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Post by lpedrum on Nov 17, 2015 15:23:59 GMT -6
I have an old Wurlitzer 140B that gets a lot of use here. I usually just mic up the internal speaker in the back because it sounds great that way. But, I'd also like to have the option of running it through pedals into an amp or the DI of a mic pre, and I'm not sure of the best way to do that. The rear panel has two jacks--a 1/4 inch SPEAKER jack and an RCA PHONO jack. On the front it has a mono 1/4 inch headphone out jack.
Any suggestions on the best way to run a line out of this Wurly? Is it possible or would I need to have an instrument jack installed somehow? Any help and suggestions are much appreciated!
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Post by jazznoise on Nov 17, 2015 15:50:15 GMT -6
Use the headphone out, and then the volume control can pad it as required.
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Post by lpedrum on Nov 19, 2015 9:06:42 GMT -6
Use the headphone out, and then the volume control can pad it as required. I gave this a try. It works but the headphone out is really hot to the point where I can barely apply any gain with the Wurly volume knob. Do you (or anyone) think that this ELECTRO HARMONIX ATTENUATOR PEDAL would be appropriate to pad down the gain from the headphone jack? |
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Post by mrholmes on Nov 19, 2015 10:18:19 GMT -6
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Post by jazznoise on Nov 19, 2015 11:28:49 GMT -6
Just make like a -20dB pad. Just takes a pair of resistors.
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Post by lpedrum on Nov 21, 2015 10:16:24 GMT -6
Just make like a -20dB pad. Just takes a pair of resistors. I've built a couple of 500 series mic pres, but I'm kinda lost without instructions. Are you saying I should build a little in/out box with resistors or open up the Wurly and attach resistors to the headphone out? Can you point me to someplace online that would explain how to do this? Thanks! |
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Post by jazznoise on Nov 21, 2015 10:47:01 GMT -6
Assuming it's a bad headphone amp, it can probably drive down to about 200 Ohms. Realistically we can assume it goes lower but let's keep the distortion levels low. You just need to tie a 500 Ohm resistor to ground and a 5K resistor in series with the hot cable. You could do it internally before the jack socket, might be the easiest spot.
You could make a little box if you wanted, but you'd buy a passive DI with a pad switch for cheaper than you'd build something as simple as that.
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