Breadboard A Bare-Ass Boost

Started by smallbearelec, February 28, 2014, 02:52:35 PM

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smallbearelec

This was fun, satisfying and educational. Reminded me of college days in the lab for Electronics 101. You are on your own for right now as far as selecting parts, but I will gear up to offer sorted and tested JFETs in the next few weeks.

https://www.smallbearelec.com/HowTos/BreadboardBareAss/BreadboardBareAss.htm

joegagan

AAA for awesome anti-awkward alliteration


( i know illiteration is spelled wrahng)
my life is a tribute to the the great men and women who held this country together when the world was in trouble. my debt cannot be repaid, but i will do my best.

GibsonGM

Really nice write-up - some good tips in there and well-suited to the stompbox world - thanks!    I really enjoy the concise thang, as opposed to wrangling thru 80 equations to find the right one to get the job done!
  • SUPPORTER
MXR Dist +, TS9/808, Easyvibe, Big Muff Pi, Blues Breaker, Guv'nor.  MOSFace, MOS Boost,  BJT boosts - LPB-2, buffers, Phuncgnosis, FF, Orange Sunshine & others, Bazz Fuss, Tonemender, Little Gem, Orange Squeezer, Ruby Tuby, filters, octaves, trems...

induction

Quote from: joegagan on February 28, 2014, 04:38:39 PM
AAA for awesome anti-awkward alliteration


( i know illiteration is spelled wrahng)

You had it right.

alliteration:  the repetition of the same sounds or of the same kinds of sounds at the beginning of words or in stressed syllables

illiteration:  The repetition of spelling mistakes in the consonant sounds of words.
"Sychologists pstudy sychology" is an example of illiteration

/OT

joegagan

wow, thank you, i have learned something today.  i done been induct-O-fied!
my life is a tribute to the the great men and women who held this country together when the world was in trouble. my debt cannot be repaid, but i will do my best.

tubegeek

"The first four times, we figured it was an isolated incident." - Angry Pete

"(Chassis is not a magic garbage dump.)" - PRR

GibsonGM

Interesting point to add, that due to the differences between FETs, if you are measuring a J201 or similar you might need to omit the 51k resistor and just use the pot....you may need to get right up on the -1V to get to the Vp for some devices....as shown, you can reach around -.75V but no more.   

I did a couple this way, worked great, easy and accurate!
  • SUPPORTER
MXR Dist +, TS9/808, Easyvibe, Big Muff Pi, Blues Breaker, Guv'nor.  MOSFace, MOS Boost,  BJT boosts - LPB-2, buffers, Phuncgnosis, FF, Orange Sunshine & others, Bazz Fuss, Tonemender, Little Gem, Orange Squeezer, Ruby Tuby, filters, octaves, trems...