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Martin: For PH1, PH2, and PH3 on the PRA board, the *Xvive Vactrol VTL5C3* is a drop-in replacement. Its response curve is the same as original working parts on the PRA card according to my tests

Hi Martin, how told that was Mr. Scott Rodriguez, I only agreed with his comment. Anyway let me tell you that if the Diode that illuminates the photo resistor in PH1, PH2 or PH3 opens up, that is

Greetings to all, Since the topic is including problems on the PRA board (which mine has) I thought I would ask. Gustavo when you write: “If one or both of the sensors in the CS-80 are

Hi, Could anyone provide the correct style/base number for the 24v 5w bulb in this expression pedal? It seems like most of the 24V 5W are huge. Many indicator lamps have a standard four digit number

Gustavo.: I was trying to assist Mathias with his debugging efforts. And right you are, the preamp card is called out as PRA, not PRE, my mistake. geegrinovero@...> wrote:

Hello Scott, I do not know if you are adressing to Mathias or me.... Just in case it is me, I have the original Foot Controller with Lamp/Photoresistor. and the board that you referenced it is PRA

Do you have a Yamaha FC7 expression pedal you could use to check out the circuit? They work ok with the CS-80, but the range is a bit biased compared to the original light-operated unit. That will at

Hello Mathias, in a couple of weeks I will be at the place where it is stored my CS-80. Then I will be able to take note of the Foot Controller circuit and pass you some information to verify

Hi Gustavo, Thank you for the information! I did open up the pedal and good news: the bulb is working when plugged in and gives off light. I don't know how to test the photo-resistor, however. Any

Thanks David, this was amazing! Best, Mathias

Hi all! I ran across this Led Zeppelin video last night about In Through The Out Door. It has a surprising amount about the wonderful Dream Machine including the ELP and Abba connections. This

No problem Some else wants it. It will be good see it get used. Best of luck solving your problem. From: [email protected] <[email protected]> on behalf of Mathias Tjonn

Hello Mathias, I do not have had to deal with problems in my expression pedal, but I have some ideas how it works (I'm a tech guy) I would lend you a hand. The mechanism has 3 parts. 1.- A lighting

Hi Stan, Thank you kindly for the offer, but since I just bought an original pedal, I'd like to find out if the problem lies with it or with my CS-80 (if not, even if I buy your pedal, the issue

Hi, I have a pedal I am not using. I sold my CS80and found it later. I you are interested let me know. I would like to get $200.00. That’s what I paid for it about 10 years ago. Stan From:

Greetings fellow synth travelers, So, I finally found an original expression pedal for my CS-80 after many years of searching...and it doesn't work. I understand there's a 24v5w bulb in there and

BINGO! Changed the VCOs socket and all is fine. Thanks Tommy, thanks everyone for your quick responses. Happy end.

Hi. Yes, the problem? The IC VCO Socket !! many years ago, with the same problem I resolve only changing the Socket. ? [email protected]> ha scritto:

What I would try is using a hot air station with adjustable temperature and see if I could locate the faulty component that way. Greg

Thanks Florian for your response. I have to admit that you method is pretty hardcore! Personally I am afraid to do that - I might fry something in the process and there is way to many "points of