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Jfet matching- yes i read RG's article :)

Started by jimbob, July 21, 2005, 05:01:20 PM

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jimbob

July 21, 2005, 05:01:20 PM
And-- when it gets down to it- Do you either have to luck out and get matching ones from a small handfull or do as he did and check 76 of them? I was wondering why Smallbear dont sell matched pairs? How does anyone ever build a phase 90? Do i assume they went though a huge number before they got a matching set or 2?
"I think somebody should come up with a way to breed a very large shrimp. That way, you could ride him, then after you camped at night, you could eat him. How about it, science?"

D Wagner

#1
July 21, 2005, 05:18:28 PM
Quote from: jimbobAnd-- when it gets down to it- Do you either have to luck out and get matching ones from a small handfull or do as he did and check 76 of them? I was wondering why Smallbear dont sell matched pairs? How does anyone ever build a phase 90? Do i assume they went though a huge number before they got a matching set or 2?

Jimbob,

Yes, it takes a lot of matching.  But, 100 2N5952's from Mouser will only set you back $7.00.  http://www.mouser.com/index.cfm?handler=displayproduct&lstdispproductid=262687&e_categoryid=277&e_pcodeid=51258

An evening at the kitchen table, and you would have a few piles of matched FETs for projects that you might need them for.  You could always build a PWM phaser.  No matching required.   :P

Derek

jimbob

#2
July 21, 2005, 05:25:25 PM
yea- thats not too bad i guess. I was under the impression it was a lot more than that. I think ill give'r a try some time. Maybe ill make a few of them(phasers) while im at it.
"I think somebody should come up with a way to breed a very large shrimp. That way, you could ride him, then after you camped at night, you could eat him. How about it, science?"

jimbob

#3
July 21, 2005, 05:30:18 PM
Or- i just realized- forget bout the phase 90's. Theres the EH Small Stone and many other great ones that dont include such an issue.
"I think somebody should come up with a way to breed a very large shrimp. That way, you could ride him, then after you camped at night, you could eat him. How about it, science?"

barret77

#4
July 21, 2005, 05:49:10 PM
by the way, if anyone is interested in selling me a pair of matched j201, please pm me... I bought some but could not find a matching pair, pretty sad. I just don't want to buy more and more and then have a stock of jfets for more pedals than I'll probably do this life

loki

#5
July 21, 2005, 07:34:32 PM
hey this site here sells matched transistors
http://www.banzaieffects.com/europe/index.html

yeah it's in europe, but still...

barret77

#6
July 22, 2005, 09:25:12 AM
yeah, it's cheaper to buy 100 jfets than 4 from that site...

jimbob

#7
July 22, 2005, 10:21:09 AM
How much is that in us $$
"I think somebody should come up with a way to breed a very large shrimp. That way, you could ride him, then after you camped at night, you could eat him. How about it, science?"

audioguy

#8
July 22, 2005, 10:38:39 AM
Whats the +/- range to call something a 'match'?
I did about 10 last night and not one was a 'match' but several were within 5 or so HFE.

Audioguy
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