jleaman said:Can we buy the smd version ?
It's the same PCB. I am not sure if Brian feels like offering both SMD resistors and through-hole. I can honestly say that they both sound equal to me.
I am very happy to provide a list of values if people want to get their own SMD resistors.
The Pheonix resistors are awesome though. I would encourage people to take advantage of them. They are .6W and like 25 ppm, and I think they look cool.
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Joined 2002
Russ White said:
It's the same PCB. I am not sure if Brian feels like offering both SMD resistors and through-hole. I can honestly say that they both sound equal to me.
I am very happy to provide a list of values if people want to get their own SMD resistors.
The Pheonix resistors are awesome though. I would encourage people to take advantage of them. They are .6W and like 25 ppm, and I think they look cool.
I only ask because i want to use all smd and play with it and use it. My last Mini Aleph amps were smd and they sound alot better than the through hole one's.
P.s Is there a way i can talk to you about something Please email me ?
OK busy assembling my second programmer, first one reads fine, but refuses to write, so now I want to try the RCD one you linked earlier.
My question is that the pic you used is a 20pin jobbie, but the programmer you seemed to use only caters for 18 pin devices...
am I stoned?
My question is that the pic you used is a 20pin jobbie, but the programmer you seemed to use only caters for 18 pin devices...
am I stoned?
Nordic said:My question is that the pic you used is a 20pin jobbie, but the programmer you seemed to use only caters for 18 pin devices...
It works fine for the 20pin devices I have used (PIC16F685,687,689,690).
The RCD page is not exactly accurate on that point. I think he simply did not have all devices to test.
Cheers!
Russ
AndrewT said:what size of resistors do you use? 1206/805/603?
How do you cope with these small sizes?
I used 1206 Rhom.
Invest in a nice pair of fine tweezers. But really it is not that hard.
Cheers!
Russ
I built a self powered 2 transistor 74S05 tait programmer too, getting solid 5V and 13V on respective points off 2 9V batteries in series.
I have asked a friend to come and pick both up and go test it on his PC, so I'll wait for his feedback.
How did you overcome the problem Brian? After 7 days of non-stop battleing to get circuits components and done, I am pretty stumped.
I have asked a friend to come and pick both up and go test it on his PC, so I'll wait for his feedback.
How did you overcome the problem Brian? After 7 days of non-stop battleing to get circuits components and done, I am pretty stumped.
I used the RCD Programmer for the computers whitch have poor surge protection, (just to be safe I thought).
and the last circuit on this PDF http://picallw.feniks-pro.com/pdf/p16pro.pdf
and the last circuit on this PDF http://picallw.feniks-pro.com/pdf/p16pro.pdf
Nordic that RCD you built limits the current into the circuit via the 200ohm resistor. This could be causing your problem. If your computer has a reasonably mainstream MB and PS try replacing that resistor with a jumper.
I could not get that circuit to work with that resistor in place.
I could not get that circuit to work with that resistor in place.
Kits
So, still waiting for the fixed production boards to arrive, but here is a sneak peak of a JT built with kit parts (these are bad boards that are modded to repair the trace error):
Balanced kit has two of the relay boards, and the control cable daisy chains to them. The standoffs supplied with the kits intend for the boards to stack, so one set of F-F, then one set of M-F for each relay board.
For scale, each of those relays is exactly 1cm long.
So, still waiting for the fixed production boards to arrive, but here is a sneak peak of a JT built with kit parts (these are bad boards that are modded to repair the trace error):
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Balanced kit has two of the relay boards, and the control cable daisy chains to them. The standoffs supplied with the kits intend for the boards to stack, so one set of F-F, then one set of M-F for each relay board.
For scale, each of those relays is exactly 1cm long.
Member
Joined 2002
Apllication note.
Some of you may find this application for this circuit interesting...
http://www.diyaudio.com/forums/showthread.php?postid=901534#post901534
Some of you may find this application for this circuit interesting...
http://www.diyaudio.com/forums/showthread.php?postid=901534#post901534
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