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(!) (Pair) 12B4A RCA NOS 1971-1974 (42ma and 36.5ma)

Name: (!) (Pair) 12B4A RCA NOS 1971-1974 (42ma and 36.5ma)
Brand: Tube World Express
SKU: 12b4a-rca-p5
Price: 19.99 USD
Availability: InStock

USD 19.99

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Brand Tube World

12B4 12B4A preamp tubes RCA Sylvania

Tube World Express Verified independent store

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1 matched pair) 12B4A RCA NOS 1971-1974 1 tube) 36.5ma Gm=6500 1 tube) 42.0ma Gm=7100 Matched on Amplitrex AT1000 (Vplate=140V, Vgrid=-15V, Good Iplate range 25-40ma) Good Gm range 5500-7000

(!) (Pair) 12B4A RCA NOS 1971-1974 (42ma and 36.5ma)

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