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Sovtek 12AX7 / ECC83 LPS

Very linear working 12AX7 / ECC83 with long anode plates and spiral heating, which makes the tube less sensitive to interference from AC heating.
We recommend this tube for audio and high-end amps as well as for "modern" Fender amps with more overdrive, but also as an input tube in old Marshall JCM800s.

Note: Tubes equipped with long plates are commonly associated with a "warmer" or "richer" sound, whereas those with shorter plates tend to deliver a "tighter sound". However, tubes featuring long plates exhibit increased sensitivity to vibrations and mechanical disturbances, rendering them less ideal for critical applications.

Files

Datasheet

Manufacturer

Herstellerinformationen | Manufacturer Information

New Sensor Corporation, 32-33 47th Avenue, Long Island City, NY 11101, USA

EU-Wirtschaftsakteur | EU Economic Operator
Tube-Town GmbH, Rumbergring 37, 66969 Lemberg, Germany, info@tube-town.de

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Electrical Characteristics

Total Resistance Tolerance: +/- 20%
Rated Power
- B/Lin Taper: 0,125 W
- A/Log Taper: 0,1 W
Max. Operating Voltage
- B/Lin Taper: 150 V AC
- A/Log Taper: 150V AC
Noise: 47 mV max.
Insulation Resistance: 500 V DC 1000MOhm
Withstand Voltage: 1 minute 500 V AC
Rotational Life: 15000 Cycles

Mechanical Characteristics

Shaft Diameter 6 mm
Shaft Type: Split Shaft
Shaft Length: ca. 9 mm
Bushing Length: 6,5 mm
Body Diameter: 16 mm
Connectors: Solder Lugs
Total Rotational Angle: 300° +/- 5°
Rotational Torque: 30~200gf.cm
Solder Heat Resistance: 300°C, 3 S

Material

Shaft: Cast Iron (Aluminium Zinc)
Bushing Material: Cast Iron

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Electrical Characteristics

Total Resistance Tolerance: +/- 20%
Rated Power
- B/Lin Taper: 0,125 W
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Max. Operating Voltage
- B/Lin Taper: 150 V AC
- A/Log Taper: 150V AC
Noise: 47 mV max.
Insulation Resistance: 500 V DC 1000MOhm
Withstand Voltage: 1 minute 500 V AC
Rotational Life: 15000 Cycles

Mechanical Characteristics

Shaft Diameter 6 mm
Shaft Type: Split Shaft
Shaft Length: ca. 9 mm
Bushing Length: 6,5 mm
Body Diameter: 16 mm
Connectors: Solder Lugs
Total Rotational Angle: 300° +/- 5°
Rotational Torque: 30~200gf.cm
Solder Heat Resistance: 300°C, 3 S

Material

Shaft: Cast Iron (Aluminium Zinc)
Bushing Material: Cast Iron

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1 pole / 3 position
Solder lugs
Shaft Diameter 6 mm, D-Shaft
Rating: 250 VAC 6(4) A
Contact Resistance: 100MOhm Max
Dielectric Intensity:
- 1500VAC / 5S for terminal and terminal
- 3000VAC / 5s for terminal and ground
Withstand Voltage: 1500VAC / min
Operating Temperature: -25~85°C
Insulation Resistance: 500 VDC, 100MOhm Min
Electrical Life: 10,000 cycles
Housing material: PA66
Ø: 22 mm
h: 17,0 mm
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Epoxy end fill meets UL94V-0
Non inductively wound
Flame retardant outer wrap meets UL510
Non polar

Specifications:

Operating Tempeature Range: –55 ºC to +125 ºC (derate linearly to 50% rated voltage at 125 ºC)
Dielectric Withstand Voltage: .6 x rated voltage for 2 s @ +25 ºC ±5 ºC
Dissipation Factor (DF): tgd x 10–4 at +25 ºC ±5 ºC
Insulation Resistance: 10,000 MO x µF, 30,000 MO Min.
Self Inductance: 1 nH max. per 1 mm lead and body length
Life Test: 1000 hrs @ 85 ºC 1.25 x Vn
Damp Heat Test: 95% RH @ +45 ºC for 21 days
Soldering: 260 ºC ±5 ºC for 10 s ±1 s
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Flame retardant outer wrap meets UL510
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Specifications:

Operating Tempeature Range: –55 ºC to +125 ºC (derate linearly to 50% rated voltage at 125 ºC)
Dielectric Withstand Voltage: .6 x rated voltage for 2 s @ +25 ºC ±5 ºC
Dissipation Factor (DF): tgd x 10–4 at +25 ºC ±5 ºC
Insulation Resistance: 10,000 MO x µF, 30,000 MO Min.
Self Inductance: 1 nH max. per 1 mm lead and body length
Life Test: 1000 hrs @ 85 ºC 1.25 x Vn
Damp Heat Test: 95% RH @ +45 ºC for 21 days
Soldering: 260 ºC ±5 ºC for 10 s ±1 s
Long Term Storage Stability: ?C/C = ±3% after 2 years

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