USSR Dekatron counting tube nixie OG-3 OG3 Carbolite base NOS Decatron
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<b>[Product Information]</b><br>
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<li>The OG-7 is identical to the OG-4, but with an argon fill gas.</li>
<li>The OG-7 also has identical pinouts and internal construction as the OG-4,</li>
<li>but its counting speed is rated at a brisk 50 kHz</li>
<li>Soviet OG-7 50kHz counter</li>
<li>he OG-4 and OG-7 are arguably the best choice tube for a novelty project</li>
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