timix
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Posts: 32
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Post by timix on Jan 17, 2022 5:34:52 GMT -6
This appeared on a FB group yesterday, "PYdynamic 500", USD$870. Claims to be based on the Pye 4060, but there is no technical info or back story or designer name detailed, I’m sure I read here somewhere that it is a no go zone, down the bottom of the too hard basket. There is a video but I’m not convinced based on this YouTube demo a comparison to an original would be a good call you would think, or even a plugin.....    |
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Post by matt@IAA on Jan 17, 2022 8:22:50 GMT -6
The only hard part of the original circuit is the inductor in the sidechain and the correct transistor for the pulse wave modulation. If he wound the inductor to get it to work the rest is pretty straightforward. There was a guy in Russia who was selling a DIY pcb kit that included instructions on how to wind the inductor a while back. You can also make a unit work with a 555 timer to generate the pulse.
I dono how you'd compare to an original unit - different transformers and stuff - but if it works it'll probably sound great. Some of that stuff on the top right looks a little sketchy, may want to ask about that.
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Post by srb on Jan 17, 2022 9:13:54 GMT -6
Interesting. Always wanted a pair of the real deal, but I'm through maintaining vintage studio equipment.
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timix
Full Member
Posts: 32
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Post by timix on Jan 17, 2022 9:56:03 GMT -6
"The only hard part of the original circuit is the inductor in the sidechain and the correct transistor for the pulse wave modulation. If he wound the inductor to get it to work the rest is pretty straightforward. There was a guy in Russia who was selling a DIY pcb kit that included instructions on how to wind the inductor a while back. You can also make a unit work with a 555 timer to generate the pulse. I dono how you'd compare to an original unit - different transformers and stuff - but if it works it'll probably sound great. Some of that stuff on the top right looks a little sketchy, may want to ask about that. " thanks Matt, I guess you mean this bit, looks a bit unusual & like something has been covered up  |
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Post by matt@IAA on Jan 17, 2022 10:32:13 GMT -6
Yeah there’s definitely been some rework there. Or something burned.
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Post by hadaja on Jan 17, 2022 12:39:42 GMT -6
Also thats aus$870. Another chap called Chad designed this in Australia.
Had a few conversations in the past with him. Seemed like a nice enough chap.
UPDATE.... sorry guys i was wrong . Price is actually usd$870 .
saw this facebook posting come through my Australian postings so i got the price wrong.
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Post by jmoose on Jan 17, 2022 17:50:39 GMT -6
Yeah there’s definitely been some rework there. Or something burned. Rework?! Looks like my grandma made toast... lol There's some burned up resistor pads under the transformer too... just down and to the left of the goober. I dunno. While I like to try and be positive about new stuff & new companies a huge part of me sees that kinda thing and just wants to run. Like I get the need for rework on occasion. And I've certainly burned up parts & lifted traces myself... however! If this is the very first photo of your new widget shouldn't it be one that's goober free? Its not a good look. Or at least not one that inspires any sort of confidence in the build quality. |
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Post by tasteliketape on Jan 17, 2022 18:53:39 GMT -6
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Post by tasteliketape on Jan 17, 2022 19:58:42 GMT -6
Here’s a response from the mfg quotes from the purple site
In response to the tape hiding something, it is The custom wound transformer that we'd rather keep secret since it took forever to figure out Nothing burnt, the solder flux on the white PCB boards shows up a gross brown burnt colour, I think we will change to a different colour PCB for the next run to avoid flux colouration.
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timix
Full Member
Posts: 32
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Post by timix on Jan 17, 2022 20:03:02 GMT -6
Also thats aus$870. Another chap called Chad designed this in Australia. Had a few conversations in the past with him. Seemed like a nice enough chap. Misinformation working OT here, so you think it’s US$630, for a hand built dual transformer module, I don’t think so. It’s AUD$1200 which is approximately US$870, according to their website, but that could be wrong and you could be right, who do you believe these days? |
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Post by matt@IAA on Jan 17, 2022 20:10:02 GMT -6
Here’s a response from the mfg quotes from the purple site In response to the tape hiding something, it is The custom wound transformer that we'd rather keep secret since it took forever to figure out Nothing burnt, the solder flux on the white PCB boards shows up a gross brown burnt colour, I think we will change to a different colour PCB for the next run to avoid flux colouration. Too late for secret.  groupdiy.com/threads/pye-compressor-limiter-thread-boards-shipping-bom-up.43351/page-57 |
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Post by pynamic on Jan 17, 2022 21:30:30 GMT -6
Hey guys, thanks for the interest in the project. To address the discolouration, it's actually the white PCBs; the solder flux leaves a brown resin on the pads that can to be scrubbed off with Isopropyl and a tooth brush, I didnt get to the top pads. Same with the resistor pads. We will be using black PCBs next time, and all our builds will be cleaned with alcahol before they ship out. My custom trannie is a little different from the one you posted Matt, but all does the same thing, spit out 250khz. I use a BC550 in this spot. The units are shipping for $1200 AUD. All the info is at our online shop www.pynamic.com.auOr flick us an email at admin@pynamic.com.au |
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Post by kyamcalvert on Jan 18, 2022 8:36:35 GMT -6
Hey guys, thanks for the interest in the project. To address the discolouration, it's actually the white PCBs; the solder flux leaves a brown resin on the pads that can to be scrubbed off with Isopropyl and a tooth brush, I didnt get to the top pads. Same with the resistor pads. We will be using black PCBs next time, and all our builds will be cleaned with alcahol before they ship out. My custom trannie is a little different from the one you posted Matt, but all does the same thing, spit out 250khz. I use a BC550 in this spot. The units are shipping for $1200 AUD. All the info is at our online shop www.pynamic.com.auOr flick us an email at admin@pynamic.com.au Hey, I don't want this to sound like I'm trying to be a jerk, but why do the joints in question look so boogery? I could understand the flux thing (though I'd have probably finished cleaning before snapping pics), but it does look like there are bigger problems. It's not the most Hi def pic but as I can see them, I wouldn't trust those for long at all. All that being said, I support small manufacturers and do hope you get the PCB deal sorted and sell a lot of units. It'd be lame of this community not to call out visible problems - I'd want the same done to me were my products the subject of this thread. |
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Post by srb on Jan 18, 2022 9:45:16 GMT -6
I mean, you never get a second chance to make a first impression.
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Post by jmoose on Jan 18, 2022 9:48:55 GMT -6
Flux is conductive... or at best a leaky insulator.
Demo vid isn't doing anything for me either.
I've used real Pyes... it's been some years but that doesn't match my memory.
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Post by Blackdawg on Jan 18, 2022 10:53:53 GMT -6
I think it sounds decent. The acoustic guitar part sounded awesome to me on limit.
And I've seen worse work on PCBs for things or just as questionable. I wouldn't get bent out of shape over it. Cool to see another unit out there.
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Post by robschnapf on Jan 19, 2022 8:55:11 GMT -6
I’m interested in the PWM form of compression.
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Post by sean on Jan 19, 2022 11:29:14 GMT -6
I’m interested in the PWM form of compression. I don’t have direct experience but maybe check out the Great River PWM501 I have my name down for a POM PYE…expected around May. Excited to put it through the paces |
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