PLAN B analog blog

Peter,
Nice to get a little insight...
I have been watching your Eclectic Music Box with lust for some time 
now.  After closer inspection, I don't see any multiples. Do my eyes 
decieve me or do you just patch dot-to-dot?
Also, maybe you're not the guy to ask, but since you mentioned it, 
where does one find vector rails?
Toodeloo,
Josh from Schematic
 

--- In PLAN_B_analog_blog@yahoogroups.com, "(i think you can figure 
that out)" <peter@...> wrote:
>
> For reasons of sanity, unless there's a particularily hectic work 
week and I need to catch 
> up, or unless I've got a new circuit I'm wrapped up in, outside of 
my weekly programming 
> session with Phil Gallo on Sunday evenings, I have again begun to 
reserve the weekends 
> for composing.
> 
> Why am I telling you this?
> 
> Because this Saturday morning I sat down to begin putting some 
ideas I"ve been kicking 
> around on disk, and noticed a pesky hum coming from my analog rig 
and decided to 
> temporaily abandon my writing and instread give the behmouth a long 
overdue overall.  
> Something I suggest we all do in the next few weeks, especially 
those of you who may be 
> using Model 15's that are up to or over a year old.  Trim pots are 
for adjusting - the otrher 
> side of the same coin is they go out of adjustment.   Spring 
cleaning takes care of this.
> 
> I spent the whole weekend - you need not take this much time.  
Along with rewiring some 
> of the power lines, I removed the last of the steal boats I 
originally used to secure my 
> modules out of the main cainet and replaced them with the last two 
Vector moutning rails.  
> Been meaning to do this for six months.  ThiIngs fit together much 
nicer now and the 
> cabinet, which originally weighted over 75 pounds EMPTY, is now a 
stealth 45 pounds fully 
> stuffed.  That's how much the four 16 gage steal boats weighed!
> 
> In the next few days I will be putting up a Model 15 tuning and 
calibration procedure on 
> EAR site.  It'll outline the proper method for 1V/oct adjustment, 
as well as waveshape 
> adjustment if you so happen to own an oscilloscope (highly 
recommended - you can get 
> them on the 'bay for under 100 bucks).
> 
> Back to the weekend:  Along with calibration, I converted the 
system to a single voltage.  I 
> have some beloved Blacet modules I still use constantly which were 
running off their own 
> 15 volt supply since forever.  I've now changed this so the entire 
system runs off of two 3 
> amp 12 volt supplies and in so doing, my hum disappeared.  I've got 
Jensen transformers 
> in my audio path so I'm quieter than most - but even with these 
(highly recommended) 
> devices, I had enough system noise that I didn't feel comfortable 
recording quiet passages.  
> 
> If any of you are using a dual VCC standard, you may consider doing 
this.
> 
> Look for an anouncement once the cal procedure goes live.
> 
> - P
>