ECC82 @ The National Valve Museum [Datasheet]
This exhibit is the Mullard ECC82. Designed as audio and general purpose triodes, two independent valves exist in the envelope. A special quality version was also produced, the E88CC, and for differential amplifiers in industrial equipment the anti-microphonic and matched pair version E182CC was also made.
http://www.r-type.org/exhib/aai0081.htm

Datasheet ECC82 Philips
http://www.hebertech.com/view/171-philips-ecc82.pdf
 
 

12AU7 (ECC82) Cathode Follower Tube Preamplifier Schematic
This schematic below is a simple two stage line-level preamplifier using a single 12AU7 (ECC82) tube per channel. The overall voltage gain of the circuit is about 8.
http://diyaudioprojects.com/Schematics/12AU7-Cathode-Follower-Tube-Preamplifier.htm

4S Universal Preamplifier for 12A*7 Tubes
The basis for this tube preamplifier started out as a post in the Super simple single stage tube preamp thread on the website Forum. One of the members had suggested building a Super Simple Single Stage Preamp
http://diyaudioprojects.com/Tubes/Universal-Tube-Preamplifier/

ECC802S (12AU7 / ECC82) Tube SRPP Preamp
After designing and building a number of vacuum tube (valve) power amplifiers I decided to build a tube preamplifier. I did a lot of searching for the "right" design and really could not find one I liked.
http://diyaudioprojects.com/Tubes/ECC802S-ECC82-12AU7-Tube-SRPP-Preamp/

Een 0V1 Buizen Ontvanger door PA2OHH
Als beginnend radio amateur wilde ik al een 0V1 radio ontvanger maken met een buis. Maar dat was er nooit van gekomen. Toen ik dat aan mijn collega Alfred vertelde, kreeg ik van hem een prachtig cadeau, allemaal onderdelen om een 0V1 buizen ontvanger te maken!
https://www.qsl.net/pa2ohh/15tuberxnl.htm

Ricevitore per onde medie con ECC82
Il circuito è uno 0V1, cioè 0 valvole in amplificazione AF, 1 valvola rivelatrice ed una valvola amplificatrice di BF. In questo caso la valvola ECC82 è costituita da due triodi separati che assolvono ai compiti sopra riportati: il primo triodo lavora come rivelatore e amplificatore, il secondo triodo come amplificatore in bassa frequenza.
http://www.radioedintorni.it/Radiomeccanico/RadioCostruttore/ECC82.html

Ricevitore VLF Valvolare by IWØBZD
Il circuito di seguito descritto è stato appositamente progettato per tale scopo. La sua caratteristica innovativa è proprio quella di poter funzionare con una unica tensione continua di 12 V e poter essere all’occorrenza alimentato con una piccola batteria NiCa o Pb di quelle utilizzate in genere per i flash professionali o antifurti. Il circuito, in queste condizioni, è in grado fornire, dato il suo esiguo assorbimento di corrente, molte ore di funzionamento.
http://www.qsl.net/iw0bzd/VLF_TUBE_RX.htm