Benutzer:Felicia/Modular-Synth/VCO - Versionsgeschichte

Felicia: Felicia verschob die Seite Benutzer:Felicitus/Modular-Synth/VCO nach Benutzer:Felicia/Modular-Synth/VCO: Seite während der Benutzerkontoumbenennung von „Felicitus“ in „Felicia“ automatisch verschoben

2021-08-06T12:11:35Z

Felicia verschob die Seite Benutzer:Felicitus/Modular-Synth/VCO nach Benutzer:Felicia/Modular-Synth/VCO: Seite während der Benutzerkontoumbenennung von „Felicitus“ in „Felicia“ automatisch verschoben

← Nächstältere Version	Version vom 6. August 2021, 12:11 Uhr
(kein Unterschied)

Felicia am 7. April 2012 um 21:27 Uhr

2012-04-07T21:27:45Z

← Nächstältere Version		Version vom 7. April 2012, 21:27 Uhr
Zeile 32:		Zeile 32:

	* The sine looked very odd. This wasn't actually a bug - T3 wasn't adjusted. I accidently had the scope set to AC coupling, so I actually didn't touch T3.		* The sine looked very odd. This wasn't actually a bug - T3 wasn't adjusted. I accidently had the scope set to AC coupling, so I actually didn't touch T3.

			== Experiments ==

			* Once the heat gun has arrived, test how well the tempco works.

Felicia: /* Issues */

2012-04-07T21:24:25Z

Issues

← Nächstältere Version		Version vom 7. April 2012, 21:24 Uhr
Zeile 27:		Zeile 27:
	* All major issues solved. Works like a charm!		* All major issues solved. Works like a charm!
	* If the frequency pot is turned to 5 (center), the frequency is already very high. Need to investigate if this is wanted or a "bug".		* If the frequency pot is turned to 5 (center), the frequency is already very high. Need to investigate if this is wanted or a "bug".
	* Switching from hard sync to soft sync causes a minor frequency. Not sure why, needs investigation		* Switching from hard sync to soft sync causes a minor frequency. Not sure why, needs investigation. Maybe fixes itself once a CV voltage is applied

	== Previous Issues ==		== Previous Issues ==

Felicia am 7. April 2012 um 21:24 Uhr

2012-04-07T21:24:03Z

← Nächstältere Version		Version vom 7. April 2012, 21:24 Uhr
Zeile 27:		Zeile 27:
	* All major issues solved. Works like a charm!		* All major issues solved. Works like a charm!
	* If the frequency pot is turned to 5 (center), the frequency is already very high. Need to investigate if this is wanted or a "bug".		* If the frequency pot is turned to 5 (center), the frequency is already very high. Need to investigate if this is wanted or a "bug".
			* Switching from hard sync to soft sync causes a minor frequency. Not sure why, needs investigation

	== Previous Issues ==		== Previous Issues ==

Felicia am 7. April 2012 um 21:11 Uhr

2012-04-07T21:11:44Z

← Nächstältere Version		Version vom 7. April 2012, 21:11 Uhr
Zeile 27:		Zeile 27:
	* All major issues solved. Works like a charm!		* All major issues solved. Works like a charm!
	* If the frequency pot is turned to 5 (center), the frequency is already very high. Need to investigate if this is wanted or a "bug".		* If the frequency pot is turned to 5 (center), the frequency is already very high. Need to investigate if this is wanted or a "bug".

			== Previous Issues ==

			* The sine looked very odd. This wasn't actually a bug - T3 wasn't adjusted. I accidently had the scope set to AC coupling, so I actually didn't touch T3.

Felicia am 7. April 2012 um 21:08 Uhr

2012-04-07T21:08:13Z

← Nächstältere Version		Version vom 7. April 2012, 21:08 Uhr
Zeile 25:		Zeile 25:
	== Issues ==		== Issues ==

	* ~~After the build, the VCO works~~! ~~No magic smoke ;)~~		* All major issues solved. Works like a charm!
	* ~~The sine looks very odd. Negative curve looks good, positive curve looks strange. Seems like~~ the ~~positive Voltage breaks~~, ~~probably a swapped resistor on~~ the ~~board, or the lab PSU doesn't work too well~~.~~..need~~ to investigate		* If the frequency pot is turned to 5 (center), the frequency is already very high. Need to investigate if this is wanted or a "bug".
	* Saw looked good, don't remember tri and pulse.
	* Octave switch is ~~not connected yet, as I~~ wanted ~~to have the board working first~~.

Felicia am 7. April 2012 um 14:27 Uhr

2012-04-07T14:27:59Z

← Nächstältere Version		Version vom 7. April 2012, 14:27 Uhr
Zeile 21:		Zeile 21:
	** Another thing to add to the PCB would be having the octave switch and sync connectors optional, so one can decide to skip or implement both switches by connecting a jumper and a set of connectors.		** Another thing to add to the PCB would be having the octave switch and sync connectors optional, so one can decide to skip or implement both switches by connecting a jumper and a set of connectors.
	* Because I'll re-layout the modules anyways, I have an idea of adding a PSU adaptor to each board, so I can build one board and use several different power connectors.		* Because I'll re-layout the modules anyways, I have an idea of adding a PSU adaptor to each board, so I can build one board and use several different power connectors.
			* The schematic contains resistor names, but they are missing from the boards. So it is very hard to debug because only values, not names, are printed on the PCB.

	== Issues ==		== Issues ==

Felicia am 7. April 2012 um 08:05 Uhr

2012-04-07T08:05:38Z

← Nächstältere Version		Version vom 7. April 2012, 08:05 Uhr
Zeile 19:		Zeile 19:
	* Much wiring is done at the panel itself. This makes it hard to swap the front panel with a more robust one. When I'm building other YuSynth modules, I'll re-design the PCB first to have one connector for each front panel element, even if it might bring a bit of noise into the system.		* Much wiring is done at the panel itself. This makes it hard to swap the front panel with a more robust one. When I'm building other YuSynth modules, I'll re-design the PCB first to have one connector for each front panel element, even if it might bring a bit of noise into the system.
	** Because I didn't like wiring behind the front panel, I added a separate PCB where I bring connected front panel elements together.		** Because I didn't like wiring behind the front panel, I added a separate PCB where I bring connected front panel elements together.
			** Another thing to add to the PCB would be having the octave switch and sync connectors optional, so one can decide to skip or implement both switches by connecting a jumper and a set of connectors.
	* Because I'll re-layout the modules anyways, I have an idea of adding a PSU adaptor to each board, so I can build one board and use several different power connectors.		* Because I'll re-layout the modules anyways, I have an idea of adding a PSU adaptor to each board, so I can build one board and use several different power connectors.

Zeile 26:		Zeile 27:
	* The sine looks very odd. Negative curve looks good, positive curve looks strange. Seems like the positive Voltage breaks, probably a swapped resistor on the board, or the lab PSU doesn't work too well...need to investigate		* The sine looks very odd. Negative curve looks good, positive curve looks strange. Seems like the positive Voltage breaks, probably a swapped resistor on the board, or the lab PSU doesn't work too well...need to investigate
	* Saw looked good, don't remember tri and pulse.		* Saw looked good, don't remember tri and pulse.
			* Octave switch is not connected yet, as I wanted to have the board working first.

Felicia am 7. April 2012 um 08:02 Uhr

2012-04-07T08:02:27Z

← Nächstältere Version		Version vom 7. April 2012, 08:02 Uhr
Zeile 8:		Zeile 8:
	* I've etched a PCB with the original PCB provided by Yves		* I've etched a PCB with the original PCB provided by Yves
	* The board was populated, soldering pad size was very good, so this was done in about two hours		* The board was populated, soldering pad size was very good, so this was done in about two hours
	* The panel was made of 2mm wood, hand-marked and drilled holes for the panel elements. The front panel design was made by myself and printed onto Zweckform 3487 white ~~transparency~~ sheets using a CLP-315 color laser printer. It was glued with "spray glue" onto the wooden panel.		* The panel was made of 2mm wood, hand-marked and drilled holes for the panel elements. The front panel design was made by myself and printed onto Zweckform 3487 white plastic sheets using a CLP-315 color laser printer. It was glued with "spray glue" onto the wooden panel.

	It is noteworthy that the etching and soldering the PCB took only about 3 hours, while creating the front panel and wiring the connections took about at least 6 hours. Overall build time was 9-10 hours, planning time was the same amount.		It is noteworthy that the etching and soldering the PCB took only about 3 hours, while creating the front panel and wiring the connections took about at least 6 hours. Overall build time was 9-10 hours, planning time was the same amount.

			I also thought that I probably want an aluminium front panel, but due to the very good results with the plastic sheets, I probably will stick to them for cost reasons. The 2mm wood panel also seems to be quite solid.

	=== Construction Troubles ===		=== Construction Troubles ===
Zeile 18:		Zeile 20:
	** Because I didn't like wiring behind the front panel, I added a separate PCB where I bring connected front panel elements together.		** Because I didn't like wiring behind the front panel, I added a separate PCB where I bring connected front panel elements together.
	* Because I'll re-layout the modules anyways, I have an idea of adding a PSU adaptor to each board, so I can build one board and use several different power connectors.		* Because I'll re-layout the modules anyways, I have an idea of adding a PSU adaptor to each board, so I can build one board and use several different power connectors.


	== Issues ==		== Issues ==

Felicia: Preis falsch

2012-04-07T08:00:15Z

Preis falsch

← Nächstältere Version		Version vom 7. April 2012, 08:00 Uhr
Zeile 315:		Zeile 315:
	\| Reichelt		\| Reichelt
	\| KERKO-500 100P		\| KERKO-500 100P
	\| 4		\| 0.04
	\| 4		\| 0.04
	\|-		\|-
	\| 1		\| 1
Zeile 452:		Zeile 452:
	\|		\|
	\|		\|
	\| 24.16		\| 20.16
	\|}		\|}