× The One Watt Open Hardware Guitar Amplifier.

Measuring 100 JFET J201 Transistors.

8 years 6 months ago - 8 years 6 months ago #355 by Ray

Rendering Error in layout Message/Item: array_keys(): Argument #1 ($array) must be of type array, null given. Please enable debug mode for more information.

Please Log in to join the conversation.

7 years 8 months ago #520 by kiyo
Hi!

What JFET do you recommend if we can't find J201?

Thank you very much!

Please Log in to join the conversation.

7 years 8 months ago #521 by Ray
Hi,
There is plenty of information online about the J201 substitute:
- J201 Substitute in diystompboxes
- J201 Substitute in madbeanpedal
- J201 Substitute in ssguitar.com


The J201 is quite unusual and it is still manufactured but in SMD model (not thuhole), some folks use a sot23 to thuhole adapter that works fine with some extra work.
Righ now I have checked mouser and they have J201 in stock (smd and thruhole models):
www.mouser.co.uk/All-Manufacturers/_/N-0...1+transistor&FS=True

However, if you are using for a different model, maybe the closest jfet you can get is the 2N5457, 2N5458 or MPF102.
You may need to adjust some resistors using this procedure:

Attachments:
The following user(s) said Thank You: kiyo

Please Log in to join the conversation.

7 years 8 months ago #522 by kiyo
Thank you very much Ray!

I live in Brazil, and unfortunately the shipping cost is very high so I will try to find some substitutes.

Thanks again!

Please Log in to join the conversation.

7 years 8 months ago #527 by Ray
Im not aware of suppliers for jfets in Brazil, maybe asking in audio forums you can get some ideas. However finding alternative parts and adjusting them to your circuit is fan and can lead you to new sounds :woohoo:

Please Log in to join the conversation.

7 years 8 months ago #530 by kiyo
Yeah, I just found a bunch of 2N3819 in a local electronics store. I'll play with them and have some fun, hehe.

Thank you very much Ray! This website is amazing, I learn a lot with it every day.

Best regards!
The following user(s) said Thank You: Ray

Please Log in to join the conversation.

Time to create page: 0.070 seconds

Follow us

You can also follow us on:

facebook   google   instagram

pinterest   youtube   twitter