madbeanpedals::forum

Projects => General Questions => Topic started by: gigelmargel on March 20, 2012, 07:47:59 AM

Title: Quqdrovibe light bulb
Post by: gigelmargel on March 20, 2012, 07:47:59 AM
Hello all and thank you Madbean for all your great work!!!

I've just finished a Quadrovibe, using a 14V/40mA light bulb instead of the 18V/28mA requiered (it was impossible to me to find one here, in Bucharest).

The problem it's that the lamp doesn't blink (it lock up or blink a little and fade out after I'm modifying the Gain or Chop trimpot).

The LFO works OK (the LED it's blinking), the signal passes in both modes (vibrato/tremolo), the T1 trimpot works.

I used a 1K trimpot for gain instead of 500 ohms and a 25K trimpot instead the 20K trimpot.

Best regards,
Radu
Title: Re: Quqdrovibe light bulb
Post by: gigelmargel on March 21, 2012, 05:13:28 PM
 ???
Title: Re: Quqdrovibe light bulb
Post by: gigelmargel on March 24, 2012, 04:11:50 PM
I am completely stupid...I didn't solder the LED...I thought that it's only for bypass, so I put it for a few seconds, without soldering it, on the back of the PCB to test the LFO and after I removed it ;D

Thank you again Brian for all your fabulous work!
Title: Re: Quqdrovibe light bulb
Post by: jkokura on March 24, 2012, 04:17:36 PM
So it's working now?

Jacob
Title: Re: Quqdrovibe light bulb
Post by: gigelmargel on March 27, 2012, 06:47:47 PM
Quote from: jkokura on March 24, 2012, 04:17:36 PM
So it's working now?

Jacob

Yes...it works very well :)
Title: Re: Quqdrovibe light bulb
Post by: Guitarmageddon on April 01, 2012, 05:24:46 AM
Quote from: gigelmargel on March 24, 2012, 04:11:50 PM
I am completely stupid...I didn't solder the LED...I thought that it's only for bypass, so I put it for a few seconds, without soldering it, on the back of the PCB to test the LFO and after I removed it ;D
Thanks for that!  :D
I've been trying to figure out why mine wasn't flashing- had omitted the Led ::)