First esrc1's fone is 407-826-5808. Chinese ones are $50 Now 805s will work in '375 for osc & final. But of course you've gotta wire up that plate cap. Because 0f biasing, 211s must remain in modulator. There's a 375 so done nearby BTW, the 838 is a capless 805 & has the same odd-bodkins variable pitch grid 'rm