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Der Bastler

Periodical   Volume 2Number 2303. June 1928

d_bastler_1928_23_titl.png
created by: Franz Harder (19.Okt.14)
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Some example tube pages for sets you can see there:

Triode, vacuum A408 (1926)
Triode, vacuum RE084 (1927)
Triode, vacuum RE134 (1926)

  
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