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DIY Stompboxes => Building your own stompbox => Topic started by: fiestared on February 03, 2021, 03:49:51 AM

Title: True bypass loop pedal, switch pop
Post by: fiestared on February 03, 2021, 03:49:51 AM
I built a passive true bypass loop pedal with this schematic, https://images.app.goo.gl/Z2Xr5VkLsKt2mB8c6

When I engage it I get a loud pop, so thinking I might need a pulldown resistor on any other mod? Grateful for help! The pedal it is used with does not pop...


(https://i.postimg.cc/18pDJF1V/20210203-094312.jpg) (https://postimg.cc/18pDJF1V)
Title: Re: True bypass loop pedal, switch pop
Post by: antonis on February 03, 2021, 05:40:46 AM
You can try a 2M2 or so resistor between every individual jack Tip & Sleeve..
(although Send Tip is grounded when loop is out of order..)

P.S.
I see you're using 3PDT switch so it should be more convenient to implement below configuration:

(https://i.imgur.com/6uRta6L.gif)
Title: Re: True bypass loop pedal, switch pop
Post by: Phend on February 03, 2021, 07:32:55 AM
http://www.geofex.com/article_folders/millenium/millen.htm

Do many of you use this bypass, saw it on the engineers thumb post.
Title: Re: True bypass loop pedal, switch pop
Post by: duck_arse on February 03, 2021, 08:33:45 AM
millenium2-wise, I use it on [nearly] every build.
Title: Re: True bypass loop pedal, switch pop
Post by: Mark Hammer on February 03, 2021, 11:48:53 AM
https://www.diystompboxes.com/smfforum/index.php?topic=112946.msg1044060;topicseen#msg1044060