This listing is for two matching NOS 6HM5 tubes by Sylvania for Dumont and Sears (tube code 312 found on tubes; see photos). 

Note: Tube construction is matching besides branding; both made by Sylvania.

Tubes test NEW 100% and passes life test.

The 6HA5 is a miniature triode designed particularly for service in VHF television tuners as a grounded-cathode RF amplifier.

The 2HA5, 3HA5, 4HA5, and 6HA5 are alike except for heater ratings and heater-cathode voltage ratings.

Substitutes: 6HK5, 6HQ5, 6HA5

Shipping: $3.45 Each Additional: $1.00