Tam Valley Depot

Tam Valley Depot has announced that effective immediatley most Tam Valley products will no longer be avaiable.

Those products available are listed opposite

Servo Mount - Available in kit form or assembled.

This servo mount made from 3mm acrylic is available in kit form or assembled. Photo shows mount, servo and micro-switch mounted below point on a layout.

See Servo and Servo Mounts.

Servo Extension and "Y" Cables

Extension and "Y" cables are also available for use with Tam Valley Servo Drivers (such as the Octopus III) - see Servo Cables.

DCC Polarity Reversal and Power Routing (Frog Juicers)

The Frog Juicer frog!

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

Can't visit the shop? Why not mail order?

We Specialise in Mail Order within Australia and throughout the World

For details of costs, insurance, payment see How to Buy or phone 1300 BRUNEL (278635).

Frog Juicers and Booster

Code Description Image Price A$
MFJ003U 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) $33.00
DFJ003U 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 $65.00
HFJ003U 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) $135.00
DAB002 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 $89.00