Hammarlund used three 6C4’s in their SP-600 radio receiver. 2 Heathkit 6C4 Vacuum Tubes. 1959 Power Triodes. Hammond used a pair of 6C4’s in models: A-100, B-3, C-3, D-100, M-3, M-100 and RT-3. Collins used three 6C4’s in their R-390 and R-390A radio receivers.
Item Tag: 6C4
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Vacuum Tube BRIMAR 6C4 – NOS – TESTED***FREE USA SHIPPING
ALL SOLD AS-IS. make this clear IF A Box is included, it has wear. TESTING IS DONE ON MIGHTY MIKE ii or TV-7D/U.
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50 Year Old Vacuum Tubes | 4 7091A’s | 4 7025’s | 2 6GH8A’s & 1 6C4
And finally, one CBS tube in an RCA box. It is a 6C4. Then there are 2 RCA 7025’s. There are eleven tubes all together! He died a couple of years ago, and I discovered this box of 50 year old tubes.