envelope filter nightmares...arghhhhhhhhhhh...

[deadastronaut]

C10/10uf

0.80  with no signal,  same with a good whack..

[Gurner]

C10/10uf

0.80  with no signal,  same with a good whack..

what's the DC voltage on the right leg of C9?

[deadastronaut]

C9 right leg -

really slow drain from 0.99 when turning 9v supply off then on.....slow......slow.................to  0.03...


+ side is 3.84

[Gurner]

1  4.34
2  4.36
3  4.36
4  0.00
5  4.31
6  6.02
7  6.06
8  9.09

Something ain't quite right here still ...pin 6 & 7 should measure close to pin 5 ...and also the left leg of C9 should be pretty close to pin 7  which is 6.06V (which as I've just mentioned, I don't think is right!)....but you're saying it's presently 3.84V

this is the point I'd ask you to whip out your scope!

[deadastronaut]

ha ha Mr no scope...

re-measured my pins to be sure...

1  4.35
2  4.37
3  4.36
4  0/00
5  4.32
6  3.59
7  3.60
8  9.11

left of C9 = 3.60

arghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh my @#$%ing head....... @#$%ing EF's...arghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....

btw ive ordered some 2sk30a's...but won't get them for a while....china!!!!..too pricey over here!.


looking at this 'verified' layout depth pot 3 goes to source via a 47k..and bias pin3...
http://www.aronnelson.com/gallery/main.php/v/MarkMs-Gallery/album15/album76/Q_Triper_LAYOUT.jpg.html

hmmmmmm..compared to the schematic.
http://www8.plala.or.jp/KandR/cir_q-triper.html

i have a feeling the schematic isn't really up to it...going by the layout!..arggggggggggghhhhhhhhhhhhhhhh..............one day i'll get an EF working.....

i'll go through the nightmare task of disecting the layout and re-drawing the schematic i think...theres a few anomalies ive spotted comparing etc......@#$%ing @#$% @#$%ers

i may be some time.........

[deadastronaut]

ok i followed the layout and carefully redrew the schematic from it.. ....messy but you get the point..

i'll tinker and see if i can get the @#$%er going.....looks pretty much the same apart from pot wiring..




edit nope..