Tam Valley Depot

We now stock Tam Valley Depot's range of DCC products. These include the Frog Juicer (automatically changes polarity on point frog), servo drivers points, stationary decoders and LED decoders.

DCC Polarity Reversal and Power Routing (Frog Juicers)

The Frog Juicer frog!

The DCC Dual Frog Juicer/Auto-Reverser/Circuit Breaker

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DCC Accessories

Code Description Image Price A$
TVDOCTIII OCT030 Octopus III

Board has 8 positions for driving servos between two positions and 8 inputs for fascia controllers (see below) or toggle switches. Octopus III uses the remote board (below) to align the servos and has automated endpoint adjustment as well as full manual control. Ideal for use with miniature servos and the servo mounting kit (available here). Power with 5-24V DC (do not use AC). Octopus III has a built-in switching power supply for high efficiency and greater range. Board is 2.5" x 1.9" in size.

OCT030 Octopus III $45.00
TVDRAOCTIII OCT031 Remote Aligner for Octopus III

Used with the Octopus III for alignment of servos (cannot be used with the Octopus II). Just one of these needed for all of your Octopus IIIs. Comes with a 7' cable which allows you to stand next to your turnout while aligning the servo - no more acrobatics and hanging upside down below the layout! The cable is a 6-pin straight data cable (not a phone type cable). Board is 2.7" x 1.7" in size.

OCT031 Remote Aligner for Octopus III $17.00
TVDDCCOCTIII OCD001 Octocoder- Stationary DCC Decoder for Octopus III

You can control your Octopus II or III with the Octocoder, a simple stationary DCC decoder. The board provides connections os you can also connect fascia controllers and LEDs for local control. (Will not work with toggle switches however.) No CVs to program - just put on the address junper and issue a turnout command from your throttle to set the address block. Uses 8 consecutive DCC addresses.

OCD001 Octocoder- Stationary DCC Decoder for Octopus III $27.00
TVDFASCONTKIT FCB011 Fascia Controller Kit

Contains PC boards and parts needed to build 4 fascia controllers. The resistors are pre-mounted. An advantage of building from the kit is that you can substitute your own color LEDS (single color only - bicolors will not work in this version). Requires 4 3-wire servo extension cords to hook up to the Octopus II main board. Two kits are needed to fully control 8 servos.

FCB011 Fascia Controller Kit $9.00
TVDFASCONT FCB010 Fascia Controller for use with Quad/Octopus II/Octopus III

This fully assembled and ready to use controller mounts on the fascia or control panel. Use for manual throwing of your switches and also provides feedback on servo position when used with DCC/signals. Has 2 yellow LEDs. Mounts using a #4 self-tapping screw (included). Comes with a 12" cord attached. 3-wire servo extensions can be used to extend the reach. By using a "Y" cable, two controllers can be added to one port to provide two control points for one turnout. Controller is 0.6 x 0.8 " in size.

FCB010 Fascia Controller for use with Quad/Octopus II/Octopus III $2.90
TVDFASCONTBIC FCB012 Bicolor Fascia Controller for SwitchWright/Quad/QuadLN/Octopus II/Octopus III

This controller is identical to the above controller except that it has two Red/Green Bicolor LEDs instead of the 2 yellow LEDs. Each LED alternates between red and green so both LEDs are lit whereas in the regular yellow LED controller one LED is on at a time. The LED colors in photo are a bit washed out due to the limits of photography. Other than the LEDS it is identical to the single-color Fascia Controller.

FCB012 Bicolor Fascia Controller for SwitchWright/Quad/QuadLN/Octopus II/Octopus III $5.10
TVDFASCONTBICKIT FCB013 Bi-Color LED Fascia Controller Kit

Contains PC boards and parts needed to build 4 fascia controllers with bi-color LEDs (3-lead type). The resistors and transistors are pre-mounted and the board tested. An advantage of building from the kit is that you can mount the components on a control panel anywhere you wish and then wire them back to the PC board. Requires four 3-wire servo extension cords to hook up to the Quad/Octopus main board.

FCB013 Bi-Color LED Fascia Controller Kit $13.50
TVDRDPDTRELAY DY5001 Remote DPDT Relay with Y Cable for Controller Socket

A DPDT relay for using on a Y cable in conjunction with a fascia controller. (Will also work without the fascia controller.) Has a 6-pin connector block to simplify wiring. High-sensitivity coil requires 30 mA. The contacts are rated 1 Amp at 24VDC. [Can also be used without the Octopus - red wire, 5V, black wire, ground, white wire, signal (0V = OFF, greater than 1.4V is ON).] Comes with a 12" Y cable - extra length can be added with servo extensions.

DY5001 Remote DPDT Relay with Y Cable for Controller Socket $7.90
TVDFROGJ1 MFJ003U DCC Mono Frog Juicer (polarity reverser for frogs)

For all DCC systems including NCE PowerCab. This board is an automatic polarity reverser for a single frog. Setup is simple, connect two wires to the DCC bus and one wire to a frog. The frog should be fully isolated. When a train crosses the turnout and the frog is the wrong polarity, the frog juicer will reverse the polarity so quickly that the train and the rest of the DCC system will never notice. Should not be used with boosters over 5 Amps. See the Dual Frog Juicer for 10 Amp boosters.

MFJ003U DCC Mono Frog Juicer (polarity reverser for frogs) $22.00
TVDFROGJ2 DFJ003U DCC Dual Frog Juicer/Auto-Reverser/Circuit Breaker

For all DCC systems including NCE PowerCab. This board can be configured to use as an automatic polarity reverser for two frogs, a reversing loop, a turntable, a wye, or a crossing. It can also be used as a circuit breaker to control a power district (with the bonus it will reverse polarity if needed). It uses the same basic design as the hex frog juicer but has 33 Amp transistors so it can be used with multi-unit lashups and 10 Amp boosters. Setup is simple, connect the input to the DCC track bus, and connect the output wires either to two frogs or two rails. A jumper controls whether the two outputs act as a pair (i.e. an auto-reverser) or independently (i.e. a pair of frog juicers). Another pair of jumpers controls the current set point for switching, either 2 Amps or 4 Amps. When used for frogs or crossings generally 2 Amps work best and for an auto-reversing application, 4 Amps generally works best.

DFJ003U DCC Dual Frog Juicer/Auto-Reverser/Circuit Breaker $38.50
TVDFROGJ6 HFJ003U DCC Hex Frog Juicer (for 6 points)

For DCC systems 2 Amps to 8 Amps including NCE PowerCab. This board can be configured to use as an automatic polarity reverser for six frogs, or a reverser for one to three reversing loops, turntables, wyes, or crossings. Setup is simple, connect the input to the DCC track bus, and connect the output wires either to six frogs or rails. Two jumper controls whether the two, four or six outputs act as pairs (i.e. an auto-reverser) or independently (i.e. a pair of frog juicer). Should not be used with boosters over 10 Amps. See the Dual Frog Juicer for 10 Amp boosters.

HFJ003U DCC Hex Frog Juicer (for 6 points) $101.50
TVDDCCBOOST DAB002 5 Amp Trip / 3 A Continuous Duty DCC Booster Board

DCC Booster board without the power supply. These boards can be used to make locomotive Power Districts or an Accessory District with a shared power supply. A jumper is used to set either Accessory Mode or Power District Mode. Each board can supply up to 3 Amps continuous duty and 5 Amp peak with a suitable power supply. These boards work very nicely with the Hex Frog Juicer.Max power input voltage: 40VPower Connector: 5.5 mm (outer)/ 2.1 mm (inner) barrel plug, center positiveDCC input: optically isolated, 5-24 VoltsDCC Connectors: Screw blocksMax output: 5 Amps for short periods, 3 Amps continuousShort Trip Point: 5.6 AmpsShort Trip Off Time: 1 microsecondShort Trip Recovery Time: 200 microsecondsNo Auto-reverseBoard Size: 3" x 2.5" (76mm x 64 mm)

DAB002 5 Amp Trip / 3 A Continuous Duty DCC Booster Board $65.00
TVDD3WAYII DTW101 Dual 3-way II

The dual 3-way can be used to control 2 servos with 3 positions each. Typical uses are semaphores and 3-way stub switches. Comes with 2 I/O connectors that are used to connect to your signal system and/or indicator LEDs (or just use DCC).

DTW101 Dual 3-way II $40.00
TVDFCMOUNT MFC001 Mount for Fascia Controller

Made of precision 1/8" thick laser-cut acrylic, these mounts can be used to neatly mount your fascia controllers. Simply use a 1-3/8" hole saw to place on your fascia. The four included screws hold it securely in place and the recess keeps the button safely out of the way of bellies. The dark plastic makes the LEDs stand out. Comes as a kit that includes the 2 pieces and 4 screws. The pieces can be easily glued together with solvent designed for acrylics as MEK and other styrene glues will NOT work. Just put the pieces together and flow a small amount of solvent on with a brush. Can be spray-painted a different color or used as is. Size 1.5" x 1.5" x 1/4" deep (without parts mounted).

MFC001 Mount for Fascia Controller $4.50
TVDDPDTRB RDR001 Remote DPDT Relay Relay Board

This remote relay plugs in to the breakout daughter board (below) 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.

RDR001 Remote DPDT Relay Relay Board $7.90
TVDLEDECODER LED001 DCC Decoder for LEDs - 3 Output Lighting Decoder

This handy little decoder can be used to drive LEDs in a variety of lighting applications. It can be used to drive 3-LED signal heads. it is set up for JMRI (type Double Output). Can also be used to light a building or a 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.

LED001 DCC Decoder for LEDs - 3 Output Lighting Decoder $7.90
TVDTS TNS001 DCC Train Shuttle

Train Shuttle, includes 12 volt power supply (see below) and laser-cut acrylic front bezel by Monster Model Works. Everything you need to run a train except some track and a bit of wire.Use the Train Shuttle to automatically run a train back and forth for demos, breaking in locomotives or just for fun. Also makes a really simple way to run a DCC locomotive with its speed and direction controls.The train shuttle is a DCC command station/throttle with built-in detectors that can automatically reverse direction and simulate a station stop. It works with any locomotive with the address range 1-99. No need to program the locomotive - just take it out of the box and put it on the track. End detection - the Train Shuttle has built in current detectors that use a gap in the rail to isolate a detection section. One rail, the common rail is ungapped. The other rail uses gaps (either cut a gap or use an insulated rail joiner) to make isolated detection sections at both ends. When the train reaches the end it crosses the gap and the Train Shuttle sends it a DCC command to stop and then to reverse direction. Knobs on the front panel adjust the stop time from 0 to 60 seconds. Station Stop - The Train Shuttle can also simulate a station stop by putting gaps in the middle. When the train crosses in to this section, the Train Shuttle sends the DCC commands to stop, waits for the delay time set by a knob, and then proceeds on in the same direction as before.Accessory Commands - the Train Shuttle sends DCC accessory commands (also called stationary decoder commands or switch commands) when the ends are reached. This allows you to throw turnouts so you can have a more complicated pattern. For instance with a single turnout you can make a fork arrangement and have the train alternate which fork it goes down.SpecificationsInput voltage: 8V - 15V Max (do NOT exceed)Power Jack: 5.5mm/2.1mmOutput Current: 1.5 Amp Max (will operate a frog juicer)Current Detection Limit: 3 mADCC: Addresses 1-99, 28 speed stepsDelay times: 0-60 seconds adjustableIncluded Power Supply12V 1Amp output, 100-240 VAC input switching power supply with interchangable AC input plugs for US/UK/Australia/Scandanavia. Perfect for a traveling demo layout.

TNS001 DCC Train Shuttle $100.00
TVDTSPA TNS002 DCC Train Shuttle 16 bit Address Programming Adaptor

DCC Train Shuttle 16-bit Address Programming Adapter (Optional). The Train Shuttle works as it comes with short, 2-digit addresses in the range 1-99 as it comes.  It will also work decoders that have a consist address in this range. Almost all locomotives come programmed to the default short address 3 and will work straight away with Train Shuttle. This programming adapter allows the programming of up to 16 long or 4-digit addresses in to the Train Shuttle.  In some cases you may it more expedient to add 4-digit addresses with this adapter than to reprogram the locomotive decoder. The adapter plugs in to a 3-pin plug on the back.  You can then use the 4 dials to set a 4-digit address.  The address will be saved when the power is turned off.

TNS002 DCC Train Shuttle 16 bit Address Programming Adaptor $59.00
TVDMSSDFC MSS002 Micro Singlet Servo Decoder with Fascia Controller

Includes the micro singlet, with a Red/Green Bi-color Fascia Controller. Power is provided from the DCC bus. Each unit requires about 0.15 A when moving points and about .025 A when resting.

MSS002 Micro Singlet Servo Decoder with Fascia Controller $24.00
TVDMSSD MSS001 Micro Singlet Servo Decoder - Board Only

Just the Micro Singlet board. Requires a servo. For manual operation a pushbutton or a fascia controller is needed. Each unit requires about 0.15 A when moving points and about .025 A when resting.

MSS001 Micro Singlet Servo Decoder $19.00
TVDQPAPCD QPC002 Quad Pic Auto Programmable Servo Decoder

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.

QPC002 Quad Pic Auto Programmable Servo Decoder $69.00
TVDRRDB RDB001 Remote Relay Daughter Board

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.

RDB001 Remote Relay Daughter Board $4.95
TVDRSSPDTRB RSR001 Remote SPDT 10A Relay Board

Remote SPDT 10 A Relay Board.This remote relay plugs in to the breakout daughter board (below) 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.Does not work with Micro Singlet. For Singlet II only.

RSR001 Remote SPDT 10A Relay Board $13.00
TVDSRX112D SRX112 12" Servo Extension (x10)

12" (30cm) Servo Extension Cable (Set of 10). 3-wire servo extension cable 12" (30cm) long, 24 AWG stranded wire.  Added to the 12" cord that comes with most standard size servos you can power a switch up to 2 feet from an Octopus or Quad Servo board. Set of 10 cables.

SRX112 12 $25.00
TVDSRX140D SRX140 40" Servo Extension (x10)

Set of 10 40" (100cm) Servo Extension Cable. 24 AWG 3-wire servo extension cable. Set of 10 40" extension cables.

SRX140 40 $49.50
TVDSRC001D SRC001 Servo Centreing Tool

Use this handy portable tool to keep your servos centered while you mount them under the layout. The tool consists of a battery box connected to a small circuit board that continuously puts out a centering signal for the servo (1.5 ms pulse). Keeping your servos porperly centered while mounting is the key to making the servos work best. The battery box has an on/off switch to save your batteries when not in use. Everyone using servos for turnouts needs one of these.Requires 3 AA batteries.

SRC001 Servo Centreing Tool $19.00
TVDQLN002 QLN002 Quad LN Remote Aligner

Used with the Octopus III for alignment of servos (cannot be used with the Octopus II). Just one of these needed for all of your Octopus IIIs. Comes with a 7' cable which allows you to stand next to your turnout while aligning the servo - no more acrobatics and hanging upside down below the layout! The cable is a 6-pin straight data cable (not a phone type cable). Board is 2.7" x 1.7" in size.

QLN002 Quad LN Remote Aligner $17.00