O2 amp Australian parts GB

[fordgtlover]

All parts checked and measure fine.
I noticed the following substitutions:
R9 = 40.2k instead of 33k
C6, C7 = 0.22uF MKT/MKS instead of 1.0uF MLC
These look correct according to the Mouser order analysis spreadsheet.

R9 & R25 were a specification change in November.

C6 & C7 appear to have been an optional change prior to the November BOM update. RS comments that it appears to be a conservative vendor suggestion.

Mine is working fine with the previously specified parts.

 

[schlagzeuger]

Ah, right. I see it now re-reading the O2 article.

It might be a bit late, but I feel like putting one together tonight

 

[dontdiewondering]

Do it!

 

[fordgtlover]

^
^

Go for it... We'll wait

 

[schlagzeuger]

All done. It sounds great so far, but it's just running off my MacBook's HP out for now.
It's plenty loud enough with AD2000s, 9 o'clock is heaps on low gain I'll need to find an adapter to try with some higher impedance headphones.

The amp:

Testing:

3mv DC offset:

 

[fordgtlover]

Nice

 

[MIL SPEC]

What cro is that?? Or dpo to be exact..

 

[schlagzeuger]

It's a DSO Nano V2.
Pretty basic thing with not much bandwidth but useful for checking if something's working or not.

 

[sashaw]

Looks good. Can't wait to get my hand on mine. Front panel, where are the front panel. Could someone in AU contact BF to check, please? Thanks

 

[dontdiewondering]

I just got this text 5 minutes ago:
"Yes the panels are here, printing envelopes after work today."
So he will post them out tomorrow for those people who have already got their kit and once I get the rest I'll be able to post the I ternational orders (insideouts was posted yesterday).
Getting closer!

 

[sashaw]

Thanks so much DDW

 

[safetydank]

Credit where it's due to BF, the components were packaged and labelled well (missing pieces notwithstanding).

I hope he can sort out the panels and powerpack refunds so this group buy ends on a positive note.

 

[hochopeper]

Thanks again to DDW!

Agree that BlueFusion has done a great job on packaging / labelling! With better communication perhaps much of the angst/anxiety could have been avoided. BlueFusion certainly could have taken a more proactive approach to managing expectations. Rather than always reactive.

I hope we can hear from BlueFusion soon and resolve the outstanding money issues. My vote goes for BlueFusion resolving the postage costs with ddw prior to any of the other finance problems.

 

[coolhead]

DDW, I can wait until the panel is ready and send the parcel 1 off. Just let me know how much to pay you.

 

[Sqveak]

Just realised that I'm also missing one of the blue jacks that I should have.

So far I'm missing 8 opamps, one jack, and... hopefully no more than that.

I'll be counting everything out into 3 separate kits tomorrow afternoon so I'll find any other omissions then.

Did anyone receive my opamps as extras? or a spare jack maybe?

 

[fordgtlover]

Sqveak, I've got some spare jacks I could send through, but no spare opamps

 

[dontdiewondering]

Let the horse trading with extras begin!!!

At least there are some working amps now. I agree with BF making an appearance on the forum and finishing the GB on a good note. There is no denying that he had his heart in the right place and packed things well, a bit more communication and "Ive taken off more than I can chew and need some help" would not have gone astray.

What I have paid for freight:
4 x 500g express post @ $9.20 = $36.80
8 x 3kg express post @ $12.55 = $100.40
8 x 3kg click and send @ $9.35 = $74.80
Inside out's order to NZ $9.65

Progressive Total = $221.65

Still to post six international orders, one local.

I have paid for all this myself and I'm comfortable underwriting the freight and will sort it out with BF once we get to the bottom of what's happened with the money.

From what I understand, and if I'm wrong can someone please correct me but there is an allowance of $25Au per international order. Once I get the front panels from BF I will get it in the post asap noting that I will be away for a week over christmas/new years - sorry international guys but family comes first and I was hoping to have this all sorted, but I will do my best (I have a cunning plan to for someone to check my mail and bring all the panels up the river and post them from there, but it relies on BF getting them in the post tomorrow).

Questions?

 

[qusp]

well if BF doesnt manage to sort this out satisfactorily, put me down for a 25 dollar donation to help even things up. I'm sure regardless of the note BF finishes on, nobody wants it to finish on the discordant note of you being out of pocket, considering the effort and gumption of your undertaking to set this right for everyone. The other slots to tally up will be filled pretty quickly I imagine

 

[schlagzeuger]

The other slots to tally up will be filled pretty quickly I imagine

Yep, I'll chip in as well.

Hopefully we can get some more financial information from BF about where funds were allocated; there should be about $8 left over from my order since I had one plug pack ordered and instead got 2 extra batteries. I imagine there are other discrepancies with respect to the plug pack order and what has/hasn't been refunded.

 

[hochopeper]

I'll be in for some covering your costs if BF doesn't come though too!


My board is stuffed full of components now too. Something screwy going on with my voltage regs though, only getting +/- 6.8V out of each. Will have to look into that when I get a bit of free time over next week or so. Hopefully just something simple/stupid.