Re: Ozark Patrol Audio Transformer and Jack
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I ran the troubleshooting voltages in the Assembly Manual. The battery voltage iws 8.434v. The following voltages are in list order:
Looks like the voltages on the collectors of Q1 and Q3 are high. I have gone through the soldering on the regenerative circuit and touched up each one. Still no regeneration. I replaced D1, but don't have (or can't find) 1N914 diodes. Haven't pulled and tested them yet.
On Sat, Aug 22, 2020 at 8:07 PM Dale Hardin via groups.io <firstname.lastname@example.org> wrote:
OK, got the little amp installed and working. After replacing all the transistors, I hooked up my signal injector to the antenna end and got a tone out of the speaker. However, I do not have any regeneration, so I hooked it up to my antenna. Still no joy. Absolotutely no regeneration. I have the batteries out being recharged so I can get some voltage measurements. I would appreciate it if one of you more knowedgable members would give me a list of tests to carry out to see what the problem is. BTW, I removed, checked for good, and replaced the coil, so I'm comfortable it is ok. The voltage changes on the regen pot when turned, so the pot is ok. Where do I start looking now? Dale
Dale Hardin, KS4NS