GU-56
Electronic Tube
Description
Generator triode GU-56 is designed to generate oscillations and amplify power in stationary industrial generators for high-frequency heating and other radio engineering devices at frequencies up to 45 MHz.
The design is glass-to-metal with annular mesh and cathode leads.
Cathode - tungsten thoriated carbide direct heating.
Working position - vertical, anode down.
Cooling - forced air.
GU-56: identification and purpose
GU-56 is classified as a Electronic Tube and provides amplification, generation, rectification, switching or indication according to the circuit of the specific equipment. Selection requires comparison of the complete designation, electrical ratings, construction, base or connector, mounting arrangement and passport data. Matching opening characters or a similar appearance do not establish identical characteristics or interchangeability.
A family name describes the general equipment class but does not replace the documentation for the exact execution. A suffix, additional digit, colour, bulb, base or housing variant can identify a material difference. GU-56 should therefore be ordered by the product marking rather than by appearance alone.
Function within the equipment
The item provides amplification, generation, rectification, switching or indication according to the circuit of the specific equipment. Its exact operating mode is defined by the circuit and associated equipment. For lighting products, verify voltage, power, luminous output, colour, optical arrangement and fixture type. For electronic tubes and display devices, verify electrode function, heater ratings, limiting voltages and currents, cooling, pin allocation and operating range.
Numerical data retained from the original catalogue record are shown in Technical Details. Those values must be compared with the passport for the actual item. Aircraft types and systems are not assigned by analogy when reliable documentation is unavailable.
Selection and compatibility checks
Before replacement, compare the primary and alternative designations, rated voltage or current, power, base, dimensions, mass, contact arrangement, cooling requirements and environmental limits where documented. Exterior lighting units may also require confirmation of filter colour, beam direction and approved installation position.
Related members of a series may use different electrical modes, optical characteristics or mechanical interfaces. They must not be treated as interchangeable without an explicit documentary reference. General background on this equipment class is available under Electronic Tube.
Incoming inspection and installation
Incoming inspection includes checking the marking and supporting records and examining the housing or envelope, base, contacts, connectors, mounting points, reflector, filter and seals as applicable. Electrical measurements, photometric checks or electronic-tube bench testing must follow an approved procedure.
Install the item only in the intended fixture or equipment while observing polarity, supply mode, cooling and electrical-safety requirements. Complete the functional checks prescribed after installation. External integrity alone does not demonstrate serviceability.
Related catalogue positions
Functionally related products include GU-53B, GU-58B, GU-50, GU-61P. They are grouped by class and family for catalogue navigation and do not imply interchangeability. More items are listed in the Landing Lights, Lamps & Beacons category.
Enquiry information
An enquiry for GU-56 should state the exact designation, quantity, required condition, marking photograph, delivery scope and required document set. When available, include the designation of the item and equipment being replaced. Price, actual availability, lead time and condition of the offered item are confirmed separately.
Final selection must use the passport, illustrated parts catalogue or approved technical documentation. Missing ratings must not be inferred from a neighboring execution; request them together with a nameplate photograph and information about the installation system.
Technical details
Product Type: Electronic Tube
Primary Designation: GU-56
Alternative Designations: GU-56; GU 56; ГУ-56
Function: provides amplification, generation, rectification, switching or indication according to the circuit of the specific equipment
Selection Basis: Exact designation, execution, marking and documentation for the specific equipment
Application: Only as supported by the passport, illustrated parts catalogue or approved installation documentation
Interchangeability: Not established by a related designation, matching base, housing or appearance alone
Inspection: Verify electrical ratings, contacts or connector, mounting, construction and required operating mode
Enquiry Data: Designation, quantity, condition, marking photograph, delivery scope and required documents
Documentation: Product passport and approved operating or repair documentation
Category: Landing Lights, Lamps & Beacons
All specificationsCollapse specifications
Retained Technical Data:
1. Filament current 24 ± 2.5 A.
2. Anode current (at Uc=200 V), not less than 1.5 A.
3. Anode current (at Ua=3 kV, Uc1=0), not less than 0.8 A.
4. The steepness of the characteristic (at Ia=1.5 and 1 A) 8 ± 2 mA/V.
5. Gain (at Ua=0.3 and 1 kV and Ia=1 A) 15 ± 4.
6. The closing voltage is negative (at Ua=3 kV), not more than 150 V.
7. Vibrational power at a frequency of 40 MHz in the self-excitation mode, not less than 1 kW.
8. Weight no more than 4 kg.
9. Interelectrode capacitances:
– input, no more than 30 pF,
– output, no more than 0.8 pF,
– pass-through, no more than 20 pF.
10. Durability, not less than 1000 hours.
11. Heating voltage 6.0 – 6.6 V.
12. Power dissipated by the anode 700 W.
13. Operating ambient temperature range from -60 to +70 C.
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms