artaommahe wrote:gtr2, it's simple RC-filter )
f = 1/(2*pi*R*C)
f - cutoff frequency
SFTFN wrote:I just troubleshot one m-108 eq that had a problem with half of the EQ LEDS being off and rest of the LEDs on. It turned out that an LED socket had gone bad on one of the sliders.
Fortunately only one socket was bad so I rearranged the sliders so that all EQ frequencies have their LEDs lighted up, but the gain and volume slider LEDs are off... At least it looks symmetrical now.
Anyway, does anyone know are these sliders possible to get anywhere? They're 20k miniature type with center detent.
drewl wrote:I found the sliders at Mouser.
They've been stocking alot of oddball pots used in newer amps and FX.
JimmyDS wrote:grounding and voltage connections on IC's
SFTFN wrote:I just troubleshot one m-108 eq that had a problem with half of the EQ LEDS being off and rest of the LEDs on. It turned out that an LED socket had gone bad on one of the sliders.
Fortunately only one socket was bad so I rearranged the sliders so that all EQ frequencies have their LEDs lighted up, but the gain and volume slider LEDs are off... At least it looks symmetrical now.
Anyway, does anyone know are these sliders possible to get anywhere? They're 20k miniature type with center detent.
apollomusicservice wrote: .... Also if you use base for IC's you can use TL074 which can be easier to find but with reduced performance
even after replaced with original...
drewl wrote:
I found the sliders at Mouser.
They've been stocking alot of oddball pots used in newer amps and FX.
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