Log-in
(!!!!) (Recommended Pair) E288CC=8223 Siemens branded Philips SQ 1975 (32/33ma and 33/35ma)

(!!!!) (Recommended Pair) E288CC=8223 Siemens branded Philips SQ 1975 (32/33ma and 33/35ma)

$ 199.99

1 low noise pair) E288CC=8223 Siemens branded Philips SQ 1975 (N6-5A=1975) same date codes

1 tube) 32/33ma Gm=20,800/20,200

1 tube) 33/35ma Gm=20,000/20,800

 

NOS Ma = 30ma

NOS Gm = 18,000

 

(Specs: Vfil=6.3 Ifil=0.475A, Vplatemax=250V Pwattsmax=3.0)

Typical Operation:
Va   Vg1   Ia     Ra     Gm  Rk    Mu
100 -1.5 30.0 1,400 18.0 350 20-25

See more: vacuum tube
Scroll to top