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Messages - EauClaireGuy

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1
The Wurlitzer Electric Piano / Re: Wurlitzer 200 Audio Input
« on: July 23, 2020, 10:46:46 AM »

Eau Claire,

Vintage Vibe has a reasonably readable copy of the wurly schematics online:
https://cdn.shopify.com/s/files/1/0666/2821/files/Wurlitzer_200_and_200A_Service_Manual.pdf?8872610067384662061

Go down to page 43 and 45 and right click and select "rotate clockwise."

The schematic on page 43 shows you the resistor values that Wurlitzer used for a voltage divider to provide "tape in" aux; and with no resistors, it would be "microphone in" or "phono in" (without RIAA EQ).  Note that this section of the circuit is isolated from the high-voltage (low current <0.3mA) on the harp by capacitors 55 and 58.

The diagram on page 45 shows you where the connection terminals (3) and (1) are on the left side of the board next to the RCA jack.  (Note that the diagrams for the 200, on page 40 and 42 show the board upside down, so the "mic in" terminals are on the right side, next to the RCA jack.)

If you really are going to carve up your wurly to add an effects loop, you could lift one end of R45 out of the pc board, take the "send" signal from the end of the trimmer pot, build a buffer amp to bring it up to the level that works with your effects, and then just return the signal to terminal (3) through the "tape in."  You could use a switched TRS 1/4" jack (Switchcraft 13b or 14b) to take the effects loop in and out of the audio path, and use an effects loop Y cable.  That doesn't sound super-convenient, just to add phaser, flanger, or delay through the on-board speakers.  I would leave it as-is and use the AUX out and an external amp.


Sean


I guess I was more looking just to add a 1/4 in just because I thought it might be fun to run a guitar through the amp. Mine used to be a 206, would it be detrimental to add a 1/4 in to the "Mik" input that used to be there?

2
The Wurlitzer Electric Piano / Re: Wurlitzer 200 Audio Input
« on: July 13, 2020, 06:30:19 PM »
200

3
The Wurlitzer Electric Piano / Wurlitzer 200 Audio Input
« on: July 13, 2020, 01:30:01 PM »
Has anyone ever messed around with running audio into the Wurlitzers amp? Im curious as to what it would take to make that happen. Also curious about if anyone has ever installed an fx loop in their wurly? Thanks!

4
The Wurlitzer Electric Piano / Re: First Steps
« on: November 07, 2019, 11:43:20 AM »
Vibratio is definitely nice.

Many people upgrade the amp to a new one (which would solve that problem).

If you've lubed the action, you should go through the whole regulation procedure (lost motion, let off) if you haven't already.
Any way you could point me in the right direction for this? Also some of the keys are still sticking in the low end I think due to the key bushings, what should I do?

5
The Wurlitzer Electric Piano / First Steps
« on: November 05, 2019, 08:53:42 AM »
Hey guys! I just got my first wurly (206) and i was wondering what you guys do when you get one to get it running in tip top shape as fast as possible. I started with lubricating the action, I'm thinking about enabling the vibrato and possibly adding an effects loop next! I guess I'm not mainly looking for advice, just curious what you peeps have done.

6
Other Keyboards & Software Synths / Re: CP-70 Power supply
« on: March 19, 2019, 02:48:53 PM »
You want to buy a 18v DC power adaptor with enough current to power the piano.

The CP70b only takes 40ma so go with something higher than that. All the aftermarket supplies I see online use 500ma - 600ma so they provide more than enough power.

Does this need to be linear or can it be switching?

7
Other Keyboards & Software Synths / Sluggish cp-70 action
« on: January 05, 2019, 09:06:17 AM »
Hey guys, my cp-70 has one key that's a little on the sticky side. When I took a peak underneath it seems the hammer doesn't return quickly. Any thoughts?

8
The Fender Rhodes Electric Piano / Re: Identification
« on: December 22, 2018, 12:05:55 PM »
Is the out plate custom or is it original?
 
Its an original student piano, customised by Custom Vintage Keys. https://www.facebook.com/cvkeyboards/photos/pcb.947548978769320/947548948769323/?type=3&theater

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The Fender Rhodes Electric Piano / Identification
« on: December 21, 2018, 10:37:29 AM »
Can I get an identification on this Rhodes? Ive never seen one like this. Unless its completely custom.

10
Other Keyboards & Software Synths / Moving CP-70 in the cold
« on: November 01, 2018, 11:08:27 AM »
I am doing a gig with my CP-70 soon and I was wondering if moving it outside in the cold for a few minutes would have a detrimental effect on the tuning of it. I have seen the way that the cold destroys tunings on other stringed instruments so i just wondered if 5 minutes in the cold would wreck everything. Thanks

11
Other Keyboards & Software Synths / CP-70 Power supply
« on: September 11, 2018, 04:38:02 PM »
Hey guys. Im looking to modify a power supply to fit my CP-70. I have the coveted cp-70 2 pin xlr, the cable is just shot. Im on too tight of a budget to pay $75 for someone to have made one that I could have done myself.

12
Other Keyboards & Software Synths / Re: CP70 preamp bypass
« on: August 14, 2018, 06:54:05 PM »
OZDOC,
I would love to trust the engineers, however my preamp is currently nonfunctioning and I am trying to find a temporary work around until I get it fixed. That being said I wonder if I could just go through the patch out if that would be before my problem in the pre-amp, otherwise id like to hop bypass altogether until I get it functional.

13
Other Keyboards & Software Synths / CP70 preamp bypass
« on: August 06, 2018, 06:33:20 PM »
Does anyone have any experience with bypassing the pre-amp of a Yamaha CP70?

14
The Wurlitzer Electric Piano / Signal too hot for pedals
« on: April 11, 2018, 09:42:57 AM »
Hey guys!

I read somewhere(can't remember where) online that wurlys signal is too hot for guitar effects pedals and that it will burn them out.
Whats the truth to this? How can you correct it?

Thanks!

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