Tam Valley Depot

These products are not kept in stock but will be made to order which will take up to two weeks.  If you mix these with the other products that are in normally in stock it will delay the whole order.  

These are older products mostly that have low demand.

Quad-Pic Servo DCC Accesory Decoder

Use to control four turnouts using model R/C style servos.  Servos are easily mounted under the turnout and provide a reliable and inexpensive method to switch points.  the Quad is very versatile, you can move the points by DCC commands from your throttle, use buttons on the fascia, control from a signal system or any combination of the 4.  LEDs can be hooked up to indicate the direction of throw. 

DCC - The unit can be completely programmed from the buttons and LED indicators on the board or you can use programming on the main to set the CVs.  The DCC address is easily programmed by setting a jumper and then issuing the desired accessory address from your throttle.  This avoids the confusion of how DCC Accessory addresses are stored in the CVs.

Power - The board has a beefed-up and separate regulator circuit for the servos to eliminate power loss to the microprocessor.  The best way to power the board for DCC is to use the specially designed DCC Accessory booster which can power up to 6 Quad-Pics. For DC use any power supply from 7.5-18V AC or DC can be used.  It is also possible to supply 5V power directly to the servos.  The servos are completely opto-isolated to prevent ground loops.

Expansion - The new design has provisions for adding daughter boards to expand the capabilities.  One daughter card has relays for switching the frog power or controlling some other accessory.  Another daughter board lets you add on stall-machines (such as the Tortoise™) - you can still use the servos at the same time.

Signals - Inputs for signal systems have been added.  An expansion board that provides full opto-isolation of the signals is available soon.

Download the Quad Servo Driver Manual

Quad-Pic Auto Programmable Servo Decoder

Quad servo driver and DCC decoder board.  Updated version with a 2A switching power supply and auto-alignment of the servo positions.

4 Relay Daughter Board
Add this board to the Quad-Pic by plugging it into the expansion port and you have 4 relays for switching power (1 Amp per relay) to the turnout frogs.  Or use it as a general purpose relay to switch power to another accessory using DCC or the manual controllers.  Comes with 4 connectors with a 3-wire cable for connecting up to the frog and track.

Remote Relay Daughter Board
Add this board to the Quad-Pic by plugging it into the expansion port and you have 4 ports for plugging in the remote relay board above.

Remote DPDT Relay Board (fits Remote Relay Daughter Board)
This remote relay plugs in to the breakout daughter board and gives you two circuits for powering frogs, signals and so forth.  Board has a 12V, 1A hi-sensitivity relay that draws just 13 mA, relay drive circuitry, and a terminal block for easy wiring.  Can also be used without the Quad - red wire, 12V, black wire, ground, white wire, signal (0V = OFF, greater than 1.4V is ON).  Comes with a 12" extension cord - extra length can be added with servo extensions.

Remote SPDT 10 A Relay Board (fits Remote Relay Daughter Board)
This remote relay plugs in to the breakout daughter board and gives you one high-power circuit for powering frogs, signals and so forth.  Board has a 12V, 10A hi-sensitivity relay that draws just 30 mA, relay drive circuitry, and a terminal block for easy wiring.  Can also be used without the Quad - red wire, 12V, black wire, ground, white wire, signal (0V = OFF, greater than 1.4V is ON).  Comes with a 12" extension cord - extra length can be added with servo extensions.

LEDecoder - 3 Output Lighting Decoder

This handy little DCC decoder can be used to drive LEDs in a variety of lighting applications.  It can be used to drive 3-LED signal heads or individual LEDs.  No external resistors are needed as they are on the board. You can control the relative brightness of the LEDs with CVs as well the turn on and off rates. it is set up for JMRI - type Double Output.  Can also be used to light a building or a passenger car.  With the flicker function it can imitate a flickering light bulb, a welding arc or a campfire.  Although the outputs are marked R Y G for ease of wiring to a signal head, any color LED can be used.  In addition there is a mode for driving a 2-lead bi-color LED.

The decoder uses 2 consecutive DCC addresses - one controls the R output and the other controls the G output.  If both are on then the Y output is lit.

You can read more in the manual.

LEDecoder - 3 Output Accessory Decoder for LEDs

This handy little lighting decoder has numerous uses.  It uses 2 DCC addresses and has built-in resistors.  Can be used with JMRI for signaling.  Can also be used for DCC controlled lighting of buildings and passenger cars.  The flicker function imitates arc welding, flickering lights and fires. Size: 1.5" x 1.0".

Turtle - Accessory Decoder for Stallmotor Switch Machines (Tortoise, MP1, SwitchMaster, etc) with Speed Control and Local Lockout

This item includes board and mounting kit. For local control you will also need a Fascia Controller (this page). For connecting to a motor the options are to use the jumper wires below, your own wires soldered to the output pins, or a servo extension cable. The MP1 motor requires a 3-wire connection so the servo cable is a good option. The jumper wires connect directly to the the M1 and M2 output pins on the board. The wires can be plugged in to each other to extend the distance beyond 12". The Turtle w/ Fascia Controller and a Tortoise draws about 10 mA (0.01 A) of power.

Specifications:

• Size - 1.15" x 1.25" (29mm x 32mm)
• Max Power Supply Voltage - 20V
• Max Motor Drive Current - 1A
• Max LED Drive Current - 20mA
• Max Load Controller Port 5V pin - 100 mA

Change in lockout address - as of Aug 2017 the lockout address is the base address + 1000. Previously it was +1. The change has been made to allow easier integation with existing DCC address spaces. Consult your documentation to see which version you have.

Manual

Turtle Deluxe Package with Turtle, SNAPS, R/G Fascia Controller and wires

Everything you need to control a Tortoise including a SNAPS from Accu-Lite, a red-green fascia controller and wires for connections.