Re: (ET) E-15 not getting out of first speed

[Larry Chace <RLC1 etnainstruments com>]

Mike mentioned replacing card #1's C103 capacitor.  That is in the 
time-delay circuit for the 1A contactor (which, when fired, gives 
electric speed #2).  There were at least 2 different values for C103, 
1uf and 50uf; the associated resistor was 2.2Mohms or 39Kohms

Replacing C103 is not a bad idea.  In fact, it might be good to 
closely examine all of the solder joints on that card.  It is a 
single-sided card (copper on just the bottom side, and the holes are 
not through-plated), and vibration (what???) can cause solder 
connections to break.  Re-heating them with a suitable soldering iron 
can make a big difference.

One possible problem is that at least some of the GE-built cards were 
coated with a protective film after assembly, one that resists 
soldering iron heat quite effectively.

Larry Chace, Ithaca, NY  I-5 and E15