January 23, 20179 yr Hello All... Since there were a bunch of requests for more GRLV boards I'll do another round. I've also added the boards listed below that are in demand. Also, as a side note if you're looking for boards from my last GB I have one set of Dynahi boards, four or five Dynalo Mini, and a few volume pot boards left. Send me a message if you need any of those. Sign up Sheet: https://docs.google.com/spreadsheets/d/1Z1L3MQuuY4ZTUyPQb1qBmVJp8MtC7qEzBUui3z5dFrQ/edit?usp=sharing Balanced\Unbalanced board (both smt and through hole) Through Hole http://gilmore.chem.northwestern.edu/boards/diffinput3.zip SMT http://gilmore.chem.northwestern.edu/boards/diffinput3smtd.zip Diamond Buffer (both smt and through hole) Through Hole http://gilmore.chem.northwestern.edu/boards/dbuf1.zip SMT http://gilmore.chem.northwestern.edu/boards/dbuf2.zip Balanced Source Switch (Microprocessor controlled) http://gilmore.chem.northwestern.edu/boards/baseboardbal3.zip Dynalo Mini (with TKD pot) Dynalo http://gilmore.chem.northwestern.edu/boards/kgdynalobal9.zip Current Feedback Amp (Electrostatic) Version 2 http://gilmore.chem.northwestern.edu/boards/cfaelectrostat2.zip BH Ultramini Version 4 http://gilmore.chem.northwestern.edu/boards/kgbhultraminipsv4.zip Golden Reference Low Voltage Version 6 combined http://gilmore.chem.northwestern.edu/boards/goldenreference6.zip If you need 4 gang volume pots for these amp boards see cspirou's TKD group buy here: https://docs.google.com/spreadsheets/d/1qq-ZR84X_Ik1KyHVINC6cdwdEbZ-HRh2Wf2VVBJZBkw/edit#gid=1096418962 Edited March 2, 20179 yr by sbelyo
January 23, 20179 yr Thanks for doing another round, I plan on getting at least 4 x GRLV6 combined boards. Edited January 23, 20179 yr by kpeezy
January 24, 20179 yr You must be a glutton for punishment Steve I'd be in for some version of the ubal board, maybe others.
January 24, 20179 yr +1. The effort is highly appreciated! I'd be in for the SMD ubal->bal board and a pile of diamond buffers..
January 24, 20179 yr Author 13 hours ago, Pars said: You must be a glutton for punishment Steve I'd be in for some version of the ubal board, maybe others. Yeah, I definitely am a glutton for punishment I'm interested in that board as well
January 25, 20179 yr Thanks for the GB efforts. I am interested in GRLV, DYNALO and DYNALO_MINIboards.PM sent. BR Alex
January 25, 20179 yr no need to post the attenuator board. I got one from sorenb. I believe he has more if anyone else needs any. Although I wouldn't mind if you can get this controller board. Edited January 25, 20179 yr by cspirou
January 25, 20179 yr Author noted... I'm hoping to open up the spreadsheet tonight. Been a little busy and it's my son's 17th birthday today (time flies)
January 26, 20179 yr Author Okie Dokie... The sheet is open https://docs.google.com/spreadsheets/d/1Z1L3MQuuY4ZTUyPQb1qBmVJp8MtC7qEzBUui3z5dFrQ/edit?usp=sharing So far we have the GRLV combined and split, the Unbalanced\Balanced board (through hole), the diamond buffer (through hole), the dynalo, and dynalo mini with TKD pot. Of course I will confirm the boards are ok and in final versions. I would love to build the CFA so I will check to see if it's possible to add that board as well.
January 26, 20179 yr Were you going to do the SMD Ubal board? That's the one I was interested in. Also, I assume the diamond buffer boards are single, so you would need 2 of these for each Ubal board? Thanks!
January 26, 20179 yr Add my boards. A friend of me is interested on SMD boards but depend on price. Can I increase my order when we know the price? Add Edited January 27, 20179 yr by jose
January 26, 20179 yr posted final smt version of the ubal to bal board. the smt boards should be cheap because they are tiny, ubal board is 2.42 x 2.12 and the diamond buffer is 1.46 x .8 I would like 4 of the ubal boards, and 8 of the diamond buffer boards please
January 27, 20179 yr Author 16 hours ago, kevin gilmore said: posted final smt version of the ubal to bal board. the smt boards should be cheap because they are tiny, ubal board is 2.42 x 2.12 and the diamond buffer is 1.46 x .8 I would like 4 of the ubal boards, and 8 of the diamond buffer boards please You got it... For the Current Feedback amp, is that board still being tweaked?
January 27, 20179 yr i have not touched that one in a while. don't see any reason to, i like it the way it is
January 27, 20179 yr Author I'll add it then. congo5 says it works and sounds nice. This is the gerber http://gilmore.chem.northwestern.edu/boards/cfaelectrostat2.zip This power supply was reccomended by congo5, any objections? http://gilmore.chem.northwestern.edu/boards/kgbhultraminipsv4.zip
January 27, 20179 yr the GRHV is the best, I used the BHultramini because: It was already built, and its the same size as one of the GRLV single "fat" boards so its smaller, cheaper, and works for 400v.
January 27, 20179 yr seems like bh mini is ideal for the cfa, simply for the sake of cost effectiveness
January 27, 20179 yr it was for me, keeping size down and the cost to try it. many choices here, how big do you want it to be? how much are you willing to spend? If you really like it then try the better supply's, fancy Cap's, Or Giant heart stopping defibrillator Caps, on and on...
January 27, 20179 yr remember that there is both a dynamic and electrostatic current feedback amp. using the bh power supply on the dynamic amp is going to result in much magic smoke.
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