Tube Data Sheets & Specs

of popular electronic audio vacuum tubes

EL34 / 6CA7   from"Amperex Special Purpose Tubes" Amperex Electronics Corporation, Aug 1967.
page 1     General electrical and mechanical characteristics
page 2     Maximum Ratings and some operating characteristics
page 3     More Operating Characteristics
page 4     More Operating Characteristics
page 5     Pin out and Envelope
page 6     Transfer Characteristics - GRAPH
Current, input, distortion & output power
page 11   @ 3K load impedance - GRAPH
page 12   @ 2K load impedance - GRAPH
page 13   Class B @ 4k load impedance- GRAPH
page 14   Class B @ 11K load impedance - GRAPH
page 15   Class AB @ 3.4K load impedance - GRAPH
page 16   @ 3K load impedance, triode connection - GRAPH

12AX7 / ECC83   from"Amperex Special Purpose Tubes" Amperex Electronics Corporation, Aug 1967.
page 1      General electrical and mechanical characteristics
page 2     Max ratings, operating characteristics
page 3    Resistance-coupled amplifier data
page 4     Operation as phase inverter
page 5     Operation as phase inverter, pin out , envelope
page 6     Transfer characteristics - GRAPH
page 7     Plate characteristics - GRAPH
page 8     Dynamic curves: mu, Rp, Gm @ Ep=250V - GRAPH
page 9     Dynamic curves: mu, Rp, Gm @ Ep=100V - GRAPH

Vacuum Tube Data Sheets  from "Technical Manual: Sylvania Electronic Products" Sylvania Electric Products Inc., 1958
Rectifier Tubes
5U4         page47, page 48
5Y3GT    page 49

Power Tubes
6V6         page384, page 385
6L6         page345, page 346, page 347
6BQ5 / EL84   page 124, page 125

6550   from"RCA Receiving Tube Manual" RCA Radio Corporation of America Inc, 1950
page 1     Maximum ratings and typical operation
page 2     More typical operating conditions
page 3     More typical operating conditions

Preamp Tube
12AT7    from "Amperex Special Purpose Tubes" Amperex Electronics Corporation, Aug 1967.
page 1     General electrical and mechanical characteristics
page 2     Max ratings, operating characteristics, pinout, envelope
page 3     Transfercharacterisitics, plate characterisitics
page 4     Dynamic curves: mu, transconductance, Rp