25-02-2017, 10:24 PM
Regarding AF117s, I consider them to be 'change on sight' devices. 'Zapping' them may only be a temorary cure. I'm currently repairing a Perdio 'Caralux' portable in which two of the three AF117s were leaky due to the well-known 'tin whisker' problem, so I've replaced all 3 with Russian made GT322 transstors. These are inexpensive germanium transistors, available from eBay sellers, and, unlike the increasingly hard to find AF127, have lead-outs about 1" (25.4mm) long, which makes it easier to fit them in many radios,, including the 'Caralux'
