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#1
Rhodes Piano's / [Tech-Tip] Removing hammer-cam...
Last post by Administrator - Mar 28, 2024, 02:12 PM
Be sure to do this work in a well ventilated area..

Materials needed:
• 90% iso alcohol
• CRC Non-Flammable Brakleen
• Microfiber towel
• Needle bottle or syringe

#2
LED On/Off pilot light install for Warneck Research Wurlitzer amplifiers
Models: EP-200, 200A & 140X

Difficulty level: basic soldering and hand tool skills required

Tools required:
•  Soldering iron (recommended temperature controlled!)
• .032" diameter 63/37 Solder (included with kit)
•  Diagonal wire cutters
•  13/64" drill bit & hand drill
•  Optional: de-burring tool, larger bit or file to de-burr thru-hold

For the technically inclined materials
• 5MM LED
• 5.6-10K ½ watt resistor (less resistance = brighter led)
• 22-24ga stranded hookup cable
Or if you've purchased a pre-assembled kit, proceed as follows
Instructions:
1.   Locate "Varivib" section on amplifier circuit board
2.   Solder Black wire to black solder point
3.   Solder Resistor/Red wire to red on varivib
(Note: don't bridge or jump pads with solder blobs!!
soldering iron temperature should not exceed 700° Fahrenheit, or 375°C)
4.   Remove Neon bulb, cut brown wires from terminal strip with fuse.
(be careful not to cut fuse or transformer leads)

5.   Drill 13/64" hole

6.   Hot melt or crazy glue more than ample to hold LED inplace.

Model EP200 solder points



Model EP200A solder points


#4
All things pedals / MUpower installation info & Vi...
Last post by Administrator - Dec 14, 2023, 08:52 PM
The MUpower dc adapter is designed for Musitronics Mutron III pedals only. This is not compatible with Haz Labs Mutron III+ or later era ARP Produced Mutron III pedals. HazLabs units run on 24VDC and the Later ARP Mu-pedals are AC powered.

Current consumption is less than 50mA, Power requirement is 9VDC, CENTER NEGATIVE.
It is advised to directly power this pedal on a single adapter or single port directly on a multi-tapped supply ie:Strymon, Cioks, Voodoo labs.
Mupower requires direct power and ground to operate ideally.  Note some brands of 2.1mm splitter y-cables lift ground on one side, so if your using daisy chains and or y-splitters this may potentially be the source of no-operation.


Step-by-step Installation

Tools Required:
• #2 Phillips screwdriver
• #1 Phillips screwdriver, or larger jewelers
• Wire-stripper with 22ga size
• Small diagonal cutters

Difficulty level: EASY

Remove the screws front, back, top, note the 2 screws on the rear near the old power jack stay.
With all screws removed, you can separate the chassis, if your Mutron III still has its battery door feed that thru the lower chassis half.

Take the diagonal cutters, and snip the RED,WHITE & BLACK wires on the old power jack.
Strip roughly 1/8" of jacketing back, twist each stripped wire tightly so there are no splinters that may make contact where it shouldnt.

Insert wires into terminal block as follows
RED wire to +9
BLACK wire to -9
WHITE wire to ground

mount the MUpower with the supplied screws, this can be a little tricky, its best to pop both screws in, slip the cover piece over and while holding the screw heads in place the dc-adapter board over, and quickly get the screwdriver on there and tighten up.

reassemble the pedal.
Its advised remove batteries when powering with DC.


FOR BATTERY OPERATION - please contact support@retrolinear.com


Some Mutron III tips for ideal operation:
• Clean pots, switches with CRC 2-26 cleaner/lube, use a light amount - do not overspray
• Make sure the Rotary switch and control pots are tightly mounted to the chassis (1/2" SOCKET)
• Make sure the output/input jacks are also tight, there should be a lockwasher inside, flat on the outside.
• All missing hardware should be replaced, especially the large #8 rear screw which supports the PCB.


#6
Rhodes Piano's / Rhodes MKI 73 & 88 Stage Piano...
Last post by Administrator - Dec 08, 2023, 02:52 PM
The "ideal" wiring harness for all Rhodes MK.I 73 & 88 stage pianos.
This tone-stack provides a broader response in tone.
View
#7
Complete install video including: EP200 Amplifier, shielding tube kit, VariVib Variable speed vibrato and WR-OB1 output board.  For additional tech support please email: support@retrolinear.com

Youtube




Downloads:
Step-by-step directions (pdf)



ColorWiring Diagram (pdf)