Free for postage: Three metal tubes,5T4, 6SR7, 6J5
 

Free for postage: Three metal tubes,5T4, 6SR7, 6J5. All these tubes are
USED.

6J5 - Metal tube used in detector, amplifier, or oscillator service in
radio
equipment. High transconductance and amplification factor. Tested GOOD.

5T4 - Metal type used in power supply of radio equipment having large dc
requirements. Requires octal socket. Vertical tube mounting is preferred
but
horizontal mounting is permissible if pins 2 and 8 are in vertical plane.
Tested OK.

6SR7 - Metal type used as combined detector, amplifier and avc tube in
radio
receivers. It is equivalent in performance to type 6BF6. Requires octal
socket and may be mounted in any position. Tested BAD.

These tubes are free for postage from 60516. I will ship them to you by
either parcel post or first class from ZIP 60516, whatever is cheaper.

73, John WB9OVV