Amplifier/Receiver Manufacturer:
HEATHKIT
Model:
SB-300/300E
Description:
Complete Primo tube set with all tubes 
Amp Bias Type:
none

Tube Quantity in ( )
Rectifier Tubes:
none
Preamp Tubes:
6AB4 (1), 
6AU6/6136 (4), 
6BA6/5749 (2),
6BZ6/6JH6 (1),
6HF8 (1),
6AS11 (1)
Power Amp/Driver Tubes (matched):
none
Total Tubes in this set:
10