Sylvania 6B4G - Dual Flat Plate - Amplitrex Tested - Excellent - Matched Pair
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| Condition | |
| Payment methods |       |
| Ships from | Beverly Hills, CA, 90210 |
| Ships to | United States |
| Package dimensions | unspecified |
| Shipping carrier | USPS |
| Shipping cost | $15.00 |
 Average | Research Pricing |
Very nice pair of Sylvania 6B4G clear glass dual flat plate directly heated triodes. These are a higher powered version of the 2A3 with different base. Matching date codes. Matching internal and external construction. Rectangular getters. Amplitrex tested for grid voltage and transconductance at 250v and 60mA. Test excellent and matched: Tube 1: Grid: - 42.0v; GM: 5.6 mA/v Tube 2: Grid: - 42.5v; GM: 5.85 mA/v Buyer to pay shipping and PP fees. Cheers and thanks for looking.
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