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The YARRA Preamplifier/HPA for Melbourne DB Group Buy
The YARRA Preamplifier/HPA for Melbourne DB Group Buy
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Old 17th March 2019, 12:54 AM   #121
xrk971 is offline xrk971  United States
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The YARRA Preamplifier/HPA for Melbourne DB Group Buy
Hi Gary,
This is why I am making a verification build, to get the detailed BOM straightened out, in addition to confirming that the layout works. So far the PSU has been verified to be working on one channel using an external 15v trafo. We will get the complete BOM soon. However no plans on complete kits. They are simply too time consuming to do. It’s hard enough Just to provide the “shopping cart” ready to go.


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Old 17th March 2019, 01:59 AM   #122
gary s is offline gary s  Australia
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That is fine by me X, as long as there is a complete BOM of all mechanical parts and electronic parts for members to put together this masterpiece of a design, then there should not be too many questions as forum members look to source parts and complete the build.
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Old 17th March 2019, 03:01 AM   #123
xrk971 is offline xrk971  United States
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The YARRA Preamplifier/HPA for Melbourne DB Group Buy
Hi Gary,
This is DIY after all, and the BOM and shopping cart will contain all the major parts to get the amp working. It may not be comprehensively complete like a Heathkit or DIYA Store Kit for beginners, but the major stuff will be there. However, rest assured that all questions on this thread will get answered. Hugh, JP, and myself will try our best to help you get a working amp that sounds like no other. The mechanical case-work is always a DIY PITA. I have 3 dozen amps and only 3 are encased, and only 1 nicely done. So that sort of tells you where my level of detail is when it comes to the last nut and bolt being specified in a BOM. This custom case business and shaft extenders are all new to me. I’m sure JP has a part number for the shaft extender. The generation of a shopping cart on Mouser and Digikey etc is a major undertaking. Probably 6-8hrs of work on Vunce’s part. It may not be 100% complete. You will have to use it as a starting point and compare to the schematic. The parts for the case we will figure out when we get there.
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Last edited by xrk971; 17th March 2019 at 03:04 AM.
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Old 17th March 2019, 05:11 AM   #124
gary s is offline gary s  Australia
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Thanks X, all will be revealed I am sure as work progresses by yourself and JPS on this fine project.
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Old 18th March 2019, 05:28 AM   #125
JPS64 is offline JPS64  Germany
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The YARRA Preamplifier/HPA for Melbourne DB Group Buy
please be patient, mechanical part list coming; never seen DIY document quality and design level!
We‘re designing today front plate for milling and rear plate for printing.

JP
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Old 18th March 2019, 01:42 PM   #126
BigE is offline BigE  Canada
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You guys are amazing! Thank you for this incredible effort.
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