TDA1541 IV stage options - MV Audio Labs
D3a electron tube. Portrait of a tube.
6J52P (original box) | Tube ~ Analog: E810F / 7788 | Soviet-Tubes
DHTRob - Single Ended 6C33C with D3A driver
SM5CBW - Tubedata
D3a electron tube. Portrait of a tube.
Sockelbilder - Base Diagrams
Super Transconductance Tubes
Tube type list
Legs and Curves
Super Transconductance Tubes
SOCKREF • Sockelbilder - Base Diagrams
300B NFB SET
das Computer-Röhren-Messgerät - Testing Tubes with very high Conductance using a Cathode Resistor with the D3a as E - RoeTest
TubeEquivalents As | PDF | Vacuum Tube | Pressure
D3a @ The Valve Museum
Siemens D3A Pentode Tube | TubeDepot.com
6E5P triode – Bartola® Valves
D 3a, Tube D3a; Röhre D 3a ID19218, Vacuum Pentode | Radiomuseum.org
D3a pentode as driver? History of this tube? | diyAudio
First Phono Stage Design: MM D3a > 2C51 Hybrid | diyAudio
