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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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Giddings & Lewis 502-03055-00 Servo Board

$999.00 USD

Sale Sold out

ConditionSurplus - Untested MPN502-03055-00 Stock #0226-00545

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 5.0 lbs

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This listing is for a used Giddings and Lewis Servo Board, part number 502-03055-00, serial number C90735, date code 439708. The OEM nameplate label notes this version is replaced by the 502-03055-01 revision. The board is manufactured by Giddings and Lewis Electronics and carries the Giddings and Lewis logo on the PCB surface.

The 502-03055-00 is a densely populated multi-channel analog servo control board. Labeled servo channels on the board silkscreen include SERVO CHAN B, SERVO CHAN C, and SERVO CHAN D, with D/A OUT and TP3 test point positions. Key components visible include a DAC80Z precision digital-to-analog converter, an MNDAC80-CBI-V hybrid DAC module, NE5532 and NE5533 dual op-amps, DG508ACJ 8-channel analog multiplexers, TLO82 JFET-input op-amps, LM339 quad comparators, 74LS-series logic ICs (LS240, LS374, LS573, LS640, LS138, LS123, LS20, LS08, LS174, LS00, LS164), MC74F32NDS and MC74F174NDS fast logic, and a Y-1 16.384 MHz crystal oscillator. The board uses yellow tantalum capacitors throughout and carries resistor networks at RN1-2 position. Edge connector P1 and labeled connectors provide backplane and external signal connections.

This board is a discontinued, obsolete component available only through the industrial surplus market. Repaired units are actively listed at significantly higher prices.

Stock # 0226-545

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.