Four Russian EH6922 vacuum tubes with gold plated pins for output amplification.
Four Russian EH6922 vacuum tubes with gold plated pins for output amplification.
四枝俄罗斯EH6922镀金脚电子管作为输出放大。
Four Russian EH6922 vacuum tubes with gold plated pins for output amplification.
四枝俄罗斯EH6922镀金脚电子管作为输出放大。