Now what is correct, 4.7H, 500mH transformer, 4700uH = 4.7mH?roseblood11 wrote:Is there really no better solution than using transformers as inductors?
4700uH inductors are avaliable on ebay.
Barcus-Berry Standard Preamp Model 1330 (OPAMP VERSION) [schematic]
- Manfred
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- soulsonic
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! ! ! ! Good catch!Manfred wrote:Now what is correct, 4.7H, 500mH transformer, 4700uH = 4.7mH?roseblood11 wrote:Is there really no better solution than using transformers as inductors?
4700uH inductors are avaliable on ebay.
"Analog electronics in music is dead. Analog effects pedal design is a dead art." - Fran
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One more Question.
What is the pin spacing of the potentiometers?
What is the pin spacing of the potentiometers?
- Manfred
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Hi Soulsonic,
to create this layout i made a template from the photos and had the problem that when the opamp pinout was right the pads for the potentiometers had a distance of 1/4".
Is this true or is the real distance 1/5", if necessary I will adjust the layout.
to create this layout i made a template from the photos and had the problem that when the opamp pinout was right the pads for the potentiometers had a distance of 1/4".
Is this true or is the real distance 1/5", if necessary I will adjust the layout.
- soulsonic
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The spacing I measured is 1/4". The original pots are the larger size CTS branded ones, like one usually sees in older guitars and amps. I believe they are approximately 1" diameter.
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Thanks!soulsonic wrote:The spacing I measured is 1/4". The original pots are the larger size CTS branded ones, like one usually sees in older guitars and amps. I believe they are approximately 1" diameter.
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