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Messages - Superstereosix

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16
Global Annoucements / Re: Order cartch-up - FYI
« on: July 09, 2014, 07:11:40 AM »
Glad you're better.

17
Tech Help - Projects Page / Re: Mudbunny VRH - no output.
« on: February 08, 2014, 07:29:05 PM »
another issue: really low output.

seems common, gonna track the signal when I get the chance during the week.

18
Tech Help - Projects Page / Re: Mudbunny VRH - no output.
« on: February 07, 2014, 09:54:07 AM »
Finally figured out what I did after inspecting everything.
Had a 100ohm instead of 100k in R14..
Ain't gonna get any gain like that… Hate those dumb mistakes.  Hopefully the 2 double flushes have simple issues…

Q3 now reads:
Vc: 3.76v
Vb: 0.62v
Ve: 0.03v

Still kinda low maybe.  I'll have to try to get some sound out of it.

Found some good analyses of the big muff like this:
http://www.electrosmash.com/big-muff-pi-analysis

19
Tech Help - Projects Page / Re: Mudbunny VRH - no output.
« on: January 28, 2014, 07:33:38 PM »
Possible C10 issue?  Loosing current into the next stage?
Not shorting out with continuity tester.
This is the one mod I made in the circuit.  I couldn't get a 4n cap so I put a 3n9 in there.
Don't think it would cause this.

Gonna put R15 back in.

20
Tech Help - Projects Page / Re: Mudbunny VRH - no output.
« on: January 28, 2014, 07:09:45 PM »
Lifted one leg of R15 and it measures 466k.  So its not open.
Checked all continuity and everything is where it should be.
I'm gonna take an old tooth brush to it.  Wash away some flux..

Anybody have a Violet and could take some readings?

Might have to put this down till after work tomorrow..

21
Tech Help - Projects Page / Re: Mudbunny VRH - no output.
« on: January 28, 2014, 06:11:16 PM »
Took a couple of pictures after I reflowed everything around Q3.
R15 is the 470k metal film 3rd up from the bottom right hand side.
I'm gonna take it out and see if I get the same results. 

I'll also check the continuity of the traces while its out.

22
Tech Help - Projects Page / Mudbunny VRH - no output.
« on: January 28, 2014, 02:32:06 PM »
Hey guys, finally got this muffer together and got nothing when I put it through the test rig..
Q1: Vc=3.8v, Vb=0.62v, Vc=0.03v
Q2: Vc=4.12, Vb=0.65v, Vc=0.06v
Q4: Vc=4.53v, Vb=1.73v, Vc=1.16v

I think I've located the problem around Q3.
Vc= 8.49v
Vb= 0v
Ve= 0v

R15 has 8.49v on the collector side and 0v on the other.  I figure it's open; R14 and R16 both read 0v on both sides..
I'd like to know what do you guys think before I start.. 

Any other readings I should take?  I switched the 5088 I had in Q4 with Q3 initially and got the same basic readings.

23
Global Annoucements / Re: 12.13 Etcher's Paradise update
« on: January 03, 2014, 08:43:06 PM »
Totally insane!

24
Open Discussion / Re: Limited time only
« on: June 18, 2013, 07:24:35 PM »
Hope all is well..

25
Open Discussion / Re: John Fogerty AMA on Reddit
« on: June 11, 2013, 06:39:54 PM »
Saw him last year in Moncton and he can play..
He fell down and got right back up again.

Don't read many AMAs but I like them..  I tried to keep up with a Jason Eisner one after Hobo with a Shotgun came out but it got long..

26
Open Discussion / Re: It's freaking freezing right now.
« on: June 11, 2013, 06:27:42 PM »
Windchill?
It always brings us down 10 degrees..


Puzzler to me? In the winter the thermostat for our house is set at 18-19°c (during the day) which means wearing pants, sweater sometimes throwing a fleece jacket on if i want to feel hot while sitting around (and way more then i wear when out shovelling the snow.) It's starting to finally get warm outside but the house is still maintaining the same temperature, now shorts and a t-shirt are more then adequate to stay comfortable inside. What gives, why is 18°c in the winter feel so much colder then a summer 18°c ?

dave

27
Open Discussion / Gotta empty 1590B..
« on: January 15, 2013, 03:15:16 PM »
I bought a batch of those blemished boxes from Mammoth and not sure what to do with one of them.  It looks nice: Black metallic sparkle.. but it's got like 5 16mm pot holes..  I'm thinking maybe my first trem ala Tremelous Lune but I'm open to other ideas..  What would you do with it?  I have some UV leds that would reflect nice I figure.  Pilfered a black light from work.

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