Below are several interesting circuits using the 801, 808, 811, 826, 838, 4d32, 2A3, etc. in what are mostly single ended class A2 audio amplifiers. Some of the circuitry may have uses in AM modulators.
http://members.at.infoseek.co.jp/lagarto/shishido/shishido-skema.htm "He(Mr Kouichi(Nobu) Shishido) used to be use some technic of inter stage transfomer. his many amplifier are almost same technic of inter stage transfomer. he invented call it's inverse phase connection under interstage transfomer amplifier.there are almost use for Transmitter valves Amplifier as Audio Hi End Amplifier.some one call it's Positive Grid Amplifier.just I will introducing you some circuit diagram of shishido's amplifiers here."
