(!) (Recommended) EM87 Valvo Germany branded Siemens Germany NOS 1961 (4 in stock)
By Tube World
$ 28.99
4) EM87 Valvo Germany branded Siemens Germany NOS 1961
(sub for 6E2 Russian eye tube)
- McIntosh MR71, MR73, MR74, MR77 tuner
- Ming Da MC 84C07 preamp
See more: vacuum tube
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 (Recommended) EM87 Valvo Germany branded Siemens Germany NOS 1961 (4 in stock) "Pin It")