SOVIET SVETLANA 1XGMI-30 Pulse Triode Transmitting Box 6C21

( Brand: Soviet Svetlana ), ( Model: GMI-30 ), ( Modified Item: No ), ( Country/region Of Manufacture: Russian Federation ), ( Type: Vacuum Tube ), ( Manufacturer Warranty: None )

Review SOVIET SVETLANA 30 Pulse Triode Transmitting Box

The 1xGMI-30 is a remarkable piece of vintage communication technology, hailing from the Soviet Union's rich history of electronic engineering. This Svetlana Box GMI-30 is a 30MHz pulse triode transmitter, a testament to the era's engineering prowess.

The GMI-30 is a sturdy and compact device, with a robust aluminum casing that exudes a sense of durability and reliability. The device features a 30MHz pulse triode, a technology that was state-of-the-art in its time, capable of transmitting high-frequency signals with precision and efficiency.

The front panel of the GMI-30 is home to a variety of controls and indicators. There are knobs for adjusting the frequency, output power, and modulation depth, allowing for fine-tuning of the transmission. The device also features a series of LED lights that indicate the status of various functions, such as power, modulation, and carrier frequency.

The GMI-30 is a versatile device, capable of both AM and CW (Morse code) transmissions. This makes it a valuable tool for amateur radio enthusiasts, as well as for those interested in historical communication technologies.

In terms of specifications, the GMI-30 has a maximum output power of 10 watts, and can operate on frequencies between 26 and 32MHz. The device uses a 12V DC power supply, making it compatible with a wide range of power sources.

In conclusion, the 1xGMI-30 Svetlana Box GMI-30 is more than just a transmitter. It's a piece of history, a testament to the ingenuity and technical prowess of the Soviet Union's engineers, and a valuable tool for anyone with an interest in vintage communication technology.

1. Authenticity and Historical Value: This vintage GMI-30 Soviet pulse triode transmitter is a collector's item, making it a valuable addition to any vintage electronics collection.

2. High-Quality Construction: The device is built with solid, high-quality materials, ensuring durability and longevity.

3. Rich Sound Quality: The GMI-30 is known for its rich, warm sound, which can be an attractive feature for music lovers and audio enthusiasts.

4. Unique Sound Characteristics: The Soviet pulse triode technology used in the GMI-30 produces unique and distinct sound characteristics that set it apart from modern audio equipment.

1. Limited Compatibility: The GMI-30 has limited compatibility with modern audio systems and may require additional equipment to connect it to modern devices.

2. Maintenance and Repair: Vintage electronics like the GMI-30 may require more maintenance and repairs compared to modern equipment, which can be costly and time-consuming.

3. Limited Functionality: The GMI-30 is primarily a transmitter, limiting its functionality compared to modern all-in-one audio systems.

4. Power Consumption: Older devices like the GMI-30 may consume more power than modern, energy-efficient audio equipment.

The 1xGMI-30 30 SVETLANA Soviet Pulse Triode Transmitting Svetlana Box GMI-30 is a valuable collectible and offers rich, unique sound characteristics that may appeal to audio enthusiasts. However, its limited compatibility, maintenance requirements, and higher power consumption should be considered before making a purchase. If you are willing to invest in the upkeep and have a passion for vintage electronics, the GMI-30 could be a worthwhile addition to your collection.

If you are interested in the GMI-30 as a collector's item or for its unique sound characteristics, consider conducting thorough research on its maintenance requirements, compatibility with your existing audio setup, and potential repair costs. It may also be beneficial to test the device before making a purchase to ensure it meets your expectations.

Details:

15 limiting performance characteristics of Gk-71:filament voltage :18-22 anode voltage :1500 v2nd grid voltage :400 power dissipated by the anode:125 watts power 2nd grid:25 watts working frequency:20 operating temperature range: from 60 to 70 c. Weight is not more than 650main technical parameters of Gk-71:at un 20 v, u uc2 ia ma filament current: ma gain on the 1st grid relative to 2nd at i: 5 1 oscillatory power with a negative voltage 100 excitation 215 v: not less 250 oscillatory 18 and frequency MHz 200 insulation resistance between electrodes, less:20 capacitance's, pf: - grid-cathode 18 anode-cathode 17 mesh anode 0.: GMI-30 pulse glass modulator triode. 3 reverse current of the 1st grid at I ma: no more than 30 anode u v and: not less 35 ma emission 900 ma slope characteristic v, 200: 4.

Glass with a plinth. Gmi, 6C21 Soviet pulse triode transmitting Svetlana in original box new nos 1 PCs one lot it is possible to combine deliveries see the photo. Durability not less than 500 hours.

part #: gmi30 prices

• $24.69-$490.90

specifications tubesocketvintagego:

• brand: Soviet Svetlana
• model: Gmi-30
• modified item: No
• country/region of manufacture: Russian Federation
• type: Vacuum Tube
• manufacturer warranty: None

Returns tubesocketvintagego:

• policy: no returns

Shipping tubesocketvintagego:

• cost: $34.11
• type: Flat
• handling: 3 days

General tubesocketvintagego:

• in stock: Yes
• condition: Opened never used
• Vintage Parts Accessories > Valves Vacuum Tubes

Ratings:

1. excellent 04-01-21
2. dichiara le valvole matched per questo le ho acquistate non lo sono affatto, mi accusa di essere un bambino che non sa cosa acquista. Mi propone la restituzione ma io non ho il tempo e la voglia di fare una spedizione, doveva fare una inserzione veritiera, io mi sono fidato purtroppo 04-01-21
3. Thanks good product for reasonable price and fast shipping to the Netherlands 04-01-21
4. me casse les oreilles dans les tweeters crie. Dommage 04-01-21
5. Tudo ok 04-01-21

Seller tubesocketvintagego:

• rating 05-19-21: 97.0%
• # feedbacks 05-19-21: 62
• city: Europe

Payments tubesocketvintagego:

• PayPal

Offer tubesocketvintagego:

• Sold: 0
• bids: 0
• quantity: 6
• best offer: true
• Started: May 19, 2021, 5:47 am

Soviet Svetlana GMI-30 Is Similar To:

• Em-34 Svetlana 4 6e5s Ussr Soviet (43.5% similar) 4 pieces brand new nos 6E5S USSR Soviet EM-34 6E5C 6E5 6E5G 6G5G tube ague magic eye Svetlana thanks...(February 21st, 2017)
• 6s33s-v 6 33 Soviet Ulyanov Audio Triode Power Vacuum Pcs (40.7% similar) Departure from Ukraine. Designed to work as a control lamp in electronic voltage stabilizers. 6S33S-BPOWERFUL glass triode with increased reliability and mechanical strength. Weight no more than 200 new in original packaging, different years of manufacture. 6S33S-V allaying audio triode power ...(January 13th, 2021)
• 10j12s Svetlana The Same Appearence With Soviet Vintage Valves Rare (38.1% similar) Extra super rare. 2PCS TO-1 Svetlana the same appearance with Soviet vintage valves, extra rare 2 tubes in one lot this tube is very even on internet...(April 12th, 2021)
• 6j9p Soviet Vintage Pentode Tubes New Old Stock Same Date (37.9% similar) 5 ma cutoff voltage of the electron current first grid is not more than -1. Delivery PRICES:0-250 grams pf passage capacity no more than. We combine lots to save you money on delivery. Durability not less than 5000 hours. Any questions. Designed for broadband RF voltage amplification. 15 m ...(June 6th, 2021)
• 6e5p Reflector Audiophile Tetrode Tube Soviet Russia New In Box (31.1% similar) 25X 6E5P audiophile tutored tube reflector Soviet russia 1970 S new in box name: analogue: -quantity: 25PCS per lot manufacturer: factory condition: nos from old stock, never used, original boxes date of manufacture: 1970 S all the tubes are manufactured union and can have a quality mark other ...(September 11th, 2021)
• Soviet Iv-16 X 2 Nixie Tube Miniature Numitron New Nos Usa Seller (37.1% similar) Brightness - 3000 CD/m. Sincerely, m.s. Emitting color yellow. Segment voltage - 3.15 v max 4.5. New old stock nos. All this was changed in one moment. Qty - 1 pair 2 tubes in set. From the owner. Segment current - 19,5 ma...(November 13th, 2023)
• Soviet Gu-5b Gu5b Triode Tube 3.5kw Slightly Used Working See Tesla Coil In Operation (37.5% similar) Ideal for enthusiasts and collectors alike, the GU-5B is a testament to timeless engineering. Whether for restoration or experimentation, this tube is a versatile component that promises to enhance your vintage audio collection. Explore the potential of vintage electronics with Soviet GU-5B triode ...(May 9th, 2025)
• Soviet Gi-6b Rf Power Vacuum Tube Military Ceramic Transmitting Untested (44.3% similar) Appears unused this may actually be nos-new old stock unsure see pictures. Sold as is as shown in photos. Untested due to lack of proper equipment. No cracks, chips or visible damage. Vintage Soviet GI-6B ceramic metal RF power vacuum tube, mfg. Please stop by again, as I continue to list items from...(December 17th, 2025)