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(!) (BEST VALUE) 12AT7=ECC81 Mullard made in Hyperlec Brive France branded ULTRON NOS 1970's (7.4/7.8ma)

(!) (BEST VALUE) 12AT7=ECC81 Mullard made in Hyperlec Brive France branded ULTRON NOS 1970's (7.4/7.8ma)

$ 19.99

1 low noise tube) 12AT7=ECC81 Mullard made in Hyperlec Brive France branded ULTRON NOS 1970's

1 section) 7.4ma Gm=4900

1 section) 7.8ma Gm=5100

 

Hyperlec (later known as T.R.T and R.T.C.) was an electronics factory in Brive (a.k.a. Brive la Gaillarde), which is a town in the Corrèze region of France.

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