judo
-
Posts
134 -
Joined
-
Last visited
Content Type
Profiles
Forums
Events
Posts posted by judo
-
-
I mourn for the post(wo)man but happy for you.🙂
-
1
-
-
On 5/20/2020 at 9:55 PM, mwl168 said:
The latest FedEx tracking shows our boards are "in transit" in JapanÂ
I don't know if to laugh or cry!Â
About FedEx: I told earlier FedEx here is nice. Ordered from Mouser on Monday 14:30 CET and got the package now 12:30 CET Wednesday from Texas. As you know the mini T2, etc. boards have been coming for more than two months (by USPS) 😕
-
One month is quickÂ
I thought my package was lying somewhere near but it is more probable now the delay is between US and EU so there is hope for you Jose, I think.
-
My boards have arrived finally! More than two months from the US is a shipping time record. Thanks Michael!
-
1 hour ago, Discom said:
I've not received them yet either. I suspect they are stuck in customs. Either that or the local post dropped them off at a pickup point, forgot to tell me about it, and happily shipped them back after a week, which has happened before. Or they've disappeared...
Yes, these are the options about here(Hungary). Not usual to lose something but the times are not usual too.
Â
12 minutes ago, MLA said:Mine just cleared customs...
So there was some delay we will see. Thanks for the answers!
-
Anybody else who have not received the boards yet?
-
One of my first Fedex shipping came from Viet Nam and went back and forth to China two times and after that to a lots of arabian country I was amazed I thought this was the Fedex way. After that something little from Amb went back and forth on the Los Angeles San Francisco line for a month but that was UPS so this is not exlusively Fedex method. Viet Nam would be the connecton ?
 Here Fedex is nice they bring my Mouser orders.
-
-
1 minute ago, Pars said:
Interesting. Where you have the temp probe was always the hottest area when I was using an IR gun. Maybe a bit further left. Any reason you didn't populate the rail caps (above the right heatsink)?
a long story
They were popped and I always forget to order them.
-
To the heat issue:
I have a "standard" mini from the first group buys. Case, the unfortunate 3 oz board, 402 led resistor, 255 bias resistor, 15 mA bias. I used it with offboard regulators and without the top cover mainly for a time. Now I squeezed in the onboard regs second times a bit better with the same heatsinks but only with open lid. I would not like to reduce the bias so I experimented with @Skooby's resolution(see in this thread) a little. In my version there is almost 10 mm the distance from the transistors's heatsinks to the lid so I made a "heat bridge" from two 5 mm thick aluminium pieces as you see in the picture. The result is more than I hoped. Measuring the temp on the heatsink hotter side:Â with the top cover 85-86C; without the cover 70C. With the "heat bridge" and the cover 63C. The absolute temperature is depends on the ambient, the music, the headphones a bit but the more than 20C gain is stable. This was a surprise to me, the mod is easy maybe helps somebody. You can secure it with screws, widen it etc.. Maybe later. It is stabil mechanically I am happy with it as is. Thanks for Skooby!The temperatures were measured after cc. 90-120 minutes when they were stable.
-
1
-
-
I did not see Amb's board but some of the available little tps boards have enable pin. The fix can use them(or the mini GRLVs ?
) too paralell with the onboard regs maybe . You can replace the Amb's and use them for other purpose. Brainstorming for the cost of somebody else I know.
Â
-
Payment sent. Thanks!
-
2 hours ago, mwl168 said:
Table updated. Please do double check and let me know if I have made mistakes....
This:
        "Dear Michael, increase my GRLV78 XX, GRLV79xx numbers to 3 each from 2, please! Thanks!!"
Â
Â
-
Dear Michael, increase my GRLV78 XX, GRLV79xx numbers to 3 each from 2, please! Thanks!!, no more changes.
Â
-
Kerry, the GRLV78/79xx can be usable in your dynalo mini ?
-
I would like bare PCBs too. May I double the ordered numbers except the T2 boards? Thanks!
-
Preassembly less fun. I have bought a Quick 861DW hot air station and I would like to play with it.😀
-
Thanks! For the answer and for the much work. You know the the TPS7As were a real challenge with the mini dynalo, Kerry's (and Kevin Gilmore) design. So I thought there were some experiences.
-
That HN4A51J compared with the TPS7A... regulators seems easy. Maybe I am not right I did not do much similar. Is this the hardest solderable part ? The size is the main problem or stg else?
-
If it was not too late:
2x GRHVxxx
1x GRLV79xx
1x GRLV78xx
1x Main Board1x miniT2
-
Not so absurd. I have two old sr-003s and nowadays I am using them for movies with a carbon. They are not perfect I am thinking about refurbish them. Cleaning, rebias, repair the contacts etc. Any experience ?
-
2 hours ago, Tachikoma said:
A KSE1500 desktop amp would be greatÂ
Â
Change the bias in any Stax ore Gilmore is easy what has to be done yet? Limit the voltage swing?
Ooh, sorry... A joke
-
1 hour ago, Tachikoma said:
.What electrolytic caps?
In @wink's headamp. Or in mine was it a joke ??
Â
-
You are right but are there good enough closed headphones at all? I have never heard the 4070 but they say it is not the best stax. Maybe depends on the music you usually listen too.
Â
I thought my package was lying somewhere near but it is more probable now the delay is between US and EU so there is hope for you Jose, I think.
Â
Kerry Design mini GRHV\GRLV and JoaMat mini T2 Group Buy
in Do It Yourself
Posted · Edited by judo
This works, the original links at the first page not. "Security connection failed" and Firefox does not let to correct the link. Site maintenance?