Mikkel,
I need to debounce the input selector switches. Sometimes switches respond only second or even third time when pressed, or refuse to switch if switched just a bit faster. I'm using long travel lighted switches (ITW series 39).
I tried with debouncing circuits with schmitt triggers but it still does not work correctly. The triggers otherwise work well with cmos flip flops.
Is there a solution for this?
thanks,
Peter
I need to debounce the input selector switches. Sometimes switches respond only second or even third time when pressed, or refuse to switch if switched just a bit faster. I'm using long travel lighted switches (ITW series 39).
I tried with debouncing circuits with schmitt triggers but it still does not work correctly. The triggers otherwise work well with cmos flip flops.
Is there a solution for this?
thanks,
Peter
5.1 input selector
Hi Mikkel,
My Thule PR350b have only one true analog input that happens to be a 5.1 input. Every other input is either digital or is routed through A/D-D/A conversion in the DSP.
I am interested in a kit for 6/2 ch switching, without volume control, as you indicated this possible in an earlier thread:
Wishlist:
- 3 x 6 ch (5.1) inputs
- 3 x 2 ch (stereo) inputs
- 1 x 6 ch (5.1) output
- 16 x 1 LED display for source indication
- 6 x user programmable source names + " mute " in display
- output or inputs muted on power on
- mute selectable from remote
- control by my Philips SBC RU 760 remote control
- no balanced inputs/outputs
- no active components in signal path
- no offset adjustment capabilities
- no front panel controls
- no volume control
- no tape loop
Would all this be possible? What do I need to order for this setup? Price?
/Anders Persson
Hi Mikkel,
My Thule PR350b have only one true analog input that happens to be a 5.1 input. Every other input is either digital or is routed through A/D-D/A conversion in the DSP.
I am interested in a kit for 6/2 ch switching, without volume control, as you indicated this possible in an earlier thread:
Wishlist:
- 3 x 6 ch (5.1) inputs
- 3 x 2 ch (stereo) inputs
- 1 x 6 ch (5.1) output
- 16 x 1 LED display for source indication
- 6 x user programmable source names + " mute " in display
- output or inputs muted on power on
- mute selectable from remote
- control by my Philips SBC RU 760 remote control
- no balanced inputs/outputs
- no active components in signal path
- no offset adjustment capabilities
- no front panel controls
- no volume control
- no tape loop
Would all this be possible? What do I need to order for this setup? Price?
/Anders Persson
Re: 5.1 input selector
The simplest/cheapest would probably be to make a 4-channel add-on board. You could use a standard Input1 board for the stereo channels, and an extra board for the 4 channels. That would get you two boards of approximately the same size, and the 6 inputs you need.
What type of LED display are you talking about? If you can get a 16x1 OLED display (LCD compatible) that will work. Regular starburst or matrix LED displays are more difficult to work with. You could also use a VFD with a coloured filter.
Yes, the rest should be possible. The extra input board will cost around the same as the Input1. But a bit more because of the low quantity of boards I will order
Best regards,
Mikkel C. Simonsen
siouxiebuff said:
The simplest/cheapest would probably be to make a 4-channel add-on board. You could use a standard Input1 board for the stereo channels, and an extra board for the 4 channels. That would get you two boards of approximately the same size, and the 6 inputs you need.
What type of LED display are you talking about? If you can get a 16x1 OLED display (LCD compatible) that will work. Regular starburst or matrix LED displays are more difficult to work with. You could also use a VFD with a coloured filter.
Yes, the rest should be possible. The extra input board will cost around the same as the Input1. But a bit more because of the low quantity of boards I will order
Best regards,
Mikkel C. Simonsen
Ok, I think I understand better now.
With 4 channel board you mean a board with 3 x 4 channel inputs. Excellent!
I am not sure where the 5.1 output will fit however. I hope you can get one of those in as well.
So I then need the following:
- Input 1 board
- the 4 ch board
- Control 2 board
- wallwart supply
- display
Will I need a frontpanel board as well to get the IR - receiver? I will not need any front panel controls.
As I will manage with an 8 digit display, how about this:
http://www.elfa.se/pdf/75/07552862.pdf
Regards,
/Anders
With 4 channel board you mean a board with 3 x 4 channel inputs. Excellent!
I am not sure where the 5.1 output will fit however. I hope you can get one of those in as well.
So I then need the following:
- Input 1 board
- the 4 ch board
- Control 2 board
- wallwart supply
- display
Will I need a frontpanel board as well to get the IR - receiver? I will not need any front panel controls.
As I will manage with an 8 digit display, how about this:
http://www.elfa.se/pdf/75/07552862.pdf
Regards,
/Anders
whish list
I am not sure but like somebody sad wish list
What would be really nice for me to have 5 inputs 1 output and one direct (tape monitor) that is exactly the same size as relvol3, and no need for these RCA connectors just holes we can put some silver wire This way it will be possible to stack the two PCBs and gain some valuable space that is always needed inside the chasis
Regards,
Pred
PS
I ordered last spring my relvol3, still not tried, time flies and no time, but one of these days...
I am not sure but like somebody sad wish list
What would be really nice for me to have 5 inputs 1 output and one direct (tape monitor) that is exactly the same size as relvol3, and no need for these RCA connectors just holes we can put some silver wire
This way it will be possible to stack the two PCBs and gain some valuable space that is always needed inside the chasis Regards,
Pred
PS
I ordered last spring my relvol3, still not tried, time flies and no time, but one of these days...
Re: whish list
I guess you would want that board to be balanced, since you have the RelVol3? I don't think I can fit that many full-size relays on a board the same size as the RelVol3. The Input2 board is a bit bigger - even without the connectors
I use the bigger relays on the input selector boards to avoid crosstalk. It's no problem on the balanced inputs (one relay per input), but the unbalanced inputs share a relay between the two channels. Perhaps I should use SMD relays and place them on both sides of the board
Best regards,
Mikkel C. Simonsen
pred said:I am not sure but like somebody sad wish list
What would be really nice for me to have 5 inputs 1 output and one direct (tape monitor) that is exactly the same size as relvol3, and no need for these RCA connectors just holes we can put some silver wire
I guess you would want that board to be balanced, since you have the RelVol3? I don't think I can fit that many full-size relays on a board the same size as the RelVol3. The Input2 board is a bit bigger - even without the connectors
I use the bigger relays on the input selector boards to avoid crosstalk. It's no problem on the balanced inputs (one relay per input), but the unbalanced inputs share a relay between the two channels. Perhaps I should use SMD relays and place them on both sides of the board
Best regards,
Mikkel C. Simonsen
Certificate error
If you try to order parts on my website, you may get a certificate error. It looks like the certificate of my ISP expired on the 22nd of January...
But don't worry - there is no security problem. And the certificate on my server doesn't expire until next year.
Best regards,
Mikkel C. Simonsen
If you try to order parts on my website, you may get a certificate error. It looks like the certificate of my ISP expired on the 22nd of January...
But don't worry - there is no security problem. And the certificate on my server doesn't expire until next year.
Best regards,
Mikkel C. Simonsen