LOOKING FOR R1 465 OHM 15 WATT RESISTOR. I have check everywhere and cannot find this value. I substituted a 470 ohm resistor and the amplifier works ok except my resting cathode current which should read 90 ma only reads 40 ma. I would not think 5 ohm excess would effect this reading unless I am wrong. Reggie http://www.qsl.net/k6xr/index.html