bdrew Posted January 15, 2016 Report Share Posted January 15, 2016 If it's not too late, I'd like one AMP and one PSU please. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted January 15, 2016 Author Report Share Posted January 15, 2016 2 hours ago, bdrew said: If it's not too late, I'd like one AMP and one PSU please. Just in time. Added to the list. I will finalize the GB tomorrow and start collecting payments. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted January 16, 2016 Author Report Share Posted January 16, 2016 (edited) It's time to wrap up this GB. I like to start collecting payments from the participants so we can proceed to ordering the PCB. Below is the list of the participants, order quantity and total payment for boards in USD. For participants with continent US shipping address, please add $6.1 to your total which will cover the USPS Priority Mail shipping to you. For non-US shipping address, I'll need to let you know of the shipping charge individually when I receive the boards. My PayPal ID is [email protected]. Please use PayPal Gift for your payment and include your HeadCase ID and shipping address in your payment note. Soon as I receive all payments I will submit our order to PCBNET. All boards will be 2mm thick with 4 oz copper. SRX AMP ($25) Shunt PS ($20) Total MLA 2 2 $90.00 UFN 1 1 $45.00 blueman2 2 2 $90.00 gepardcv 1 1 $45.00 jose 1 1 $45.00 DefQon 1 1 $45.00 JimL 2 2 $90.00 sorenb 2 2 $90.00 eggill 1 1 $45.00 Samsie 1 1 $45.00 b0bb 1 1 $45.00 GeorgeP 1 2 $65.00 Rodeodave 1 1 $45.00 bdrew 1 1 $45.00 mwl168 2 2 $90.00 Edited February 5, 2016 by mwl168 1 Quote Link to comment Share on other sites More sharing options...
Blueman2 Posted January 16, 2016 Report Share Posted January 16, 2016 Sent. BTW, did you mean $6.10 for shipping costs? That is what I sent, but wanted to confirm. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted January 16, 2016 Author Report Share Posted January 16, 2016 7 minutes ago, Blueman2 said: Sent. BTW, did you mean $6.10 for shipping costs? That is what I sent, but wanted to confirm. Yes, if you have a continent US shipping address, the $6.1 covers the shipping from me to you. Shipping charge from PCBNET to me has already been figured in in the board cost. Quote Link to comment Share on other sites More sharing options...
Rodeodave Posted January 16, 2016 Report Share Posted January 16, 2016 Payment sent, international shipping charge outstanding. Thank you! Quote Link to comment Share on other sites More sharing options...
jose Posted January 16, 2016 Report Share Posted January 16, 2016 Payment sent. Thanks!! Quote Link to comment Share on other sites More sharing options...
JimL Posted January 16, 2016 Report Share Posted January 16, 2016 Payment sent. Thanks for organizing the group buy! Quote Link to comment Share on other sites More sharing options...
UFN Posted January 16, 2016 Report Share Posted January 16, 2016 Payment sent. //UFN Quote Link to comment Share on other sites More sharing options...
gepardcv Posted January 16, 2016 Report Share Posted January 16, 2016 Sent. Thanks! Quote Link to comment Share on other sites More sharing options...
JimL Posted January 16, 2016 Report Share Posted January 16, 2016 Update for those of you who will be buiding my shunt power supply. I changed the large C- resistor from 133k to 100k. This ensures that the input stage tail current sources will get enough current to run properly. Quote Link to comment Share on other sites More sharing options...
MLA Posted January 16, 2016 Report Share Posted January 16, 2016 Payment sent. Thanks! Quote Link to comment Share on other sites More sharing options...
bdrew Posted January 16, 2016 Report Share Posted January 16, 2016 Payment sent. Quote Link to comment Share on other sites More sharing options...
b0bb Posted January 16, 2016 Report Share Posted January 16, 2016 Payment sent. Thanks for organizing this. Quote Link to comment Share on other sites More sharing options...
eggil Posted January 17, 2016 Report Share Posted January 17, 2016 payment sent. Thank You! Quote Link to comment Share on other sites More sharing options...
Blueman2 Posted January 20, 2016 Report Share Posted January 20, 2016 mwl168, How is the progress going on getting funds collected and boards ordered? Let me know if there is anything I can do to help. Especially if someone drops out, I am willing to take up the slack until a buyer comes in down the road. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted January 20, 2016 Author Report Share Posted January 20, 2016 Thanks for offering to help! I just confirmed with two GB participants of their orders and, 3 minutes ago, submitted our order to PCBNET 1 Quote Link to comment Share on other sites More sharing options...
Blueman2 Posted January 20, 2016 Report Share Posted January 20, 2016 What is their typical turn around time? My 507's just arrived today and I can't wait to start the build!!! Quote Link to comment Share on other sites More sharing options...
mwl168 Posted January 22, 2016 Author Report Share Posted January 22, 2016 Received confirmation for our order from PCBNet today. Boards will be shipped from factory on or before Feb. 5. Quote Link to comment Share on other sites More sharing options...
Kerry Posted January 22, 2016 Report Share Posted January 22, 2016 (edited) I just ordered some boards from them last Sunday and they arrived today. They were a mix of 1oz and 2oz copper. Amazing Sorry, different supplier. I read it too quickly. Good luck with boards and builds. Edited January 22, 2016 by Kerry Quote Link to comment Share on other sites More sharing options...
mwl168 Posted February 5, 2016 Author Report Share Posted February 5, 2016 (edited) Got home very late tonight to find the PCBNet package sitting in the foyer. Delayed one day by the snow storm that hit upper Midwest Tuesday. Quick visual inspection of boards shows typical quality fabrication as can be expected from PCBNet. These 2mm, 4oz boards have a hefty feel to it. Will post better quality picture this weekend under daylight. Shipping will start next week. Edited February 5, 2016 by mwl168 Quote Link to comment Share on other sites More sharing options...
DefQon Posted February 5, 2016 Report Share Posted February 5, 2016 Shit, haven't check on this thread in a while was wondering when you were going to send me the payment required details. Will make payment within a day. Quote Link to comment Share on other sites More sharing options...
MLA Posted February 5, 2016 Report Share Posted February 5, 2016 Looking good! Quote Link to comment Share on other sites More sharing options...
JimL Posted February 5, 2016 Report Share Posted February 5, 2016 BTW, MLA noted a "problem" on his original board, which is that the input stage plate resistors are specified as 300k, which is what the original SRX has. With that value, you have to set the input tail current source to about 1.1 mA to get the input stage plate voltage to 1/2 way between ground and B+. I changed the input plate resistors to 250k - for that value, the input tail current source should run about 1.3 mA. Either value is acceptable, just that you have to adjust the current source to give the proper plate voltage on the upper tubes, which is 1/2 way between ground and B+, or 160 volts if you're running a +/- 320 volt PS. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted February 6, 2016 Author Report Share Posted February 6, 2016 (edited) Better quality photos of the boards as promised. Edited February 6, 2016 by mwl168 Quote Link to comment Share on other sites More sharing options...
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