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Hello Scott, Thank you for sharing this mouser reference, I will get these ones! So this resistor replacement choice answers to my previous question at same time, they are definitely 5W/1ohm resistors

The big ceramic resistors are current-limiters for the outputs. The ±15 rails on the CS-80 each pull about 2.5 amps in normal operation. If you had an accidental direct short to ground, this resistor

Thank you Joan, interesting! Yes it would be great if you could double check that, in case nobody else confirms this.Thanks!

That is probably the tolerance code "K" which means +/- 10%. So, anything between 0.9 and 1.1 ohms is within tolerance ;) I can check on my CS-80 Sunday if no one else is able to do by then.

Hello everyone, As I ran into recent issues with my CS80 power supply, I decided to go thru the recapping/4558's swap, that's when i realized that the white resistors connected behind the power

Hi all, I happened to find an original Yamaha SY-1 expression pedal which looks virtually identical to the one used for the CS50 and CS80, and when peeking inside it seems as if it is also based

did you ever get this sorted out joao?

hi there I'm having a similar problem with my cs-60, the 'speed' on the Sub-Oscillator section does nothing at all, essentially rendering the Sub-Osc useless for modulation. Aftertouch is working

hi all! I'm new here, so please forgive me if this could be worded better. It's great to know there's a community for this. I just bought this CS-60 from a shop called Perfect Circuit, reputable

You might be forgetting that "the resistor in series" also includes the capacitor itself. Add an ohm or so for electrolytics due to ESR. <synthrodriguez@...> wrote:

Very good, thanks for the thought and reply. wrote:

Scott: The discharging speed of a capacitor is determined by its value and by that of the resistor in series with it (T=RC). So I don't think the type of the capacitor really matters.

Joachim: I read your TSB board website page with interest, thank you for the excellent explanation! I have a customer synth here where a previous tech decided to replace all the 0.33 uF tantalum

Great info! Here's a snapshot of a spreadsheet I created and put under Files many years ago: aftertouch_response.jpg (

Thank you!

Hi, It's a ten levels analog signal. It is smoothed by a filter later in the signal path. You'll find a detailed explanation of how it works here:

Hi all, I've recently been watching a video about the internals of the CS80 and it briefly showed the aftertouch board. It looks like it has multiple exposed vertical lines on the pcb, and then an

Hello, I've got a CS80 and CS60 for sale here.? Both have Kenton MIDI and unison mods.? Both have been gone over by a professional musician and are working perfectly and in tune.? The CS80 has had

I would be interested in keeping a set as a backup. I’ll keep my eye on your progress and see how this project turns out. Regards, Nigel

Hi Tony, I would likely be interested in a set of new contacts, please keep me informed on the development. Thank you Martin