Friday, June 6, 2014

Sunday, May 25, 2014

Radiotron Designer's Handbook


Most of my knowledge in Audio DIY have been gleaned from the Radiotron 3rd Edition. The 4th Edition is just over the top of my head, but looks better sitting on my bookshelf ;)


Page 53, Chapter 8


Monday, March 17, 2014

Type 77 Pentode


Type 77 pentode in the Radiotron SE2A3 amp


Plug-in compatible with the 6C6 

Sunday, March 2, 2014

RC-12 Tube Manual

© 1934
All the tubes I am using in my Hi-Fi System were being manufactured by the time the RC-12 was published.

RCA phono from RC30
More info


But I also keep an RC30 copy!