drgonzo1969
Well-known member
Wow! I had never heard of those. Thanks for posting. I want to make a DIY “nipple” now.
What’s on *YOUR* workbench?
- Thread starter Bricksnbeatles
- Start date
pettert
Clipping Connoisseur
The work in this case might not go past taking pictures, atleast the standard pcb from JLCPCB isn't good enough for these small WLCSP-type chips afaik.
LM2904 op amp with a S8050 BJT in SOT-23 package for size reference
PMCM4402 MOSFET, S8050 BJT in SOT-23 package for size reference
Merry Christmas, festive yuletide etc!
LM2904 op amp with a S8050 BJT in SOT-23 package for size reference
PMCM4402 MOSFET, S8050 BJT in SOT-23 package for size reference
Merry Christmas, festive yuletide etc!
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Feral Feline
Well-known member
Season's Gratings...
After Christmas-Eve dinner at friends, upon returning to the abode I sequestered myself to put something together.
I'd just like to note that I HATE putting in subs and fixes — If the build calls for a 1µ Electro, then that's what I want in there. Stuff doesn't get built 'til the correct parts come in.
Alas, the urge to build over-rode the OCD-behaviour and work commenced on this VFE SPS Yodeler.
Missing:
1k 1/8w
10k 1/8w
Assorted cap values *(many)
Resistor Array
I scrounged, scoured and scraped everything together, except the resistor array.
In fact, most of my time was spent on work-arounds and things like those blue caps near the PT2399's socket — those were from Electronic Goldmine, and most were way out of spec, but out of a couple dozen, I found two that were the correct 82n. It's just the filtering for the PT-chip, I could've gone for the DELAY value of 100n instead of the ECHO's 82n, but... Ennnyhoohah, the blue buggers saved me from wiring 470n and 100n in series (82n456), or 47n+33n in parallel (80n & add another 2n? SPACE?!) and other odd concoctions trying to hit the target. One of the first five blueies measured 82n, then I had to keep measuring and the third-last one was also 82n — the only two 82n amongst a couple dozen ranging from 76 to 92.
I kept coming up against road-blocks, 100n caps with pF-sized footprints. Found my bag of bent-legged 100n such devices in the miscellaneous scrap pile of Electronic Goldmine stuff. EG to the rescue yet again.
The 10k resistors were made from TeePee-ing 9k1 and 910Ω resistors.
The 1k resistors were made from bridging 910Ω and 91Ω resistors.
That blue fat 100µ cap should suffice, but I tucked a 47µ under it in parallel because the build is supposed to have a 150µF cap there.
The trimmers I had didn't fit, too big. Went through all my parts drawers until I found the correct type 10k... Subbed in 1µ tants for the called-for electrolytics.
Couldn't find any BS170, so for this one lone part is the only one I pulled from another build — Good thing I like SOCKETS!
(But I soldered it into the Yodeler.)
So, somewhere in a drawer is a small handful, probably not even a half-dozen, resistor arrays. No idea if they're the correct value or not, if I can even find them.
The enclosure's drilled, everything is just hanging on that resistor array now.
BTW, does anybody know that the "BBD" resistor footprint is about. Whatever it is, I noticed it's not populated on @jjjimi84's Yodeler.
Hope you're all having as much fun as I am! SEASON'S GREETINGS people!
PS: looking into making my own resistor array (1/4w 10k resistors)
After Christmas-Eve dinner at friends, upon returning to the abode I sequestered myself to put something together.
I'd just like to note that I HATE putting in subs and fixes — If the build calls for a 1µ Electro, then that's what I want in there. Stuff doesn't get built 'til the correct parts come in.
Alas, the urge to build over-rode the OCD-behaviour and work commenced on this VFE SPS Yodeler.
Missing:
1k 1/8w
10k 1/8w
Assorted cap values *(many)
Resistor Array
I scrounged, scoured and scraped everything together, except the resistor array.
In fact, most of my time was spent on work-arounds and things like those blue caps near the PT2399's socket — those were from Electronic Goldmine, and most were way out of spec, but out of a couple dozen, I found two that were the correct 82n. It's just the filtering for the PT-chip, I could've gone for the DELAY value of 100n instead of the ECHO's 82n, but... Ennnyhoohah, the blue buggers saved me from wiring 470n and 100n in series (82n456), or 47n+33n in parallel (80n & add another 2n? SPACE?!) and other odd concoctions trying to hit the target. One of the first five blueies measured 82n, then I had to keep measuring and the third-last one was also 82n — the only two 82n amongst a couple dozen ranging from 76 to 92.
I kept coming up against road-blocks, 100n caps with pF-sized footprints. Found my bag of bent-legged 100n such devices in the miscellaneous scrap pile of Electronic Goldmine stuff. EG to the rescue yet again.
The 10k resistors were made from TeePee-ing 9k1 and 910Ω resistors.
The 1k resistors were made from bridging 910Ω and 91Ω resistors.
That blue fat 100µ cap should suffice, but I tucked a 47µ under it in parallel because the build is supposed to have a 150µF cap there.
The trimmers I had didn't fit, too big. Went through all my parts drawers until I found the correct type 10k... Subbed in 1µ tants for the called-for electrolytics.
Couldn't find any BS170, so for this one lone part is the only one I pulled from another build — Good thing I like SOCKETS!
(But I soldered it into the Yodeler.)
So, somewhere in a drawer is a small handful, probably not even a half-dozen, resistor arrays. No idea if they're the correct value or not, if I can even find them.
The enclosure's drilled, everything is just hanging on that resistor array now.
BTW, does anybody know that the "BBD" resistor footprint is about. Whatever it is, I noticed it's not populated on @jjjimi84's Yodeler.
Hope you're all having as much fun as I am! SEASON'S GREETINGS people!
PS: looking into making my own resistor array (1/4w 10k resistors)
Last edited:
EisengesisFX
Well-known member
Figuring out a simple board for noise experiments (and with feline accompaniment) using my unused builds and a couple commercial pedals. The CH-1 + Dispatch Master combo was my go-to clean tone in my old post-punk band but now I'm flipping the order because the CH-1 is my only immediate means of stereo splitting 
lex_calibur
Member
I’m taking a short break from building pedals to build an amp so I can…test my pedals. I got all the way through wiring this 5f1 kit from Mojotone and realized in the testing phase that I had made a couple of wiring mistakes. Pulled the tubes, drained the caps, and fixed the errors, but it was too late for the rectifier. Now I’m just waiting for Santa to bring me a new 5Y3 so I can get back at it. Foiled again!
Attachments
jimilee
Well-known member
She’s a keeper!My mother-in-law gave me a the musikding kit of Aion Monolith (Lovetone big cheese) for Christmas - happy me!
Feral Feline
Well-known member
Season's Gratings...
After Christmas-Eve dinner at friends, upon returning to the abode I sequestered myself to put something together.
I'd just like to note that I HATE putting in subs and fixes — If the build calls for a 1µ Electro, then that's what I want in there. Stuff doesn't get built 'til the correct parts come in.
Alas, the urge to build over-rode the OCD-behaviour and work commenced on this VFE SPS Yodeler.
View attachment 108290
Missing:
1k 1/8w
10k 1/8w
Assorted cap values *(many)
Resistor Array
I scrounged, scoured and scraped everything together, except the resistor array.
In fact, most of my time was spent on work-arounds and things like those blue caps near the PT2399's socket — those were from Electronic Goldmine, and most were way out of spec, but out of a couple dozen, I found two that were the correct 82n. It's just the filtering for the PT-chip, I could've gone for the DELAY value of 100n instead of the ECHO's 82n, but... Ennnyhoohah, the blue buggers saved me from wiring 470n and 100n in series (82n456), or 47n+33n in parallel (80n & add another 2n? SPACE?!) and other odd concoctions trying to hit the target. One of the first five blueies measured 82n, then I had to keep measuring and the third-last one was also 82n — the only two 82n amongst a couple dozen ranging from 76 to 92.
I kept coming up against road-blocks, 100n caps with pF-sized footprints. Found my bag of bent-legged 100n such devices in the miscellaneous scrap pile of Electronic Goldmine stuff. EG to the rescue yet again.
The 10k resistors were made from TeePee-ing 9k1 and 910Ω resistors.
The 1k resistors were made from bridging 910Ω and 91Ω resistors.
That blue fat 100µ cap should suffice, but I tucked a 47µ under it in parallel because the build is supposed to have a 150µF cap there.
The trimmers I had didn't fit, too big. Went through all my parts drawers until I found the correct type 10k... Subbed in 1µ tants for the called-for electrolytics.
Couldn't find any BS170, so for this one lone part is the only one I pulled from another build — Good thing I like SOCKETS!
(But I soldered it into the Yodeler.)
So, somewhere in a drawer is a small handful, probably not even a half-dozen, resistor arrays. No idea if they're the correct value or not, if I can even find them.
The enclosure's drilled, everything is just hanging on that resistor array now.
BTW, does anybody know that the "BBD" resistor footprint is about. Whatever it is, I noticed it's not populated on @jjjimi84's Yodeler.
Hope you're all having as much fun as I am! SEASON'S GREETINGS people!
PS: looking into making my own resistor array (1/4w 10k resistors)
Hey folks, haven't been able to tackle the DIY array today, but hoping to do so Boxing Day.
I'm a little sleep-deprived (what else is new?), okay a LOT sleep deprived from being up all last-night scrounging up parts and soldering the Yodeler.
QUESTION, Sebastian(s): How do I determine on the Yodelayheehoo which end of the array gets the common?
For example, I found this DIY array online:
I've got an errand to run, when I get back I'll bust out the multimeter and probe the board, see if I can figure it out.
jessenator
Well-known member
How does one go about it on the age of LED and waning CFL? Halogen? Bootleg incandescent? A friend gave me one, but i seem to have misplaced it.
There are still 60w grow lights.
Also 100w rough service incandescents.
darwin999
Well-known member
also oven incandescent, as well as small decorative incandescent bulbs - e.g.,
www.globalindustrial.com
Incandescent Light Bulbs
Shop for Incandescent Light Bulbs in Light Bulbs & Lamps. Global Industrial is a Leading Distributor of Lighting & Electrical supplies.
www.globalindustrial.com
dot matrix madness
Active member
Dusky Electronics Hypathia on veroboard. Missed one cap and two resistores while redrawing the schematics, but
found my mistakes within minutes. Lost an SMD 5457 while soldering
(why always the expensive parts?).
BC547C as NPN and BC517 (NOS from the 80's) instead of MPSA13.
Update: Found the missing the SMD part while painstakingly searching the rug again. Also realized that I put in a 3n3 cap
where a 33nF should be. Easy fix, but I'll have to verify my copies of the original schematics better.
found my mistakes within minutes. Lost an SMD 5457 while soldering
(why always the expensive parts?).BC547C as NPN and BC517 (NOS from the 80's) instead of MPSA13.
Update: Found the missing the SMD part while painstakingly searching the rug again.
Also realized that I put in a 3n3 capwhere a 33nF should be. Easy fix, but I'll have to verify my copies of the original schematics better.
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Harry Klippton
Not Interested
In trying to figure out why this microcassette recorder doesn't record, I discovered that neither of the microphones was ever connected, looks like from the factory. The wires are snipped and have not been stripped
derevaun
Well-known member
Feral Feline
Well-known member
ds
The saga continues...
See that PINK one, #3?
Almost done and noticed I hadn't marked it, though I'm sure I already figured out where it connected — and then my DMM shat itself. The continuity light and beep don't work anymore. I'd just installed a new battery yesterday or the day before, but I threw in a new 9V anyway. Tried different leads, but the banana-plugs don't fit the CCDMM.
The DMM seemed to still work for measuring voltages, resistance... nope!
I gifted my other DMM to a friend. Once again I'm scrounging for parts, this time parts of my brain, the deepest recesses... Did I not have a spare DMM somewhere? Digging through my detritus, I delighted in discovering YES, a DMM MasterCrapt Canuckian Tired. It has a diode setting, but no beep, no flashy light — no matter! It shows zero resistance "000". I poked around some more for numbers to flare up and settle down to 000 and jackpot — discovered the 3rd pin is connected to the 2nd pin, which is connected to the 10k bone...
I thought this project had run aground on the shoals of Dangerous Ground...
... but I'm back in business. Or am I?
I'm still unsure of what VFE's Peter meant by a "10k strip x 1", that's it, there are no other instructions, no part #, no data-sheet references...
There appears to be no common ground as per the pic in my previous post, #9250.
Do I take 8 of my 10k 1/4w resistors and solder one side of each & all together and shove 'em in the board, hoping for the best upon power-up?
Or do I wait to get the correct part lest I permanently bodge-bork the build — what do I really know of resistor-arrays?
Inquisitive cat wants to know, but needs a cat-nap.
The saga continues...
See that PINK one, #3?
Almost done and noticed I hadn't marked it, though I'm sure I already figured out where it connected — and then my DMM shat itself. The continuity light and beep don't work anymore. I'd just installed a new battery yesterday or the day before, but I threw in a new 9V anyway. Tried different leads, but the banana-plugs don't fit the CCDMM.
The DMM seemed to still work for measuring voltages, resistance... nope!
I gifted my other DMM to a friend. Once again I'm scrounging for parts, this time parts of my brain, the deepest recesses... Did I not have a spare DMM somewhere? Digging through my detritus, I delighted in discovering YES, a DMM MasterCrapt Canuckian Tired. It has a diode setting, but no beep, no flashy light — no matter! It shows zero resistance "000". I poked around some more for numbers to flare up and settle down to 000 and jackpot — discovered the 3rd pin is connected to the 2nd pin, which is connected to the 10k bone...
I thought this project had run aground on the shoals of Dangerous Ground...
... but I'm back in business. Or am I?
I'm still unsure of what VFE's Peter meant by a "10k strip x 1", that's it, there are no other instructions, no part #, no data-sheet references...
There appears to be no common ground as per the pic in my previous post, #9250.
Do I take 8 of my 10k 1/4w resistors and solder one side of each & all together and shove 'em in the board, hoping for the best upon power-up?
Or do I wait to get the correct part lest I permanently bodge-bork the build — what do I really know of resistor-arrays?
Inquisitive cat wants to know, but needs a cat-nap.
@FF
Determine which side is pin one.10k resistor from all other pins to pin 1. I would solder them standing up, unsoldered lead to the sky, then solder a piece of solid core to pin 1, bend it at 90 and bend the R leads over it at >90. Put a alligator clip on the wire near pin 1 as a heat sink, then solder the resistors.
Pin 1 likely goes to ground, vcc or vref(or v+/v-/ground)
I can't read your black text so sorry if I missed something.
Determine which side is pin one.10k resistor from all other pins to pin 1. I would solder them standing up, unsoldered lead to the sky, then solder a piece of solid core to pin 1, bend it at 90 and bend the R leads over it at >90. Put a alligator clip on the wire near pin 1 as a heat sink, then solder the resistors.
Pin 1 likely goes to ground, vcc or vref(or v+/v-/ground)
I can't read your black text so sorry if I missed something.
dot matrix madness
Active member
Median Compressor on veroboard. Trim procedure with my Brymen BM869s multimeter. The enclosure is a TEKO B4,
which is somewhat larger than a 125B, but useful to accomodate larger PCBs and a multitude of potis. In the background:
part of my Eurorack stuff that provides +9V, +5V on USB jacks, and test signals.
which is somewhat larger than a 125B, but useful to accomodate larger PCBs and a multitude of potis. In the background:
part of my Eurorack stuff that provides +9V, +5V on USB jacks, and test signals.
