Preamp tube ECC803S - JJ

• A. F. twin triode with separate cathodes (non microphonic).
• Uf = 6.3/12.6V,
• If = approx.300/150mA.

Characteristics:

• Ua = 250V
• Rk = 1kOhm,
• Ia = 1.2mA,
• S = 1.6mA/V
• Ri = 62.5kOhm
• æ = 100

Limits:

• Ua = 330V
• Wa = 1.2W
• Ik = 9mA
• Ug = -55V
• Rg = 2.2 MOhm
• Uk/f = 200V
• Capacitance (system I): Cg/k = 1.6 pF
• Ca = 0.46pF Cg/a = 1.7pF
• Capacitance (system II): Cg/k = 1.6pF
• Ca = 0.34pF
• Cg/a = 1.7pF
• Operating characteristics (resistance - coupled gain): Ub = 250/250/250V
• Ra = 47/100/220KOhm
• Ia = 1.18/0.86/0.48mA
• Rg = 1/1/1MOhm
• Rk = 1.2/1.5/2.7/KOhm
• Dimensions: (H/H with pins x diameter): 49.2/56.3 x 22.2 mm