EHX - Bass Blogger [schematic]
- Bernardduur
- Transistor Tuner
So I got this pedal as I am really a bass player and wanted to see if it would fit my needs.....
it is a weird pedal.......
On drive mode the volume knob does not function.
The unit cannot be daisy chained.
The filter sounds great on bass!!
The fuzz mode is simply wonderfull, like a less compressed muff
The voltages are measured with a CIOKS baby which gives 8.9V DC
Off: V+ = 0.09V; V- = 0.00V
On: V+ = 4.63V; V- = -3.96V
it is a weird pedal.......
On drive mode the volume knob does not function.
The unit cannot be daisy chained.
The filter sounds great on bass!!
The fuzz mode is simply wonderfull, like a less compressed muff
The voltages are measured with a CIOKS baby which gives 8.9V DC
Off: V+ = 0.09V; V- = 0.00V
On: V+ = 4.63V; V- = -3.96V
'No more....... loud music.......'
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
- Bernardduur
- Transistor Tuner
, didn't even seen that
'No more....... loud music.......'
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
- Blitz Krieg
- Breadboard Brother
cannot be daisy chained?
- Bernardduur
- Transistor Tuner
Nope!Blitz Krieg wrote:cannot be daisy chained?
'No more....... loud music.......'
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
- mictester
- Old Solderhand
Information
Any distortion effect before it is going to be affecting the envelope detection, and the output impedance is a bit high for a modern device... You should be able to put things after it.
"Why is it humming?" "Because it doesn't know the words!"
- mictester
- Old Solderhand
Information
Having said that.... the output Z is lower that I thought at first glance - why won't it daisy chain?mictester wrote:Any distortion effect before it is going to be affecting the envelope detection, and the output impedance is a bit high for a modern device... You should be able to put things after it.
"Why is it humming?" "Because it doesn't know the words!"
- Dirk_Hendrik
- Old Solderhand
Information
Am I the only one getting a headache from this circuit and getting more and more suspicions on the (lack of) correctness? Let's take an easy example: The way the parallel darlingtons that seem to drive the red LED do so from the input of an opamp. Someone willing to explain the function?
Information
- Posts: 1
- Joined: 04 Oct 2019, 05:16
Those Darlingtons are the output buffers built into the LM13700 which are more specifically operational transconductance amplifiers which can kinda be thought of as a pair of CA3080's and the Darlingtion output buffers.Dirk_Hendrik wrote:Am I the only one getting a headache from this circuit and getting more and more suspicions on the (lack of) correctness? Let's take an easy example: The way the parallel darlingtons that seem to drive the red LED do so from the input of an opamp. Someone willing to explain the function?
- Bernardduur
- Transistor Tuner
Believe now it is fine!
'No more....... loud music.......'
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1