HIGH PO WEB ULTRA-lINEAR WllLIAMSON , U WATTS WITH 6550, KT-88 50 WATTS WITH 6CA7/EL-34
H ESI S TORS MARKED MATCHED PAIR5.
400-0-400
FOR 6550 TUBES AOJUST 25K VARIABLE RES1STOR TO APPROX. 1BK TO GIVE — 48V BI AS.
FOR EL-34 ADJUST TO APPROX. MK TO GIVE —38 V BI AS. CONNECT PIN NO. 1 5UPPRESSOR OF EL-3 4 TO CATHODE PIN NO. 8.
MEASURE BIAS VOLTAGES AT GRIDS OF OUTPUT TUBES.