发明名称 |
Vacuum tube valve preamplifier for use with vinyl disc records has special hum free electronic circuit characteristic |
摘要 |
A vacuum tube valve amplifier for playing vinyl gramaphone records has a hum free electronic circuit [I]. The circuit is within a metal screening housing. The system is used with a mains transformer [III] and supplies a dc voltage stage [II].
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申请公布号 |
DE20317068(U1) |
申请公布日期 |
2004.02.19 |
申请号 |
DE2003217068U |
申请日期 |
2003.10.29 |
申请人 |
REUSENZEHN, THOMAS |
发明人 |
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分类号 |
H03F3/02;(IPC1-7):H03F3/181 |
主分类号 |
H03F3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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