Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

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Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby FloPoeKo » 03 Sep 2016, 17:01

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? :hmmm:
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby ilcaccillo » 13 Sep 2016, 04:42

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? :hmmm:


Aren't both the Red fasel and the Yellow fasel torroidal cores?

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.
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby Manfred » 13 Sep 2016, 08:50

Did anybody read the inductance value of both Fasel coils?
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby ilcaccillo » 13 Sep 2016, 12:59

Manfred wrote:Did anybody read the inductance value of both Fasel coils?


I don't have any that I could measure, but I guess the inductances are different.
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby FloPoeKo » 23 Sep 2016, 21:11

I will post a measurement of the yellow one and 11 red ones as comparison tomorrow...

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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby FloPoeKo » 05 Oct 2016, 14:04

Here it comes with bit of delay:
12 red current production Jim Dunlop Fasel Inductors and 1 yellow fasel.
For sake of a valid comparison I invite everyone who has a yellow one at hand to post his measurements. :horsey:
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby FloPoeKo » 06 Oct 2016, 08:53

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...

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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby ilcaccillo » 27 Oct 2016, 03:41

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

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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby Manfred » 27 Oct 2016, 09:28

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


I would like to thank you for your offer to measure the inductance of the Red Fassel inductor.

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.

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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby FloPoeKo » 08 Nov 2016, 23:11

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...
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby ilcaccillo » 15 Dec 2016, 01:43

Manfred wrote:
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


I would like to thank you for your offer to measure the inductance of the Red Fassel inductor.

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.


I dont have the Peak LCR45.

Any other way I could measure the inductance of the inductor?
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby Manfred » 15 Dec 2016, 12:02

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.
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby ilcaccillo » 15 Dec 2016, 23:26

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.


my multimeter doesnt have the incuctance option.

I will go to a friends workshop and ask for the measurment
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby Victor Nery » 26 Nov 2017, 04:18

Greetings,

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)


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).

Here's the video (Red Fasel on Wylde/Dunlop Standard on Shelter):

https://www.youtube.com/watch?v=7djuxdGSIJI

Thanks in advance
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby ilcaccillo » 27 Nov 2017, 21:47

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
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Re: Dunlop/Cry Baby´s Yellow Fasel no cup-core ?!

Postby FloPoeKo » 21 Dec 2017, 00:31

Victor Nery wrote:Greetings,

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)


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).

Here's the video (Red Fasel on Wylde/Dunlop Standard on Shelter):

https://www.youtube.com/watch?v=7djuxdGSIJI

Thanks in advance
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