2A3 Single Amp broke!

2A3 single stereo amplifier is out of order now, right channel does not exert signal, 5Z3 rectifier, 12AU7 SRPP and self bias simple circuitry probably makes it possible for me to find out some defect anywhere. Long period of time interval makes me difficult to remember the circuitry and the actual way to find the error, but I will do that, though there are some feeling of tiredness. This low-frequency amplifier was assembled by myself 20 years ago, I was familiar with this kind of hobby and was skillful in this field at that time. There must something new by remembering old good days. "Know the new expressions asking the old." I prefer Triode power tube to Pentode, because of the critical reason, Second harmonic distortion that a triode has, on the other hand the Third one. The latter one causes ear drum fatigue after some long listening period of time. Not because of loudness but because of the innate Third distortion.

F3A Kansai qualify & SXE10 thrust

An attendance to F3A Kansai district qualifying competition yesterday gave me some motivation to proceed to F3A field. Most of the applicants and the organized executive were all my friends. Still now they are all in trial and error condition, especially, in motor and belt rotation down mechanics. I felt some stupid longer sound drawn in the Eye break-flight, because of the 2 m full size and over power setting? Anyway, they are all some experts on Earth, but I would like to catch them up and overtake their revel to win out the selection. I can see the direction of the choice. The D-day would be yesterday of next year!

As I felt some lack of straight running stability in SXE10 Altezza on the Highway road to Iwaya Awaji Island, adjusted I the thrust angle discrepancy on the rear axle adjuster, the angle value was 14,0 second. It goes without writing that the independence stability while straight running was recovered as usual and I made up my mind that this SXE10 would be continued more two years by having legal continuous inspection. Examination reservation at Kobe Land Transportation Office would be done today, the head light direction has tendency to be slightly up, so the fuel tank on rear portion should be near empty condition for the inspection. Comparison of the degree of difficulty to pass the inspection with Talbot Peugeot 205 Rallye, there is a heaven and earth difference between them. No paying attention is required to be checked the emission exhaust gas condition for SXE10 that is precisely computer controlled, on the other hand, 205 Rallye did ultimately keen concentration to adjust WEBER 40 DCOM twin carburetors to pass the ordinary inspection line. This kind of memory in good days is recalled fondly these days.