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Messages - mikef

#16
backside. I noticed some dicey points that needed to be re-flowed and i removed one or two bridges. Now , the voltages, some are close/dead on when I do a volt reading but the following ones are off:  Q3       Q 12
                                                                                                            C 13.5        C 9.2
                                                                                                            B 4.4          B 9.08
                                                                                                            E 0.0          E  0.6

The IC LT1054 has the following
1 .01    5 0
2 4.94  6 4.9
3 0       7 5.7
4 .01    8 9.0
Any help will be so greatly appreciated

 
#17
Hello! I have put together the Harbinger Two, but,alas, it is not running like it should.
I had a soldier bridge between two pins on theLT1054 that I corrected. (The ic got a tad bit hot, so it was replaced.)  I have it on 9v regulated bench power, and control wise, the volume is functioning as it is supposed to, the speed is not working, ie no change at either end of the sweep. The intensity, at either end of the pot produces no visible change,unless it's in the middle position. The gain and offset trimmer pots only change the brightness. Now, if I sweep my fingers over the 4 ldrs i get the swooshy goodness!
#19
Hello! I am wondering what y'all do to shrink down the sometimes to large,say1.2M size to a smaller KB acceptable one so as to post here. Thanks :-[
#20
Brian, what about a  non-polarized- taltalium or poly or ceramic cap rated at 2.2uf?
#21
 Thanks Mr. Bean!
it's a minor setback. Glad YOU are on the mend. Gonna get a few from Mammoth.(They are candy apple metallic green!)  Them chips are like a lot of cashola and I shant risk it with otherwise. I was tempted to use some 16v 220uFs in that quad section, but was not wanting to see the dreaded Blue smoke of death. (I'm still freaked out about the Black Rabbit from that Watership Down cartoon,lol!)
#23
Hullo! Well, I had to break down n order some smaller diameter caps from Mouser (Out of the 2.2uf and 100uf) and was  looking at the 2.2uF  Electrolytic cap in the C4 position and I will be switched if I can see any polarity markings on the PCB. I checked the schematic to see if there was a polarity indicated by that plus sign, but no indication either. Is this a non polarized cap, or typo or what? Can someone let me know  the correct orientation using the IN located one one side/the murata IC on the other? Thanks!
#24
     Hello! My build of Brian's Harbinger two is going along nicely, but I have gotten to the Electrolitical cap stage and have notice a few discrepancies. I scanned the forum for possible corrections and double checked the files that are available over on the main page,thinking that I had an outdated  build docs,but not that I can see.

    Anyway,The Cap designated C30 ,100uF on the  physical PCB, is not on the shopping list page, it does appear on the B.O.M. page. On the schematic, there is a C30,with a 220uf. (The dual 220ufs are C29 and C26.)  !?! and thanks!

#25
Hullo!
I am having a bit of trouble finding the correct size   220 electrolytic  capacitors for the rustbucket and the harbinger two (wah shell version). Tho capacitors I have are quite large and simply will not fit the board without some serious gerrymandering of the parts.  both require  a cap rated at least 25 volts, but the size seems more fitting to the 16 volt sized variety. I am looking for a supplier that has the correct size that will fit. I order from Small Bear and Mammoth electronics, but all they have are these $#@$@% big ones!
#26
General Questions / Re: meat sphere trouble
July 13, 2019, 02:59:29 PM
Quote from: alanp on July 13, 2019, 12:29:23 PM
Glad it's working for you. The Meatball is my favourite envelope filter pedal, but it's the absolute worst for settings that do nothing. (The Ring Stinger is different, every setting does something, just maybe not something musical that you want.)
Thanks!c Well,we shall see.just got the leds going...getting it to actually quack,that's still up in the air!
#27
General Questions / Re: meat sphere trouble
July 13, 2019, 03:56:25 AM
LOl. Looks like a simple misplacement of a wire had the green diffused leds shunted. Wire moved,TA-DA! (I tried the VTL 5c3s that are recommended, but it will not work at all with those!) Unit seems to still not be working, but I am going to goof with the settings and see what is up.  like PMowdes2 posted "Lastly the settings are critical.  Attack always has to be set less than decay, and the trigger does not work when the band width toggle is set to off (as opposed to half or full)"
#28
General Questions / meat sphere trouble
June 27, 2019, 10:10:25 PM
Hello! I am having some difficulty with the Meat Sphere,( taylors very sweeT pcb, i may ad)
Everything seems to work, but the two diffused green leds  are doing nothing at all. I tried the  VTL 5C3, but I thought they were faulty or just being difficult,as I read over on the other forum they were prone to be,hence opting for the 'Roll your own".
I did install and have  the TL 074 backwards the first time firing it up. I replaced it with a brand new one and also swapped out the LM1458, just to be extra sure. The Photocells  are small bear sku #9200s(CdS 5mm Light Resistance 10 Min,  50KMax,Min. Dark Resistance rated at 5megs.) and when I try different settings and sweep my hands oer them, they are  definitely doing what they are supposed to do. (I will put the leds/cds in a tube sheath/shrink-wrap after i get them greenies working) any input would be greatly appreciated!
#29
Hullo, oh ye brethren of the small boxes that contain galaxies of sound inside!
I have a Weller PES 51 soldering station and being a man of small means,(Actually a lot of the dough goes to Brian because of all them sweet pcbs n projects that issue fourth from the laddies lair,truth be told!) I was contented to use the one tip that was upon  the device,but seems to me 'tis time to replace it.
I know the finer pointed ones are in order for the delicate work? should I stick at getting genuine Weller tips. or some of these off brands ok? https://www.ebay.com/itm/5X-ShineNow-Quality-Replacement-tips-for-WELLER-WESD51-WES51-WE1010NA-PES50-ETS/153312153720?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3Dde90ebd71fcb45a396e0076305c2ca79%26pid%3D100675%26rk%3D5%26rkt%3D15%26sd%3D263935897723%26itm%3D153312153720&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A5e29e563-4b58-11e9-ba3f-74dbd180ffbe%7Cparentrq%3A9d09b16c1690abc229ac6396ffff5337%7Ciid%3A1



Any body that could chime in I would greatly appreciate it!
#30
Arrived yesterday in the mailbox. Super pleased!