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FOR SALE lot of 1 pc. ALPHA BETA AND GAMMA Pancake Geiger Counter Tube SBT-13 analog of SI8B

All tubes are new, may have some scratches.

Parcel will be well packed and shipped by air mail with tracking number, shipping usually takes 12-21 days, depends on your location.

If you need more tubes than listed or other type of devices please send me a message.

SBT-13 Geiger Counter Tube Technical Specifications:

🔬 Description

The SBT-13 is a sensitive beta/gamma Geiger tube with a stable plateau, low intrinsic background, and reliable operation over a wide voltage range.
All tubes are individually tested and confirmed working, ensuring consistent performance.

⚡ Technical Specifications

Parameter Value
Working Voltage 390 – 420 V
Recommended Operating Voltage 400 V
Plateau Length ≥ 100 V
Plateau Slope ≤ 0.2 % / V
Recommended Load Resistor 5.1 MΩ
Tube Capacitance 10 pF

Parameter Value
Radiation Detected Beta / Gamma
Maximum Counting Rate ~10,000 pulses/min
Intrinsic Background ≤ 1.5 pulses/sec
Gamma Sensitivity (Cs-137 / Co-60) 20 – 35 pulses/mR/h

Parameter Value
Tube Diameter 22 mm
Tube Length 199 mm
Window Type None (metal cathode)
Weight ~40 g

Parameter Value
Operating Temperature Range −50 °C to +70 °C
Expected Lifetime ≥ 2 × 10¹⁰ pulses

✅ Features

✔ Sensitive beta and gamma detection
✔ Stable plateau and low background
✔ Tested and NEW old stock (NOS)
✔ Suitable for professional instruments, laboratories, and DIY Geiger counters
✔ Reliable, long-lifetime Soviet/Russian tube

📦 What You Will Receive

1 × SBT-13 Geiger Counter Tube (NEW, Tested)

Protective packaging for safe shipping

⚠️ Important Notes

High-voltage device – proper circuit design required

Tube only – electronics not included

Please review photos for exact connector and tube appearance

🚚 Shipping & Handling

Ships within 1–2 business days

Carefully packed to prevent damage

Worldwide shipping available

🔁 Returns

Returns accepted if the item is not as described.
Please contact the seller before returning.

FOR SALE lot of 1 pc. ALPHA BETA AND GAMMA Pancake Geiger Counter Tube SBT-13 analog of SI8B

All tubes are new, may have some scratches. Parcel will be well packed and shipped by air mail with tracking number, shipping usually takes 12-21 days, depends on your location. If you need more tubes than listed or other type of devices please send me a message.

SBT-13 Geiger Counter Tube Technical Specifications:

🔬 Description

The SBT-13 is a sensitive beta/gamma Geiger tube with a stable plateau, low intrinsic background, and reliable operation over a wide voltage range. All tubes are individually tested and confirmed working, ensuring consistent performance.

⚡ Technical Specifications

ParameterValueWorking Voltage390 – 420 VRecommended Operating Voltage400 VPlateau Length≥ 100 VPlateau Slope≤ 0.2 % / VRecommended Load Resistor5.1 MΩTube Capacitance10 pF

ParameterValueRadiation DetectedBeta / GammaMaximum Counting Rate~10,000 pulses/minIntrinsic Background≤ 1.5 pulses/secGamma Sensitivity (Cs-137 / Co-60)20 – 35 pulses/mR/h

ParameterValueTube Diameter22 mmTube Length199 mmWindow TypeNone (metal cathode)Weight~40 g

ParameterValueOperating Temperature Range−50 °C to +70 °CExpected Lifetime≥ 2 × 10¹⁰ pulses

✅ Features

✔ Sensitive beta and gamma detection ✔ Stable plateau and low background ✔ Tested and NEW old stock (NOS) ✔ Suitable for professional instruments, laboratories, and DIY Geiger counters ✔ Reliable, long-lifetime Soviet/Russian tube

📦 What You Will Receive

1 × SBT-13 Geiger Counter Tube (NEW, Tested) Protective packaging for safe shipping

⚠️ Important Notes

High-voltage device – proper circuit design required Tube only – electronics not included Please review photos for exact connector and tube appearance

🚚 Shipping & Handling

Ships within 1–2 business days Carefully packed to prevent damage Worldwide shipping available

🔁 Returns

Returns accepted if the item is not as described. Please contact the seller before returning.

All tubes are new, may have some scratches.

Parcel will be well packed and shipped by air mail with tracking number, shipping usually takes 12-21 days, depends on your location.

If you need more tubes than listed or other type of devices please send me a message.

The SBT-13 is a sensitive beta/gamma Geiger tube with a stable plateau, low intrinsic background, and reliable operation over a wide voltage range.
All tubes are individually tested and confirmed working, ensuring consistent performance.

Parameter Value
Working Voltage 390 – 420 V
Recommended Operating Voltage 400 V
Plateau Length ≥ 100 V
Plateau Slope ≤ 0.2 % / V
Recommended Load Resistor 5.1 MΩ
Tube Capacitance 10 pF

Parameter Value
Radiation Detected Beta / Gamma
Maximum Counting Rate ~10,000 pulses/min
Intrinsic Background ≤ 1.5 pulses/sec
Gamma Sensitivity (Cs-137 / Co-60) 20 – 35 pulses/mR/h

Parameter Value
Tube Diameter 22 mm
Tube Length 199 mm
Window Type None (metal cathode)
Weight ~40 g

Parameter Value
Operating Temperature Range −50 °C to +70 °C
Expected Lifetime ≥ 2 × 10¹⁰ pulses

✔ Sensitive beta and gamma detection
✔ Stable plateau and low background
✔ Tested and NEW old stock (NOS)
✔ Suitable for professional instruments, laboratories, and DIY Geiger counters
✔ Reliable, long-lifetime Soviet/Russian tube

1 × SBT-13 Geiger Counter Tube (NEW, Tested)

Protective packaging for safe shipping

High-voltage device – proper circuit design required

Tube only – electronics not included

Please review photos for exact connector and tube appearance

Ships within 1–2 business days

Carefully packed to prevent damage

Worldwide shipping available

Returns accepted if the item is not as described.
Please contact the seller before returning.