Antichambre Posted October 3, 2016 Author Report Share Posted October 3, 2016 (edited) Transistors and crystal are not rare parts, transistors are common 2N3906, crystal is used commonly in video analog circuit. For the crystal it depends on your casing, if you want to use the cartridge format, 'low profile' is required, you will have to use this package:HC-49/US BR Antichambre Edited October 3, 2016 by Antichambre Quote Link to comment Share on other sites More sharing options...
yogi Posted October 3, 2016 Report Share Posted October 3, 2016 Hi Antichambre, looking over the schema and had a parts question. The serial EEPROMS are 256x8 devices, is there any advantage to using a larger device such as the ' MB standard' 32Kx8 or 64Kx8 mems. Yogi Quote Link to comment Share on other sites More sharing options...
Antichambre Posted October 3, 2016 Author Report Share Posted October 3, 2016 Hi Yogi, Good to get someone who check my work, It's a mistake. I think I only have got this one in my eagle library, I placed it without changing its value. And I exported the error in the BOM too. Then YES! there's a big advantage to use the 'MB Standard' Will correct Now. Thank you... Antichambre Quote Link to comment Share on other sites More sharing options...
Antichambre Posted October 3, 2016 Author Report Share Posted October 3, 2016 The reference is fine in the Mouser BOM, checked. Will change it in the schematic... thx Quote Link to comment Share on other sites More sharing options...
yogi Posted October 3, 2016 Report Share Posted October 3, 2016 Oh very good :) we're all Human. Just contemplating the use of removable bankstick. Is there support for more than two? Yogi Quote Link to comment Share on other sites More sharing options...
Antichambre Posted October 3, 2016 Author Report Share Posted October 3, 2016 (edited) No , bankstick are internal like in the SammichSID, if I remember well it's 4 bank of 128 presets for each EEPROM then 8 banks. But you can easily load and backup it from and to file with the MaxMsp Manager... ...And share it with the community. Edited October 3, 2016 by Antichambre Quote Link to comment Share on other sites More sharing options...
yogi Posted October 3, 2016 Report Share Posted October 3, 2016 1024 presets, OK! AND support for dumping via Manager Will have to install the Max runtime here and play a bit with the Manager. Just this afternoon DLed the older runtime, 6.1.10, for this XP machine. Yogi Quote Link to comment Share on other sites More sharing options...
yogi Posted October 3, 2016 Report Share Posted October 3, 2016 Well... will have to ask one more question. Does the Manager work, knobs move and such, without a MB TIA connected? I ended up having to install 5.1.9 runtime, which is Very old, to install on this Very old XP box. The Manager opens OK (I think, the graphics look correct), but most controls are grayed out. When I 'play' the keyboard it sends midi Note On/Off messages so that's hopeful. And it detects all the midi interfaces connected. Also the startup log shows a lot of errors, so I'm afraid MaxMSP 5 is just too old (and this PC also). Seems like time to upgrade Yogi Quote Link to comment Share on other sites More sharing options...
Antichambre Posted October 4, 2016 Author Report Share Posted October 4, 2016 (edited) No it seems to be good, manager scans all your port at startup, it tries to find a TIA with ID=0. All is gray because it didn't find anything. No MB-TIA connected(still in red). You know that it's not the TIA chip which communicate with the manager, then if you've got a CORE push the FW inside, and try again. It must work with the internal preset(patch) without BS. Don't kill your XP if you like it, I kept a 98 SE during a long time too, I undersand. My PC runs under 7 no 8 no 10 ;) Edited October 4, 2016 by Antichambre Quote Link to comment Share on other sites More sharing options...
yogi Posted October 4, 2016 Report Share Posted October 4, 2016 Very good to hear, I was hoping the Manager works this way. Will setup a foo 'MB TIA' core If I can hang on to this PC a little longer it would be good. It's a little like an old house, too small and the roof leaks sometimes but the thought of moving is worse. But for day to day use the issues stack up. BTW, still have a W98 box, but it's just for Adlib tracking. Has a YMF719 OPL3 on the mobo; unique old Sony Vaio desktop. Purple case and very non-box shaped; even have the matching Purple KB. So OK, I have a problem 'letting go' Yogi Quote Link to comment Share on other sites More sharing options...
yogi Posted October 12, 2016 Report Share Posted October 12, 2016 A little heads up, just received my parts order, based on the TIA BOM. The resisters are a little oversized, about 3-5mm longer than the average 1/4w package(and wider by about 2mm). It shouldn't be a issue for the board footprints, being vertical mounted, but may be too tall (?) without needing to 'lean' the resistor some. Anyway, looking forward to the boards Yogi Quote Link to comment Share on other sites More sharing options...
Antichambre Posted October 13, 2016 Author Report Share Posted October 13, 2016 9 hours ago, yogi said: The resisters are a little oversized, about 3-5mm longer than the average 1/4w package(and wider by about 2mm). Hi Yogi, is this error in the mouser BOM I shared? Antichambre Quote Link to comment Share on other sites More sharing options...
yogi Posted October 13, 2016 Report Share Posted October 13, 2016 Hi Antichambre, not so much an error, because the values and power ratings are correct. It's just the package style for the Vishay Dale RN60 series, CMF 20 Mil spec at 9.5mm x 3.5mm. The RL07 series is 6mm x 2mm, which is what we normally see size wise for a 1/4w. The RNs will work but will be tighter in the case. If you like I can go through the BOM and select smaller Rs, preferer Vishay or price (as other brands can be 1/2 the cost of Vishay)? Yogi Quote Link to comment Share on other sites More sharing options...
Antichambre Posted October 13, 2016 Author Report Share Posted October 13, 2016 Ohhh sorry :/ Of course you can, if you've got the time for that... If not I will do it before putting somebody else in the same mistake. And you can change the brand it doesn't matter. Thank you. Antichambre Quote Link to comment Share on other sites More sharing options...
yogi Posted October 13, 2016 Report Share Posted October 13, 2016 (edited) Good deal, almost done. All 1% 100ppm and highest 'on hand' inventory (at least for US Mouser). I'll send you new BOM :) Yogi Done, link sent :) Edited October 13, 2016 by yogi Quote Link to comment Share on other sites More sharing options...
dnode Posted November 17, 2016 Report Share Posted November 17, 2016 Just signed up for the bulk order: 1xPCB, 1xPIC, 1xTIA Great project, big compliments! Quote Link to comment Share on other sites More sharing options...
Antichambre Posted November 18, 2016 Author Report Share Posted November 18, 2016 Hi dnode, Ok one more! Thank you. Antichambre Quote Link to comment Share on other sites More sharing options...
ErMangaver Posted November 20, 2016 Report Share Posted November 20, 2016 Very nice, I'd love to play with one so signed myself for the bulk order. Cheers Luca Quote Link to comment Share on other sites More sharing options...
Antichambre Posted November 25, 2016 Author Report Share Posted November 25, 2016 @ErMangaver Welcome! Quote Link to comment Share on other sites More sharing options...
Antichambre Posted December 15, 2016 Author Report Share Posted December 15, 2016 Hi everybody, I made one to check before closing the bulk. - I've got some modifications to do in the Mouser BOM. - Some adjustment for the drilling cart. - Add a v2 version in firmware because TIA data register pinout differs from v1. - Change on the silkscreen for Audio Out Config Legend(to be seen with any IC socket). That's all!And It rocks!!! No more noise and crossover, it sounds clear now ;)I think I will close the bulk in January. Then... More interested people??? 1 Quote Link to comment Share on other sites More sharing options...
yogi Posted December 15, 2016 Report Share Posted December 15, 2016 Color me excited :) Yogi 1 Quote Link to comment Share on other sites More sharing options...
mrspring Posted December 19, 2016 Report Share Posted December 19, 2016 wow.. it looks awesum :) and no crosstalk between the channels now? outstanding :) Quote Link to comment Share on other sites More sharing options...
Antichambre Posted December 19, 2016 Author Report Share Posted December 19, 2016 Hi Mr Spring ;) On the first version, because of the position of the TIA on the board, I made the mistake to supply everything else before it, this caused a crosstalk of midi (audible freqs) to the audio output. Now TIA is powered separately. Two different circuit from regulator output, this is the dash lines on the board ;) Then, there's no more noise. I haven't got any precise audio lab tool for noise floor measure but it's less than -70dB, which is already good enough. BR Quote Link to comment Share on other sites More sharing options...
Antichambre Posted December 20, 2016 Author Report Share Posted December 20, 2016 A quick track, recorded on the fly. No post mix, no cut. The new Midibox TIA + TR909 drum I just play with EQ and reverb on the 01v96. I only use the "Bass" and "Buzz-Low" waveform of the TIA. Good Listening! 1 Quote Link to comment Share on other sites More sharing options...
yogi Posted December 20, 2016 Report Share Posted December 20, 2016 (edited) Oh that sounds great! The TIA makes a great Bass/Rhythm synth. Gritty and dirty in a very good way. Yogi Edited December 20, 2016 by yogi 1 Quote Link to comment Share on other sites More sharing options...
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