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Preamp tubes

 
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(!) (Single) E288CC=8223 Siemens Halske Germany NOS 1974 (36/35ma)

(!) (Single) E288CC=8223 Siemens Halske Germany NOS 1974 (36/35ma)

$ 119.99
(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (36.0/37.6ma)

(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (36.0/37.6ma)

$ 129.99
(!!) (Best Pair) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (33.2/33.0ma and 33.3/32.5ma) 1-3% matched

(!!) (Best Pair) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (33.2/33.0ma and 33.3/32.5ma) 1-3% matched

$ 259.99
(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1965 (41/29ma)

(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1965 (41/29ma)

$ 89.99
(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Philips NOS 1974 (35.6/30ma)

(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Philips NOS 1974 (35.6/30ma)

$ 89.99
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