Yes, I think that I will be able to prepare about 15 sets for this project and make them available. I didn't order to many boards.
"Does the clock stop when control is idle?
Is is possible to switch the display off (has little sense, I know )"
I can do something like that 😉 But take a look at schematic - there is optoisolation between stamp and control board.
You don't have to use BUF634 - I don't like them to much. Just put some high output current op-amps like LM6171...
Troystg, there is a place for two buttons to control volume instead of encoder and another two for selector. Mute and another functions are controlled from remote.
"Does the clock stop when control is idle?
Is is possible to switch the display off (has little sense, I know )"
I can do something like that 😉 But take a look at schematic - there is optoisolation between stamp and control board.
You don't have to use BUF634 - I don't like them to much. Just put some high output current op-amps like LM6171...
Troystg, there is a place for two buttons to control volume instead of encoder and another two for selector. Mute and another functions are controlled from remote.
An externally hosted image should be here but it was not working when we last tested it.
I didn't notice what type of MCU you used. If it is a PIC, is there a header on the board for ICSP, or would the chips have to be flashed externally?
Mr Teal said:
It's Atmel AVR ATMega series processor (8535, 16, 32). I didn't provide any ISP connector on PCB, but it's not a problem to solder it directly to microcontroller terminals.
Troystg, there is a place for two buttons to control volume instead of encoder and another two for selector. Mute and another functions are controlled from remote.
Ok, so local (front panel) can be either rotary encoder OR push buttons for volume, and source selector buttons.
Those same functions are also available via remote.
Excellent!.. I loved my old Audio Alchemy DLC except no local controls. It was remote only and I don't know who that annoyed more, my ex-wife or I.
Ok, so local (front panel) can be either rotary encoder OR push buttons for volume, and source selector buttons.
Those same functions are also available via remote.
Excellent!.. I loved my old Audio Alchemy DLC except no local controls. It was remote only and I don't know who that annoyed more, my ex-wife or I.
troystg said:
Yes, so if you wont to make some chip regulation - just use 4 switches mounted on front panel (they should look quite nice located under LCD).
troystg said:
Good question 😉 I will try to answer it until end of this week. I'm a little busy now to make final calculation.
BASIC STAMP CODE
CAN SOMEONE GIVE A BASIC STAMP CODE FOR A Digital Volume Controlled Preamplifier( REMOTE CONTROLED)?,PLS.....
I AM USING PIC 16F74 .
SRY FOR MY WEAK ENGLISH...I AM FROM ROMANIA!
CAN SOMEONE GIVE A BASIC STAMP CODE FOR A Digital Volume Controlled Preamplifier( REMOTE CONTROLED)?,PLS.....
I AM USING PIC 16F74 .
SRY FOR MY WEAK ENGLISH...I AM FROM ROMANIA!
Re: BASIC STAMP CODE
Not Basic, but I've put the C source for my PIC16F877 and PGA2310 based controller on my web site:
http://www.littlefishbicycles.com/preamp/
Cheers,
Suzy
dan388 said:
Not Basic, but I've put the C source for my PIC16F877 and PGA2310 based controller on my web site:
http://www.littlefishbicycles.com/preamp/
Cheers,
Suzy
veteran said:Suzyj, great looking preamplifier! Where can I buy optical encoder like yours?
I bought mine from Farnell. It's a Spectrol 120EN-128-CBL,Farnell part No. 328-2338. It was very expensive - AU$120 or so, but feels really good in use.
Cheers,
Suzy
Kit available yet?
This sounds ideal for a project I'm working on. Is there any further word on it? If it is available put me down for one!!!
This sounds ideal for a project I'm working on. Is there any further word on it? If it is available put me down for one!!!
veteran
Nice work.
Just found this thread.
I was looking at the pag23** series but i cannot bypass the internal opamp, had enough BB sound.
Saw the 8816 and 'an external opamp😀' perfect for discrete preamp.
Have you noticed any sound "signature" change using the 8816?
Any advise on implementing the WM8816?
suzyj
Nice preamp😀
Did you try the WM8816?
allan
Nice work.
Just found this thread.
I was looking at the pag23** series but i cannot bypass the internal opamp, had enough BB sound.
Saw the 8816 and 'an external opamp😀' perfect for discrete preamp.
Have you noticed any sound "signature" change using the 8816?
Any advise on implementing the WM8816?
suzyj
Nice preamp😀
Did you try the WM8816?
allan
Is there a way to use the LM1036
I think we need a remote control thread ,
Can you show me how to use the LM1036 and your remote
control with display. it is great work.
http://www.national.com/pf/LM/LM1036.html#Datasheet
Thank You......
I think we need a remote control thread ,
Can you show me how to use the LM1036 and your remote
control with display. it is great work.
http://www.national.com/pf/LM/LM1036.html#Datasheet
Thank You......
Hi Damian:
Anything further on the possibility of kits for your remote front-end?
I still have my hand frimly waving in the air for one set of boards and parts.
PS: I have almost finished the phono pre from your boards - what a nifty little project it is.
Jess
Anything further on the possibility of kits for your remote front-end?
I still have my hand frimly waving in the air for one set of boards and parts.
PS: I have almost finished the phono pre from your boards - what a nifty little project it is.
Jess