Isolated 10Mhz distribution Board and Free PCB, Truepostion GPSDO  - Page 1
Forum section: electronics / general

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 20, 2018, 08:57:58 pm
content: After receiving free PCB from a nice forum Member. i have decided to give away few PCB i have that other may find useful.I made my self distribution board for My GPSDO, here the projecthttps://www.circuitvalley.com/2018/07/diy-isolated-10mhz-distribution-amp-gpsdo-rubidium-tcxo-reference.htmli have made two revision of board because oscillator i have is giving not very clean sine wave so i made second revision of the with more passes of LC filter.Board has PIC18F25K50 based USB to serial / GPSDO Controller firmware for TruePosition GPSDO.i have minimum 8 of V1.0 PCBand 2 or 3 V1.1bare PCBs to give away, to any one who ask for it , To have little confidence that Taker will have some use in mind. Taker will pay original shipping , it can be shipped in envelope For 0,85 EUR within Germany , and 1.50 EUR to any other country. i can ship worldwide with few exception.I do have few assembled V1.1 boards as well, if anybody interested for 75EUR. BOM cost of board is very high because transformer, Nice connectors and opamp. all the components only source from mouser or arrow, "no ebay part Guarantee".Here is Source, and BOM of V1.1 PCBhttps://github.com/circuitvalley/trueposition_gpsdo_usb_oled/tree/master/Hardware_Schematic_PCB/Isolated%20Distribution%20AmpI do have few extra TruePosition board assembled in Hammond enclosure with, Trimble GPS antenna,Power supply. For 185 EURHere is how assembled unit looks.All gonehttps://www.circuitvalley.com/2018/07/gpsdo-10mhz-standard-reference-clock-distribution-trueposition-gps-tcxo-ocxo.htmlPlease send a PM

author: zii
author_rank: Contributor
timestamp: July 20, 2018, 09:19:38 pm
content: Quote from: RoadRunner on July 20, 2018, 08:57:58 pmHi RoadRunner,I recently bought and tested a TruePosition GPSDO and actually was looking to build something along the lines of Your project.So I would be very happy to have one of Your v1.1 PCBs.Cheers,ZigmarsSent from my SM-G935F using Tapatalk

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 20, 2018, 09:21:26 pm
content: Quote from: zii on July 20, 2018, 09:19:38 pmPM Sent

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 20, 2018, 09:34:20 pm
content: Schematic of V1.0 PCB is attached, and you can find schematic of v1.1 PCB in my github , please refer to V1.1 For exact part number and value of each component.https://github.com/circuitvalley/trueposition_gpsdo_usb_oled/blob/master/Hardware_Schematic_PCB/Isolated%20Distribution%20Amp/Distribution_AMP_10Mhz.pdf

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 21, 2018, 10:34:08 am
content: V1.1 of the board all gone , only V1.0 remaining.

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 22, 2018, 10:24:35 pm
content: One Completely Assembled Unit sold, few still available.

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 25, 2018, 08:24:16 am
content: One more V1.0 PCB Gone , many still available.One more assembled unit and One Assembled Board sold few still available.

author: capt bullshot
author_rank: Super Contributor
timestamp: July 25, 2018, 07:16:59 pm
content: Quote from: RoadRunner on July 20, 2018, 08:57:58 pmReceived today one of these, it's really a nice unit. Does its job as I expected it to, and saved me a lot of effort to build my own box around a GPSDO unit.You did a good job Roadrunner, thanks!

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 28, 2018, 12:16:00 pm
content: Quote from: capt bullshot on July 25, 2018, 07:16:59 pmI am Glad you liked it.

author: RoadRunner
author_rank: Frequent Contributor
timestamp: July 29, 2018, 06:21:43 pm
content: One more Assembled Distribution board is sold. Now availability is very limited.

author: RoadRunner
author_rank: Frequent Contributor
timestamp: October 09, 2018, 12:20:43 pm
content: After few peopled asked i made second batch, Few more Assembled Boards available From second Batch , Slightly differnet PCB V1.2, 75 EUR, Plus shipping.Shipping to anywhere the world for 7 EUR and 5EUR for Deutschland.Few Free PCB from the PCB version 1.0 Are also available if some one needs

author: RoadRunner
author_rank: Frequent Contributor
timestamp: October 10, 2018, 09:04:27 pm
content: One sold,Two Sold, Few available.