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Vintage Beam power output tubes 7561 Telefunken 4pcs NOS tested (100%+ on measurements) Germany / Ulm

Codes : 192906 / U5109907J / U3209607 F / U1007208D Tested on Roetest V10.1 (best tube tester 76mA=100%)

Tube 1 : 87mA (13mA/V)

Tube 2 : 94mA (13mA/V)

Tube 3 : 76.5mA (10.66mA/V)

Tube 4 : 76mA (12.25mA/V)

no shorts no gas

replacement Telefunken box

PRICE IS FOR 4 TUBES