From the interweb:
6R-A9/6RA9 =PowerTriode= (EIA/T8A - noval)
Eh/Ih=6.3V/0.6A Ehk=±200V
Ppmax=10W Epmax=600V Ikmax=50mAdc/150mApeak Rgmax=2.2MΩ
op : Ep=250V Ec=-10.5V Ip=22mA rp=2.5kΩ gm=6.7mS μ=16.5
pins : 1(K)-2(G)-3(NC)-4(H)-5(H)-6(IC)-7(G)-8(NC)-9(P)
It is quite close to 6BL7 but only single triode.
6R-A9/6RA9 =PowerTriode= (EIA/T8A - noval)
Eh/Ih=6.3V/0.6A Ehk=±200V
Ppmax=10W Epmax=600V Ikmax=50mAdc/150mApeak Rgmax=2.2MΩ
op : Ep=250V Ec=-10.5V Ip=22mA rp=2.5kΩ gm=6.7mS μ=16.5
pins : 1(K)-2(G)-3(NC)-4(H)-5(H)-6(IC)-7(G)-8(NC)-9(P)
It is quite close to 6BL7 but only single triode.
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Schematics sources
100 power amplifiers to lift your hat – preface. | Lilienthal Engineering
100 Amplifiers – Part 1 , 1916 – 45 | Lilienthal Engineering
100 Amplifiers, part 2 , 1945 – 54 | Lilienthal Engineering
100 Amplifiers – Part 3 , 1955 – 59 | Lilienthal Engineering
100 amplifiers – part 4 , 1959 – 82 | Lilienthal Engineering
RADIO and BROADCAST HISTORY library with thousands of books and magazines
100 power amplifiers to lift your hat – preface. | Lilienthal Engineering
100 Amplifiers – Part 1 , 1916 – 45 | Lilienthal Engineering
100 Amplifiers, part 2 , 1945 – 54 | Lilienthal Engineering
100 Amplifiers – Part 3 , 1955 – 59 | Lilienthal Engineering
100 amplifiers – part 4 , 1959 – 82 | Lilienthal Engineering
RADIO and BROADCAST HISTORY library with thousands of books and magazines
https://www.americanradiohistory.com/ARCHIVE-RCA/RCA-Review/RCA-Electron-Tubes-I.pdf
https://www.americanradiohistory.com/ARCHIVE-RCA/RCA-Review/RCA-Electron-Tubes-II.pdf
Thanks for kind words Overtheairbroadcast Cheers!
https://www.americanradiohistory.com/ARCHIVE-RCA/RCA-Review/RCA-Electron-Tubes-II.pdf
Thanks for kind words Overtheairbroadcast Cheers!
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Enjoy Thanks indeed to DIY Friends in Japan and America DIY articles TOP
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