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Tech Help - Projects Page / HEADTRIP Voltages
« Last post by zgrav on Today at 01:28:55 PM »

I have assembled the Headtrip and encountered some difficulty.  Wiring and parts look OK after checking with DMM for continuity, and all voltages on the FV-1 are correct with the exception of pin 5.  According to the build doc, pin 5 should be at 3.2v.   It is soldered to the board, but according to the circuit diagram the board for that pin does not connect to anything.   On the FV-1 datasheet the pin is described as  "clip" with the explanation that it is for "clip LED output" (probably a clipping signal for an input that is too hot).  My voltage reading on that pin is in the low mV with no signal going in.  Should it really be registering 3.2v?

As for the effect, I get a clean dry signal, and some wet signal that is altered by the three pots.  But in addition to that I get a lot of weird variable high frequencies that sound like someone tuning a short wave radio.  Those sci-fi noises drown out the audio signal.   I still need to trace the audio signal with a probe to make sure a clean signal is going in to the FV-1, but I'm also thinking I might have gotten a bad FV-1 chip.  This was a purchase from an ali-baba seller so I won't be surprised if that turns out to be the case. 
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How Do I? Beginner's Paradise. / Combining a TS Circuit Into a LM386 Amp
« Last post by Harry on Today at 01:20:42 PM »
Hi All,
I'm building a 9v LM386 cigar box amp and want to include a bufferless TS type circuit that can be engaged as needed.  I just finished one of the CB Gitty ones and like it, but like it so much better with my TS-808 clone in front of it.  Essentially, I would like to have that in one package and use a toggle switch that would allow me to select between regular LM386 mode and TS mode.  I think it can be done, but I can't wrap my head around the best way to wire every thing up.  I'd like to build both circits on the same vero board.  Any help on how to wire all of this together and what type of toggle switch to use would be greatly appreciated.
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Tech Help - Projects Page / Re: Harbinger 2 Light Shield
« Last post by chongmagic on Today at 01:19:02 PM »
Pretty awesome pedal by the way, another hit!
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Tech Help - Projects Page / Re: Harbinger 2 Light Shield
« Last post by madbean on Today at 01:14:37 PM »
I'm still hoping to get a light shield available for the next batch. But the bottle cap method works, while being fairly ghetto.
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Tech Help - Projects Page / Harbinger 2 Light Shield
« Last post by chongmagic on Today at 12:59:41 PM »

I finished up the Harbinger 2 last night and it works, I just need to put a light shield over the LDRs and lamp. I am planning on just using a 20oz water bottle cap and black it out with a Sharpie. Is this what most are using for this?

I would love to make a 3d printed cap, but I would need a 3d printer for that.
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Open Discussion / Re: Ebay dropping the ball again
« Last post by fair.child on Today at 12:47:55 PM »
Very sad story, sorry to hear that. Mind to tell us what were trying to buy?
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General Questions / Re: Switch Hunting
« Last post by Timko on Today at 11:40:51 AM »
A quick follow up:  I purchased these switches from Mouser.  It turns out there is space between the two poles to drill out part of the trace!  So if you're looking for a veroboard pcb slide switch this one appears to be a good option.
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Open Discussion / Ebay dropping the ball again
« Last post by lars on Today at 10:26:14 AM »
I recently purchased an Ebay item for a great price, but it wasn't outrageously great, not "a score", so to speak. I patiently waited for the item to arrive. Several days after the estimated arrival date, I began to wonder what had happened. Then I got an email that the order had been cancelled and I was going to receive a refund (none of which I had been contacted about or authorized). I contacted the seller and all they said was that the item was now magically "damaged", so they never shipped it.
I'm calling BS on that one, especially since I offered to receive the item anyway since I know I could fix it.
No, what most likely happened is that they decided what I paid wasn't enough in their mind and they sold it to somebody else for more money (they do own a pawn shop as well). I opened a case to explain that I didn't ask for or want the refund, but Ebay did nothing about it. The seller went back to not responding to any messages; Ebay closed the case and will not allow it to be appealed even though their site says, "you can appeal a decision within 30 days of the case being closed."
I tried Ebay's "we'll call you" option. When I got the call, it glitched out my cellphone and does not allow you to use your keypad to respond and just hangs up (convenient for them).

So as a review:  As a seller, if you at some point determine you didn't get as much money as you want for an item, you can just randomly cancel a completed order weeks afterwards without ever contacting the buyer or explaining anything. You also are allowed to randomly access a buyer's Paypal account, without their authorization, to dump the funds back into their account. Oh...and Ebay does nothing.
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Build Reports / Re: STOP - AMZ Q&D Compressor 2
« Last post by alanp on Today at 09:25:42 AM »
For SMD work, I usually get a spare enclosure (1590B, 125B or something), stick some blu-tack on top, and then stick the board on. It's a lot easier to work with the board, then.

Very nice, and I like the creativity with the shape and art!
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Build Reports / Re: STOP - AMZ Q&D Compressor 2
« Last post by mcasemo on Today at 08:51:56 AM »
Oh cool, that's a really good tip.   I did get some flux in a syringe, but did not have any magnification.   I got a usb microscope now and also the ring light/magnifying things, which i should have got years ago.
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