Print Page - Boss style switching with J111? Will this work?

Title: Boss style switching with J111? Will this work?
Post by: JP19 on February 08, 2021, 06:36:54 AM

I want to try 'boss style' switching on a 12v pedal. I don't know what the best option is here but I'm currently thinking about using a J111.

I'm just looking at the datasheet:

VGSoff is -3 to -10V, so If I'm biasing my audio to 6v this should work shouldn't it? Then I can stop the audio by pulling the gate down to ground.

I'm not totally sure what other numbers matter here? (datasheet screen shot attached)

Would the J111 work or should I be looking for something else?

Thanks!

(https://i.postimg.cc/XGJB87rs/Screenshot-2021-02-08-at-11-24-05.png) (https://postimg.cc/XGJB87rs)

Title: Re: Boss style switching with J111? Will this work?
Post by: duck_arse on February 08, 2021, 08:27:01 AM

J111 is listed as "analoge switch" in datsheets I looked at, so should be good to go. can't hurt to try.

Title: Re: Boss style switching with J111? Will this work?
Post by: Rob Strand on February 08, 2021, 06:37:13 PM

J112 might be better. The original 2SK30A's and the later 2SK118Y's used by Boss for the JFET switching had Vgs_off max of -5V. (There was a instance where Vgs_off too small was a problem. It's in one of the posts on this forum.)

Title: Re: Boss style switching with J111? Will this work?
Post by: dschwartz on February 10, 2021, 01:42:10 PM

I've had good luck with 2sk208 and j112 for switching

Title: Re: Boss style switching with J111? Will this work?
Post by: iainpunk on February 10, 2021, 02:25:02 PM

i too can confirm the J112 to be working as a switch.

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DIY Stompboxes => Building your own stompbox => Topic started by: JP19 on February 08, 2021, 06:36:54 AM