1Ж30Б1j30b
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Forum contributions about this tube
1Ж30Б
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1j30b (1j30b)
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Michael Watterson
09.Oct.11 |
1
This is a dual control grid rod pentode similar to the 1j42a and 1j37b intended for mixer applications. In Russian it's marked 1Ж30Б See also Russian Subminiature Tubes for general Information. The more common 1j37b is down to 12V on Anode and G2 for operation and about 59mA filament. The 1j42a can be used with 6V HT and is only 15mA filament. The 1j30b is about 18mA filament so somewhere between the 1j37b and 1j42b in characteristic. Please contact the Author if you know of equipment using it or stock for sale.
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1Ж30Б
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