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Someone out there might be able to help.   I bought a CP-70B over the weekend (LONG STORY) - and it's all set up and sounds great.   But I was looking at the manual this morning (nothing better to do at 6:00 AM)...  and I all of a sudden realized that there weren't any leg braces (legs - yes, but braces - no).    UH OH.   I'm 100% sure that the guy I purchased this from never had them either (it had sat in his home studio for years, and we pulled it out together - no braces at that point).
So... Here's the question - I want to just make a set.   I can weld these up in no time.   I would just need some basic measurements.   What is the tube length (excluding the end parts).  How long is the flat part that attaches to the base of the keyboard and how far from the "bend" is the center of the hole in it?  On the bottom part, how long is that attachment to the brace, and again, how far from the pivot to the center of the hole?
If anyone wants to take some pictures with a tape measure next to one of these, it would be REALLY APPRECIATED!!!!!!!!!
I know these braces are scarce, so I'll be cutting and bending some tubing!!!
THANKS!
- Paul

I've replaced the filter caps to no avail.   I've watched Uncle Doug amp videos (I've even built my own Fender tube clone from scratch).   I've wiggled a few things, touched a few things to see if noise was dramatically different.

I know this isn't going to be easy.    I've replaced (temporarily) all the tubes.   I'm using two prong cord, but have swapped polarity.   Neither impacted the problem.

Noise increases with volume - I believe that's an indication of the issue being in the 12AU7 area of the amp (before the 6V6 tubes).

Power wires are twisted, as are speaker.   Tried touching the 2.1" input - louder.   Touched the pickup bar - modulated the hum.   

Tried increasing and decreasing the volume with the on-board trim pot - just lowered or increased the overall volume, still has the hum (goes up and down with volume).

It's pretty significant - it's very prevalent.   Key sound is probably 20-30% louder than hum.

Any cool thoughts?   I've read a lot of Jezza's posts on his amp, and others as well... 

- Paul

Hey all!   I'm not that experienced with piano actions, but I suspect my issue isn't going to be that hard for some of you!!!   Most of the notes on my 112 sound with only nominal key pressure, but some are silent - the only way to get a tone is to strike the key pretty hard.  I'd say this impacts about 10-15% of the keys.

I've looked through the 112 manual, and I believe the solution is spelled out somewhere in the "touch" section, but my lack of keyboard action knowledge and the terms associated with it are stopping me.  From what I can gather, it sounds as though I might need to adjust either/both the capstan screw and/or the regulating screw.  From my description, is there a sense what to start with?   My concern is I don't want to make things worse (not too big of a concern, but figure someone out there will have a piece of advice. 

The keyboard is definitely a 112, not a 112a. 

Thanks!!!

- Paul

All -

So happy to have found this resource!!!   I was at an estate sale yesterday, and picked up a mottled pink Wurlitzer 112(a).   Serial number is in the mid-4000s.   Build date is 1/16/1956.   It has legs (but they're the stool legs I realized when I was about a foot and a half off the floor!!!) and the pedal.   Amp works - was popping, I re-seated the tubes, and now I've just got some volume-linked hiss (I assume I'll be replacing the filter caps in the metal can)...  All the tines are there.   Keys are perfect.   Looks like it was hardly used.   It had been stored in an unheated garage for eons, but condition wise, I'd give it an 8+.

Here's my question.   About 7 keys around middle C (from Bb to E) were not in position when I got it (turns out they were inside the case of the keyboard).  I installed them by lifting the hammers, etc. without difficulty.  The problem is (and I'm sure there are people already rolling their eyes) - the mechanism above these keys isn't sitting right.   I'm not a piano technician at all, but am pretty handy.   I downloaded the 112 manual, and studied it, and it appears to me that the "fly" (part number 9 in figure 6) is leaning back on these notes, allowing the butt to droop (whose butt wouldn't after 65 years... :-) ) down toward the key when looking at it from the front.   I believe I need to somehow recapture the fly between the regulator screw (part number 15) and the butt (part number 11).   Unfortunately, I do NOT know how to do this.  :-)

I tried for two hours using stiff wire, soft wire, long pliers, key strokes, front side, back side, you name it.   I failed.  Does anyone have a hint on how to accomplish this?   I was thinking maybe I would put the keyboard facing down across some stands and let gravity do the work as I manipulated the keys.   Any thoughts or advice would be greatly appreciated.  GREATLY APPRECIATED!

I'll keep everyone up to date as I progress - I suspect others might benefit.  I'll add pictures as soon as I can figure out how to shrink their size.

I'm located in the Boston, MA area if anyone wants to check it out!!!

- Paul

PS - Just FYI - I had an EP-200 in the late 70s which I dropped off at our local Goodwill in about 1994.  A little bit of regret there.   :-)   And I have had a Stage 73 for a long time - need to pull that up and get it back in gear too!)