CLASS C → S+.
Formerly NVT4 → NVT7+.
Silicate Systems is an official distributor of NNVT image intensifier tubes (manufactured by JPNV) for France and Europe. The manufacturer renamed the line into the CLASS system in 2026 — CLASS C maps to the legacy NVT4, CLASS S+ to the legacy NVT7+. Same factory, same lineup, same performance. Gated as standard from CLASS B, green P43 or white P45 phosphor (no performance difference). Every tube ships with its signed factory data sheet, traceable serial number, 2-year manufacturer warranty.
Official JPNV / NNVT distributor for France and Europe.
Direct JPNV sourcing
Tubes ordered directly from JPNV, the official commercial interface for NNVT in France and Europe. No intermediate wholesaler degrading margin or traceability. Direct line to the manufacturer.
Signed factory data sheets
Every tube ships with its factory data sheet signed by NNVT — FOM, sensitivity, SNR, resolution measured at end-of-line. Traceable serial number, opposable to the manufacturer.
2-year factory warranty via Silicate
Manufacturer's 2-year warranty honoured by the factory via our channel — not a circumstantial reseller warranty. Standard exchange on manufacturing defects.
France support · no US export channel
Maintenance and exchange in France, English-speaking, direct to the manufacturer. EU/CN chain only — no US export licence to obtain, no ITAR delays to navigate.
Six CLASS levels,
legacy NVT in plain view.
NNVT unified its range under the CLASS system in 2026. Six levels from CLASS C (the legacy NVT4) to CLASS S+ (the legacy NVT7+). Technical performance is strictly identical to the NVT references you knew — only the naming changes. P43 (green) or P45 (white) phosphor at your choice, with no performance difference.
CLASS C · ex-NVT4
FOM 1400 · sensitivity 700 µA/lm · SNR 23 · resolution 60 lp/mm · not gated
The entry point to the NNVT catalogue — the legacy XD4/XR5 photocathode base. Adequate performance for observation and hunting in standard conditions. Stocked regularly, ships fast. Consider if budget is tight; otherwise step up to CLASS B for the auto-gating.
CLASS B · ex-NVT5 / NVT6
FOM 1600 · sensitivity 800 µA/lm · SNR 25 · resolution 64 lp/mm · auto-gating standard
First level with auto-gating built in — protects against momentary bright sources, essential in any urban area or with light sources in the field. Covers the legacy NVT5 and NVT6 designations at identical performance. The accessibility / longevity sweet spot for regular civilian use.
CLASS A · ex-NVT7
FOM 1800 · sensitivity 1000 µA/lm · SNR 28 · resolution 64 lp/mm · NIR enhancement + reflection reduction
First flagship step. The tube gains optical reflection reduction and NIR enhancement — boosted sensitivity in the near-infrared. Noticeably sharper in complex lit environments and against laser signatures.
CLASS A+ · ex-NVT7
FOM 2000 · sensitivity 1100 µA/lm · SNR 28 · resolution 68 lp/mm
The performance / price sweet spot at the top of the NNVT range. FOM 2000 and 68 lp/mm resolution, all while keeping the CLASS A technical benefits. Recommended for demanding regular use — the step that justifies climbing above CLASS A.
CLASS S · ex-NVT7
FOM 2100 · sensitivity 1100 µA/lm · SNR 29 · resolution 68 lp/mm · new-generation MCP
New-generation micro-channel plate (MCP), higher contrast image, refined halo. The step preparing the S+, favoured by users seeking the maximum from NNVT in traditional green phosphor.
CLASS S+ · ex-NVT7+
FOM 2300 · sensitivity 1200 µA/lm · SNR 30 · resolution 72 lp/mm
The summit of the NNVT catalogue. Technological parity with the PHOTONIS 4G range — acknowledged by the manufacturer itself — without the ITAR procedure or matching price tag. For buyers who want the state of the art at an accessible price point.
"NVT8" does not exist.
If someone offers you an "NVT8" tube, here's what the manufacturer says officially:
- NNVT has never released or promoted a product called NVT8. Any reference to this designation is a reseller invention.
- The official 2026 line runs from CLASS C to CLASS S+ — no NVT8 anywhere, neither in between nor above. The top of the range remains CLASS S+ (ex-NVT7+).
- When in doubt, ask your supplier for the signed factory data sheet and the tube's serial number. No NVT8 reference can ever be produced — it simply doesn't exist at the manufacturer.
Source: official email from the JPNV sales contact, May 2026 (internal archive, available on request).
Three paths
to an NNVT tube.
Tube mounted in the Silicate housing
The NNVT tube is included in the full configuration of a LAB-NVS (binocular) or LNVM (monocular). Controlled atmosphere assembly and nitrogen purge included, IP-68 sealing factory-guaranteed.
Configure my deviceTube sold for home assembly
You buy your NNVT tube separately, then the bare housing, then assemble yourself. More flexibility, sealing not guaranteed by Silicate (assembler's responsibility).
View bare housingsReplacement or upgrade
You replace the tube in an existing housing (Silicate or 18 mm-compatible third party). Sold per unit with official data sheet, contact us for quote and lot availability.
Request a quoteAbout NNVT
tubes.
Are you really an official NNVT / JPNV distributor?
Yes. Silicate Systems is an officially recognised JPNV distributor for France and Europe — not necessarily the only one (other official distributors may exist). Tubes are sourced directly from JPNV (NNVT's commercial interface), each tube ships with its traceable serial number and 2-year manufacturer warranty honoured by the factory via our channel. The signed factory data sheet is provided on request.
Which CLASS NNVT corresponds to an NVT5, NVT6 or NVT7?
NNVT renamed its range into the CLASS system in 2026. Mapping: CLASS C ↔ NVT4, CLASS B ↔ NVT5 and NVT6, CLASS A / A+ / S ↔ NVT7, CLASS S+ ↔ NVT7+. Technical performance is identical — only the naming changes. If you were looking for an NVT6, ask for a CLASS B; if you were looking for an NVT7, ask for a CLASS A through S depending on the FOM you want.
Is there an NVT8?
No. NNVT has never released or promoted a product called NVT8. Any "NVT8" offer on the market comes from a reseller inventing a designation, typically to dress up unsold inventory. The official 2026 range runs from CLASS C to CLASS S+. When in doubt, ask for the signed factory data sheet and the tube's serial number — none will show "NVT8".
Why choose green (P43) or white (P45) phosphor?
Purely a question of visual preference. P45 (white) renders an image in greyscale perceived as more natural; P43 (green) remains the historical military reference. On tube performance — FOM, SNR, resolution, gain — the two phosphors are strictly identical. The manufacturer confirms this explicitly.
Which CLASS to start with?
CLASS B at minimum. You get auto-gating as standard (protection against flashes and momentary bright sources), an FOM of 1600, and a tube that stays relevant over time. CLASS C is possible for a very tight budget, but the lack of gating limits use as soon as there are light sources in the field.
Gated, autogated — what's the difference?
None. Both terms describe the same feature: automatic gain regulation that protects the photocathode from flashes and lets you operate in changing light. Available as standard from CLASS B. We use "gated" throughout our documentation for consistency.
How do NNVT CLASS levels compare to PHOTONIS 4G?
The manufacturer NNVT confirms technological parity between CLASS A through S+ and the PHOTONIS 4G range. The difference plays out on price (radically more accessible), lead times (no ITAR export licence to obtain), and after-sales support (factory-direct, via our French distribution channel). At equivalent performance, the price gap can reach a factor of 2 to 3.
What tube formats do you offer?
The full NNVT 18 mm range as standard: GTX894, GTX864, GFX811D, GNX860 and GSX864 form factors — the five mechanical variants available across every CLASS. 16 mm format and FAT ANVIS on request. The LAB-NVS and LNVM configurators automatically pick the right form factor.