Doepfer

> Sorry to be such a latecomer to this, but I've just found out about  
> the A-111-2 and it looks great, but I really hope it will have LFO  
> capacity. I've not understood why this isn't more common as it's  
> great where space is a premium & it's a really useful feature on my  
> EML-101 (other brilliant EML features were the continually variable  
> VCO waveform, VCF (LP-BP-HP), and amplitude/ring modulation, which  
> no one else seems to offer).

I for one found that an interesting module.

For what it's worth, though I'm not the greatest electronics expert,  
my understanding is the EML does "cheat" on those variable features.  
Most of the features you describe aren't true morphs, they are merely  
crossfades between multiple outputs (that you don't  get individual  
outputs for, the pot is your only access). So I think you could  
achieve similar results with the A-138e as a 3-way crossfader.

Actually as a side topic which hopefully isn't too DIY and  
potentially slightly off-topic. I know the EML used a lot of center  
tapped pots. I'm curious if anyone knows where to obtain some or has  
had success modifying a standard pot to have an additional center tap?

As for the ring modulator, as I understand it it's also considered  
fully balanced modulation with 4 quadrant VCAs that respond to  
negative voltages. One can vary the index/degree of the modulation  
and get varying amounts of AM, a key difference would be with AM you  
can hear the carrier while ring modulation more or less rejects the  
carrier though not always perfectly. While a lot of newer modules  
omit a control for less than balanced modulation quite a few older  
ones had it. Serge, Buchla and PAIA come to mind. Generally one can  
do one better than EML and get voltage control of the degree of  
modulation from zero up to ring. That's one big downside of EML, you  
get some very interesting controls via pots but they are only manual,  
not VC.

Nick