Messages

Ok..

Desoldered this one from an old project today. Pretty sure I have one more around somewhere. Real mojo.

Canned Mojo.

It’s a miracle any build works. I didn’t notice…3080, 308 all the same to me.

I ordered a Pickit Kit 3.5. I have the MPLAB software running. Hopefully it will recognize the hardware.
Hey with HEX code do you need to transcode it into binary before burning the chip?
Hopefully I'll figure it out.

Great resource! I missed the link first time around...

I tried doing the Keen method and got confused to the point where I look at the spec for the transistor and if it falls within that range, I just use it—not scientific, not best practices, I'll grant.

My tester which does Ge doesn't even show all the specs of what you've got, and my T7 won't do Ge at all.

This post on audiokarma goes into some detail about different types of testers. The Peak Atlas, of course, are the most thorough when it comes to transistors.

Although if yours is showing more, maybe the leakage current is accurate, at least for our purposes—someone on DIYSB laid it out:
ICE is indeed collector-emitter leakage (I=current, C=collector, E=emitter)
"o" (0?) means base is open
"s" means base is shorted

just speculation but maybe the confusion is caused by different results due to different conditions. My little transistor tester is running under 5v but Keen's setup is exactly at 9v using my linear power supply. Wouldn't that affect the leakage? Both Keen's and Tran tester get the hFE very close.

A lot of times images posted are a link to another server. If someone deletes it from their server or lets their site go down the pictures disappear   

Hmm, that is a weird one.  Have you checked that the LFO is working properly?  Scope would be perfect for that.

Probably a component mistake.. I'll go through it and double check the components around clock.

Thanks Thomas, I'll give that a try. I need to finalize the Flintlock and box it. Going build crazy after a 5-6 year break I'm finding a ton of projects that need finishing... Of course I want to buy all the new projects as well..

Interesting thread.
I would also love to see Triclops live again.

This thread got me to pull out a Parasit Studios Eagle claw octave fuzz build...  Has a CD4069UBE and some diode stuff going on.

Yep, looks like he has a 220n instead of a 240pf.
Sent from my iPhone using Tapatalk

Hey Jimilee, you know I can hear you… hehe

P.S. nobody caught the missing transistor..

Thanks for the help you guys, fresh eyes and all that…

That was it. 

"Captain, there Be Whales!"

Thanks Brian, Now I just need to figure out why the BBDs are motorboating. Audio gets there and then putt putt, putt...out of the chips. Voltages were looking good but my VOM finally gave up for no reason other than age.. Tomorrow's a new day...

After going back to the beginning of the calibration process, the 4047 is outputting 10hz square wave and when the delay pot is turned it goes to about 150hz.  At first I must have misread the 10Hz as 10khz....now to figure out what controls the clock freq. 

Anamorph Test PS @ 9.40V

IC1  TLO74

1. 7.51
2. 7.51
3. 7.45
4. 15.00
5. 7.51
6. 7.51
7. 7..51
8. 7.52
9. 7.51
10. 7.51
11. 0
12. 7.51
13. 7.51
14. 7.52

IC2 V571D

1.  1.04
2.  1.86
3.  1.86
4.  0
5. 1.86
6. 1.86
7.  4.70
8. 1.86
9. 1.86
10. 5.19
11. 5.19
12. 1.86
13. 15.00
14. 1.86
15. 1.86
16. 1.11

IC3 MN3005

1.  14.98
2. 7.49
3. 7.15
4. 7.15
5. .0
6. 7.49
7. 7.94
8. 1.03

IC4 MN3005

1. 14.96
2. 7.49
3. 8.75
4. 8.75
5. 0
6. 7.49
7. 9.23
8. 1.01

IC5 4558

1. variable
2. 7.84
3. variable
4. 0
5. 7.84
6. 7.78
7. 7.84
8. 15.00

IC6 CD4047

1. 7.39
2. 7.5
3. 7.51
4. 14.99
5. 14.99
6. 14.99
7. 0
8. 0
9. 0
10. 7.49
11. 7.49
12. 0
13. 7.44
14. 14.99

IC7 LT1054
1. 1.39
2. 4.95
3. 0
4. 0
5. 0
6. 2.59
7. 1.45
8. 9.04

Q1
1. C 15.04
2. B. 6.13
3. E  5.75

Q2
1. C  15.03
2. B  4.67
3. E  3.71

Q3
1. C 14.97
2. B  8.75
3. E  8.11

Q4
1. C  15.04
2. B  4.96
3. E  4.36

Q5
1. C  15.04
2. B  4.32
3. E  3.72

REG1 78L15
1. I   16.62
2. G  0
3. O  15.05

REG 2 78L15
1. I  16.64
2. G  0
3. O  15.01

Thanks Brian, Now I just need to figure out why the BBDs are motorboating. Audio gets there and then putt putt, putt...out of the chips. Voltages were looking good but my VOM finally gave up for no reason other than age.. Tomorrow's a new day...