It will work fine without the Yarra (but kind of messy), and you will need a clean dual rail PSU. 18v should be ok for a HPA - you will need to adjust the resistors on the CCS to get the current up to, say 80mA to 100mA for driving lower impedance phones. I used mine with only 42mA bias and they worked surprisningly well on 55ohm headphones.
Maybe just get a set of Melbournes to play with? They are TH.
Yep that sounds good - which resistors would need changing?
I'll send you a PM about board order instead of clogging up this thread
Hello builders,
here link for eDrawing file download (viewer tool is free):
YARRA PREAMPLIFIER_GX383.EASM - Google Drive
JP
here link for eDrawing file download (viewer tool is free):
YARRA PREAMPLIFIER_GX383.EASM - Google Drive
JP
Hello All,
I just looked at the Mouser Yarra cart and it’s missing a few items that were originally there. I don’t know how that could happen but, hold off on placing your order until I confirm. Sorry for the inconvenience.
Vunce
I just looked at the Mouser Yarra cart and it’s missing a few items that were originally there. I don’t know how that could happen but, hold off on placing your order until I confirm. Sorry for the inconvenience.
Vunce
For the C155,156,157,158,175,176,177,178 instead the 4700uf/35v can i use
(647-UKT1V682MRD) 6800uf/35v ?
(647-UKT1V682MRD) 6800uf/35v ?
The Yarra boards arrived yesterday. They look great and this has got to be the heaviest shipment I have ever received in PCBs. This stack of 30 boards weighs 15lbs - a truly magnificent bruiser of a PCB. Superb layout by JPS64 as usual. I also ordered some extra input panel PCBs with a modified pin geometry for the rotary switch. I will include those at no cost and they will give you a spare input panel with holes for both a Lorlin and a C&K rotary switch.
Attachments
Hi x, looking good, I assume you will be sending out Paypal invoices for these as well very soon, looking forward to starting that build.
Do you know where JPS is up to with regards pricing on the enclosure?
regards,
Gary..
Do you know where JPS is up to with regards pricing on the enclosure?
regards,
Gary..
Have the power entry parts on the BOM dissappeared again, I just made my order and once purchaced I checked the listing and there were no power entry parts.
Hi Gary,
Sorry I did not know you had yet been invoiced for the Yarra PCB. Will send that out.
I don’t know what is happening with the custom case GB but we have probably 20 interested people. Will have to wait to hear from JPS64.
Sorry I did not know you had yet been invoiced for the Yarra PCB. Will send that out.
I don’t know what is happening with the custom case GB but we have probably 20 interested people. Will have to wait to hear from JPS64.
You are correct Batty!!
I just checked and they are missing again, also the whole Yarra cart has vanished from my Mouser account!
This is the second time this has happened and it’s the only saved project affected. I’m a bit baffled by this??????
I just checked and they are missing again, also the whole Yarra cart has vanished from my Mouser account!
This is the second time this has happened and it’s the only saved project affected. I’m a bit baffled by this??????
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