Vintage SG Military Grade 6SN7 Tall Glass
These tall glass mil spec. 6SN7 tubes were made in the late 70s or early 80s, further tested, graded and matched by Sophia Electric in the US.
- Grade A (top 10%) : $99.99 per tube with 30 days warranty, $20 extra for one year warranty.
- Grade B (top 30%) : $79.99 per tube with 30 days warranty, $20 extra for one year warranty.
- Grade C : $49.99 per tube with 30 days warranty.
- Bulk : $200 for five untested tubes.
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