Re: [AH] RE-501 chorus problem

From Oakley Sound via analogue
Sent Mon, Apr 15th 2019, 20:40

Isn't this exactly what a Chorus circuit is supposed to do?  Varying the 
pitch by modulating the delay time of the BBD and mixing that with 
original signal?

1 semitone seems like a lot, maybe there's a trimmer for modulation amount?

-Dave

On 4/15/19 4:09 PM, Kenny Balys wrote:
>
> I don't have one of these but a general piece of advice for all Roland
> gear of that era is to have a good close look at the PCB. Look at the 
> traces
> closely.
>
> Sometimes a sizzled trace can cause all kinds of strange issues.
>
>
>
> On 15.04.19 20:01 , Fernando Zarone wrote:
>> Hi all,
>> The RE-501 works great, but the chorus exhibits a problem: I input a 
>> note, one oscillator, stably tuned, and, with the Chirus intensity 
>> pot at the max, it looks like a LFO engaged, raising and lowering the 
>> tune about 1 semitone.
>> Any help? AFAIR, that section is BBD based, independent of the tape 
>> circuit, isn’t it?
>> Any help appreciated
>> Ciao
>> F
>>

-- 
David Moylan
Expedition Electronics
sonic adventures!