1 X ECC88 / 6DJ8 TUBE. USED.

BRAND: AMPEREX BUGLE BOY. 1950s PHILIPS PRODUCTION. ◿9H CODES.

GREY PLATES, D-GETTER.

TESTED IN ROEHRENTEST TUBE TESTER:

81/85% 12.126/12.786mA EMISSION (EM)

CH168U1