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Post by Night Ranger on Jul 11, 2019 12:28:21 GMT -5
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Post by 321 treeclimber on Jul 11, 2019 13:21:33 GMT -5
10-4 Ranger. I called rf today but tech was out. They sayed he will call me tomorrow.
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Post by cbrown on Jul 17, 2019 14:05:09 GMT -5
I've used both RF Parts & Tubes and More extensively, both are good. Never tried the Canadian guy on Ebay, will give a look. Thanks! |
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Post by oldgeezer on Jul 23, 2019 8:13:08 GMT -5
Cross reference tubes. The 6GH8 is listed as a substitute for 6EA8. The 6GH8 works at times for the 23 channel crystal mixer. But, for an RF amplifier tube, it does not work well and especially so in Cobra Cam 88 and Knight KN-2565B (same chassis as Cam 88). The best 6EA8 I used for an RF amp tube is older Tung Sol. The Tung Sol is far superior to GE 6EA8.
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Post by oldgeezer on Jul 23, 2019 8:18:14 GMT -5
The 6LB6 seems to be the most cost effective solution from what I'm seeing. Although an old post, the exact replacement for an 8950 with the 6.3 volt filaments is the 6KD6. 6LB6 and 6LF6 are slightly different and can upset the plate settings on the Palamar amp. |
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Post by oldgeezer on Jul 23, 2019 8:21:48 GMT -5
The exact replacement tube for an 8950 is the 6KD6 with same internal elements with a 6.3 volt filament. The 6LB6 and 6LF6 are slightly different inside, your amp may tune differently and the drive (input) capacitor trimmer if so equipped may need re-tuning for 6LB6 & 6LF6..
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Post by oldgeezer on Feb 29, 2024 18:00:36 GMT -5
The NJ7P list is dead. In fact all are dead except Duncan.
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