The complete BBD clock archive

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The complete BBD clock archive

Postby Fender3D » 25 Jun 2013, 11:34

Hello guys,

I hope this is the proper board for this thread

I noticed this great forum lacks the main info about BBD based pedals...
CLOCK.

Heck, we can search for every fuzz face's single node voltage, we have constant requests about "what voltage here and/or there" in workbench board...
but we have few or no info about BBD based pedals clocks.

I think we need an exaustive clocks archive if we wanna properly clone BBD based pedals.

I think max. and min. clock measured @ BBD pins and power supply used should be enough to nail THAT sound or, at least, to estimate delay time.

Please add your suggestions and/or tips.

Thanks.

This might be an example:

MXR Micro flanger:
I powered it with a stabilized power supply @ 9.6V
max clock freq at SAD's pin 1 is 850KHz (@ min rate)
min clock freq at SAD's pin 1 is 133KHz (@ min rate)

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Re: The complete BBD clock archive

Postby Scruffie » 22 Jan 2015, 14:10

EHX Echoflanger Frequencies courtesy of Graemey's Stompbox Secrets, taken at Pin1 of the 4013.

Tune - CW
Width - CCW
Rate - CCW
Feedback - CCW
Filter Matrix 341kHz
Double Track 110.9khZ

Tune - CCW
Width - CCW
Rate - CCW
Feedback - CCW
Filter Matix 54.5kHz
Double Track 17.71kHz

Tune - CW
Width - CW
Rate - CCW
Feedback - CCW
Flange 439-50kHz
Chorus 114-82kHz

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Re: The complete BBD clock archive

Postby Scruffie » 06 Aug 2015, 15:04

I collected some readings from another 2 Echoflanger after helping people debug them and set the clock to the factory setting.

1st Unit.

Settings
Tune - CW
Width - CCW
Rate - CCW
Feedback - CCW

Filter Matrix - 250kHz
Double Track - 66kHZ

Settings
Tune - CCW
Width - CCW
Rate - CCW
Feedback - CCW

Filter Matrix - 36kHz
Double Track - 10kHz

Settings
Tune - CW
Width - CW
Rate - CCW
Feedback - CCW

Flanger 35 - 330kHz
Chorus 14 - 20khZ

Second Unit

Settings
Tune - CW
Width - CCW
Rate - CCW
Feedback - CCW

Filter Matrix - 261kHz
Double Track - 81kHZ

Settings
Tune - CCW
Width - CCW
Rate - CCW
Feedback - CCW

Filter Matrix - 43kHz
Double Track - 14kHz

Settings
Tune - CW
Width - CW
Rate - CCW
Feedback - CCW

Flanger 40 - 365kHz
Chorus 20 - 28khZ

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Re: The complete BBD clock archive

Postby Dirk_Hendrik » 06 Aug 2015, 16:43

How easy it would be to add the P/N of the chip to the summing up. :secret:
Sorry. Plain out of planes.

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Re: The complete BBD clock archive

Postby Scruffie » 07 Aug 2015, 17:33

Dirk_Hendrik wrote:How easy it would be to add the P/N of the chip to the summing up. :secret:

Scruffie wrote:EHX Echoflanger Frequencies courtesy of Graemey's Stompbox Secrets, taken at Pin1 of the 4013.
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Re: The complete BBD clock archive

Postby tube-exorcist » 07 Aug 2015, 20:39

Isn´t normally meant with "P/N" the Part Number (e.g. SAD1024; MN3007) instead of the pin number of the clock driver ?

Just asking....
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Re: The complete BBD clock archive

Postby Fender3D » 09 Aug 2015, 17:38

MXR Flanger M117 courtesy of Dave oldschoolanalog @diystompboxes

readings taken at BBD's pins

stock power supply 15V

Unit1:
Width fully CCW
Manual fully CW 29KHz
Manual fully CCW 960KHz

Unit2:
Width fully CCW
Manual fully CW 32KHz
Manual fully CCW 965KHz
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