Electronic Tube
GMI-38
Price on request
Electronic Tube
Available on back-order
Description
Pulse modulator triode GMI-38 for operation in pulse modulators. Decoration - glass-metal. Cooling - natural or forced air.
GMI-38: identification and purpose
GMI-38 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. GMI-38 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 GMI-32B-1, GMI-42B, GMI-32B, GMI-46B. 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 GMI-38 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.
Before supply, confirm the electrical ratings, contact or base execution and condition of the specific item. Record these details in the enquiry and compare them with the operator documentation. Do not treat a matching housing or neighboring suffix as evidence of compatibility.
Technical Details
Product Type: Electronic Tube
Primary Designation: GMI-38
Alternative Designations: GMI-38; GMI 38; ГМИ-38
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
Retained Technical Data:
1. Filament current 3.1 ± 0.2 A.
2. Anode current in a pulse:
— at Un=26 V, not less than 20 A,
— at Un=24.2 V, not less than 17.5 A.
3. Grid current per pulse, no more than 3 A.
4. The grid locking voltage is negative (at Ua=23 kV, Ia=0.2 mA) no more than 200 V.
5. Ready time, no more than 3 minutes.
6. Durability, not less than 1000 hours.
7. Interelectrode capacitances:
– input 120 pF,
– output 20 pF,
– through passage no more than 1.2 pF.
9. Durability – not less than 1000 hours.
10. Heating voltage 24.2 – 27.8 V.
11. Lamp bulb temperature 175 C.
12. Ambient operating temperature range
from -60 to +70 С.
13. Weight – 470 g.
Payment & delivery
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.
- Description
- Technical Details
- Payment & delivery
Pulse modulator triode GMI-38 for operation in pulse modulators. Decoration - glass-metal. Cooling - natural or forced air.
GMI-38: identification and purpose
GMI-38 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. GMI-38 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 GMI-32B-1, GMI-42B, GMI-32B, GMI-46B. 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 GMI-38 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.
Before supply, confirm the electrical ratings, contact or base execution and condition of the specific item. Record these details in the enquiry and compare them with the operator documentation. Do not treat a matching housing or neighboring suffix as evidence of compatibility.
Product Type: Electronic Tube
Primary Designation: GMI-38
Alternative Designations: GMI-38; GMI 38; ГМИ-38
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
Retained Technical Data:
1. Filament current 3.1 ± 0.2 A.
2. Anode current in a pulse:
— at Un=26 V, not less than 20 A,
— at Un=24.2 V, not less than 17.5 A.
3. Grid current per pulse, no more than 3 A.
4. The grid locking voltage is negative (at Ua=23 kV, Ia=0.2 mA) no more than 200 V.
5. Ready time, no more than 3 minutes.
6. Durability, not less than 1000 hours.
7. Interelectrode capacitances:
– input 120 pF,
– output 20 pF,
– through passage no more than 1.2 pF.
9. Durability – not less than 1000 hours.
10. Heating voltage 24.2 – 27.8 V.
11. Lamp bulb temperature 175 C.
12. Ambient operating temperature range
from -60 to +70 С.
13. Weight – 470 g.
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.