Front Cover, Rear Cover Upper, & Rear Cover Lower
Various European receiving Tubes. The front row has the Lorenz DF41W at left, and a group of rare RFT (East German) miniature “gnome” types: EAA171, UCH171, UB171, etc.
Rear row: three Loewe multi-unit tubes at left, two Arcotron gridless types types at right. Center row: Telefunken and Radio Micro tubes at left, Telefunken types from WW1, etc. Front row: modern metal-ceramic transmitting types.
In this issue
- Readers Report
- The PZ Story
- The LA9DL Collection
- Tektronix CRT History
- AWV’s Tube Demonstrator
- A Sample of RCA’s “Bullet Tube”
- Report on Search for Electrical Equipment for Tungston Manufacture
- Notes on the Problem of Flacking of Emission Coating in Vacuum Tubes
- A Specialized Tube Tester