Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!
- FloPoeKo
- Breadboard Brother
Friends, a took a peak into a (now) defect yellow pfhazel...
This, to me, is a torroidal core... which makes this the same as the red one... Any thought or comments? Did I miss anything?
This, to me, is a torroidal core... which makes this the same as the red one... Any thought or comments? Did I miss anything?
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- ilcaccillo
- Breadboard Brother
Aren't both the Red fasel and the Yellow fasel torroidal cores?FloPoeKo wrote:Friends, a took a peak into a (now) defect yellow pfhazel...
This, to me, is a torroidal core... which makes this the same as the red one... Any thought or comments? Did I miss anything?
I think the principle is the same for both (toroidal cores) but the Yellow is supposed to have a more vintage sound and the Red a more modern sound.
- Manfred
- Tube Twister
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Did anybody read the inductance value of both Fasel coils?
- ilcaccillo
- Breadboard Brother
I don't have any that I could measure, but I guess the inductances are different.Manfred wrote:Did anybody read the inductance value of both Fasel coils?
- FloPoeKo
- Breadboard Brother
I will post a measurement of the yellow one and 11 red ones as comparison tomorrow...
- FloPoeKo
- Breadboard Brother
- FloPoeKo
- Breadboard Brother
As far as I can see, the only difference between the yellow and the red Fasel from current Dunlop production might be a higher inductance on part of the yellow ones.
But it is a toroidal inductor and definitely not a cup-core as advertised. I got a mail from one of the sales guys at Dunlop who admitted, that "technically it is a toroidal inductor but designed to sound like a cup core with a brighter more vintage tone" (and the sun revolves around earth in praise of gods creation).
I don´t know what they mean with that anyway.
A) the term "cup core" stands for "pot core" or what exactly?
B) I´ve measured vintage inductors and compared values with others who did. The vintage Fasels and others ones usually lie below 550mH (800mH as an aborration in the case of a coloursound-wha), have a capacitance of roughly 0.6uF and a Resistance of about 25-40Ω. What vintage ones do they mean their values match?
If I don´t (!) give them the benefit of the doubt, it looks as if there are those coils who have more windings which become the yellow ones, and those coils which have less windings become the red ones. Selected from the same run or intentionally wound in two ranges.
The black Dunlop Standard Inductor is the same thing if you open one up (don´t, it´s easily ruined. I can post one here if desired):
Toroidal Core, clear coated wire instead of the fancy red one and around 580-620mH as I measured...
Please post values and pictures if you have...
But it is a toroidal inductor and definitely not a cup-core as advertised. I got a mail from one of the sales guys at Dunlop who admitted, that "technically it is a toroidal inductor but designed to sound like a cup core with a brighter more vintage tone" (and the sun revolves around earth in praise of gods creation).
I don´t know what they mean with that anyway.
A) the term "cup core" stands for "pot core" or what exactly?
B) I´ve measured vintage inductors and compared values with others who did. The vintage Fasels and others ones usually lie below 550mH (800mH as an aborration in the case of a coloursound-wha), have a capacitance of roughly 0.6uF and a Resistance of about 25-40Ω. What vintage ones do they mean their values match?
If I don´t (!) give them the benefit of the doubt, it looks as if there are those coils who have more windings which become the yellow ones, and those coils which have less windings become the red ones. Selected from the same run or intentionally wound in two ranges.
The black Dunlop Standard Inductor is the same thing if you open one up (don´t, it´s easily ruined. I can post one here if desired):
Toroidal Core, clear coated wire instead of the fancy red one and around 580-620mH as I measured...
Please post values and pictures if you have...
- ilcaccillo
- Breadboard Brother
I have an original vintage Red Fasel inductor that I could measure if it's relevant.
Just let me know how can I measure inductance as I never done that
thanks
Just let me know how can I measure inductance as I never done that
thanks
- Manfred
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I would like to thank you for your offer to measure the inductance of the Red Fassel inductor.ilcaccillo wrote:I have an original vintage Red Fasel inductor that I could measure if it's relevant.
Just let me know how can I measure inductance as I never done that
thanks
For measuring an inductance measurement instrument is needed.
I have an impedance measurement instrument by this by this manufacturer as follows shown in the link.
http://www.peakelec.co.uk/acatalog/lcr45.html
I am very satisfied with it.
- FloPoeKo
- Breadboard Brother
Additional Information: I took a glance at a vintage red fusel from a JEN/VOX Wah-Swell... Looks like a P14x8 pot-core inductor inside... so much for Jim Dunlops reissue of the vintage fasel sound... The red one isn´t vintage-correct if that amounts to anything...
- ilcaccillo
- Breadboard Brother
I dont have the Peak LCR45.Manfred wrote:I would like to thank you for your offer to measure the inductance of the Red Fassel inductor.ilcaccillo wrote:I have an original vintage Red Fasel inductor that I could measure if it's relevant.
Just let me know how can I measure inductance as I never done that
thanks
For measuring an inductance measurement instrument is needed.
I have an impedance measurement instrument by this by this manufacturer as follows shown in the link.
http://www.peakelec.co.uk/acatalog/lcr45.html
I am very satisfied with it.
Any other way I could measure the inductance of the inductor?
- Manfred
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Some DMM have the inductance measurement function.
It it is also possible to go to an audio workshop and to aks them for measuring,
such worksshops are equipped with a big number of measurement instruments.
It costs nothing to ask.
It it is also possible to go to an audio workshop and to aks them for measuring,
such worksshops are equipped with a big number of measurement instruments.
It costs nothing to ask.
- ilcaccillo
- Breadboard Brother
my multimeter doesnt have the incuctance option.Manfred wrote:Some DMM have the inductance measurement function.
It it is also possible to go to an audio workshop and to aks them for measuring,
such worksshops are equipped with a big number of measurement instruments.
It costs nothing to ask.
I will go to a friends workshop and ask for the measurment
Greetings,
Here's the video (Red Fasel on Wylde/Dunlop Standard on Shelter):
Thanks in advance
Could you post it, please? I really can't hear this mojo magic when comparing them in the same circuit (even in different circuits with same part values). I did a side by side comparison. The only noticeable difference I adress to 1) tolerance and 2) Pot taper (linear in the modified circuit).FloPoeKo wrote:The black Dunlop Standard Inductor is the same thing if you open one up (don´t, it´s easily ruined. I can post one here if desired)
Here's the video (Red Fasel on Wylde/Dunlop Standard on Shelter):
Thanks in advance
- ilcaccillo
- Breadboard Brother
I measured today my vintage Red Fasel inductor.
It's from a JEN Italian crybaby, early 70s.
I measure it using the MK328 LCR meter, using the Atmega328 microcontroler, software version V1.04K
Measurements:
R= 39.4 ohm
L= 811mH
I know the L value of and inductor varies with the frequency it's being tested, I don't know the frequency at which this unit tests the inductors.
I know it has 8Mhz clock, but I don't know if thats the measuring frequency.
If different LCR meters , test at different frequencies the L values of the same inductor can change from meter to meter
It's from a JEN Italian crybaby, early 70s.
I measure it using the MK328 LCR meter, using the Atmega328 microcontroler, software version V1.04K
Measurements:
R= 39.4 ohm
L= 811mH
I know the L value of and inductor varies with the frequency it's being tested, I don't know the frequency at which this unit tests the inductors.
I know it has 8Mhz clock, but I don't know if thats the measuring frequency.
If different LCR meters , test at different frequencies the L values of the same inductor can change from meter to meter
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- FloPoeKo
- Breadboard Brother
Victor Nery wrote:Greetings,
Could you post it, please? I really can't hear this mojo magic when comparing them in the same circuit (even in different circuits with same part values). I did a side by side comparison. The only noticeable difference I adress to 1) tolerance and 2) Pot taper (linear in the modified circuit).FloPoeKo wrote:The black Dunlop Standard Inductor is the same thing if you open one up (don´t, it´s easily ruined. I can post one here if desired)
Here's the video (Red Fasel on Wylde/Dunlop Standard on Shelter):
Thanks in advance
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