2,2k verified with multimeter removed from the board?
-the 16pf in ic3 pin 3/6 verified with multimeter removed from the board?
thanks
-the 1nf in the area of 8,2k/2,2k verified with multimeter removed from the board?
-the 16pf in ic3 pin 3/6 verified with multimeter removed from the board?
thanks
Yes as far as I can remember if I could not measure the capacitor in the board then I removed it.boby6kiler wrote:-the 10nf in ic1 pin 2/1 verified with multimeter removed from the board?
-the 1nf in the area of 8,2k/2,2k verified with multimeter removed from the board?
-the 16pf in ic3 pin 3/6 verified with multimeter removed from the board?
thanks
thanks i will try this values
the circuit work with lovetone values
my proto
http://nsm07.casimages.com/img/2018/02/ ... 549832.jpg
http://nsm07.casimages.com/img/2018/02/ ... 549834.jpg
i don't know if the ic are ok or fake i don t have the exact voltage but i will try the ic like the original tsr to compare .
but seem to work
at the moment i have the 4,7nf but i will put the 1nf to try
http://nsm07.casimages.com/img/2018/02/ ... 549832.jpg
http://nsm07.casimages.com/img/2018/02/ ... 549834.jpg
i don't know if the ic are ok or fake i don t have the exact voltage but i will try the ic like the original tsr to compare .
but seem to work
at the moment i have the 4,7nf but i will put the 1nf to try
boby6kiler wrote:my proto
http://nsm07.casimages.com/img/2018/02/ ... 549832.jpg
http://nsm07.casimages.com/img/2018/02/ ... 549834.jpg
i don't know if the ic are ok or fake i don t have the exact voltage but i will try the ic like the original tsr to compare .
but seem to work
at the moment i have the 4,7nf but i will put the 1nf to try
Vintage passive components and even vintage wire !