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The YARRA Preamplifier/HPA for Melbourne DB Group Buy

Founder of XSA-Labs
Joined 2012
Paid Member
GB Status Uodate

Vunce - 1 board set - USA
zman01- 1 board set - USA
twitchie- 1 board set - Canada
BRN - 1 board set - USA
Roundtoit - 1 board set - USA
Russellc- one board set. USA
mordikai- 1 board set - USA
bologna1 - 1 board set - USA
TunstenAudio - 1 board set - USA
Kokanee - 4 (or is it 2?) board sets - CAN
 
Last edited:
Member
Joined 2011
Paid Member
Surprisingly, my IEEE evaluations from the grad students I taught were overwhelmingly positive. But the material was different, there was a hardcopy textbook, and I presented about 20 lectures in addition to preparing homework assignments and written exams. That may not be the kind of teaching you are referring to.
 
GB Update:

Vunce - 1 board set - USA
zman01- 1 board set - USA
twitchie- 1 board set - Canada
BRN - 1 board set - USA
Roundtoit - 1 board set - USA
Russellc- one board set. USA
mordikai- 1 board set - USA
bologna1 - 1 board set - USA
TunstenAudio - 1 board set - USA
Kokanee - 4 (or is it 2?) board sets - CAN
Meanie - 1 board set - Singapore
 
GB update

Vunce - 1 board set - USA
zman01- 1 board set - USA
twitchie- 1 board set - Canada
BRN - 1 board set - USA
Roundtoit - 1 board set - USA
Russellc- one board set. USA
mordikai- 1 board set - USA
bologna1 - 1 board set - USA
TunstenAudio - 1 board set - USA
Kokanee - 4 (or is it 2?) board sets - CAN
Meanie - 1 board set - Singapore
gary s - 1 board set - Australia
 
Last edited:
Founder of XSA-Labs
Joined 2012
Paid Member
Hi Gary S,

A Yarra board includes all 6 sub-boards (PSU, main amp, input selector, and 3x volume pot boards). Someone added the word "board set" which just refers to the 6.

However, it does not include the Melbourne DB. Should you want one, I can add them to your order for no extra cost to shipping at the usual Melbourne GB price of $10ea. Just indicate number of Mebourne DB's you would like.

For example:

DIYA_JohnDoe - 1 Yarra, 2 Melbourne - AUS

I hope that clarifies things.

Thanks,
X
 
GB Update

Vunce - 1 board set - USA
zman01- 1 board set - USA
twitchie- 1 board set - Canada
BRN - 1 board set - USA
Roundtoit - 1 board set - USA
Russellc- one board set. USA
mordikai- 1 board set - USA
bologna1 - 1 board set - USA
TunstenAudio - 1 board set - USA
Kokanee - 4 (or is it 2?) board sets - CAN
Meanie - 1 board set - Singapore
gary s - 1 Yarra - 2 Melbourne - Australia
 
Hello guys,


big diode added; option for standard donut; option for low cost RCA connector (Product – Lumberg).



JP
 

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Hi Hugh,


thank you for this hearten words, but only give my best for this nice community.



Builders find printed board assembly dimensions.


Don´t forget, no wires using Micro-maTch cable assemblies (available at Mouser): Micro-maTch in Cable Assemblies | TE Connectivity



SketchUp files (using HIFI2000 1U enclosure) are too big (66MB) and I don´t know how to send it?!


JP
 

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Thank you @zman01.


First the bottom plate HIFI2000 Galaxy GX343 (10mm front; 2mm panels).
Then power supply part (using 5mm spacer and don´t forget to foil isolate bottom panel from the main power section).
Then preamplifier part.
Connect both together using Micro-maTch cable assembly.
Mounting potentiometer board of your choice.
Mounting side panels.

Rear panel.
IO board and connect potentiometer board using Micro-maTch cable assembly.
Mounting axis and knobs.
Finishing with top plate.
Enjoy.


JP
 

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