Rich,
Look at it in a positive light........it keeps you out of the bars at
night! On the other hand, it might just drive you to drink!
Pat-K4BEH
On Mon, 6 Dec 2004 22:25:48 -0500 "Richard Arland"
<richard.arland@verizon.net> writes:
> The latest installment: 12-6-04
>
> Several of you have replied off-list to check out the crystal for
> 10M.
> Unfortunately, I can't find any crystals (the IF aside) at all. The
>
> oscillator board is all LC free running oscillators.
>
> Now for the really bad news: The doubler/tripler transformer, T1, is
> so
> badly out of alignment that it is erratic. Sometimes it will triple
> on 40
> meters (like it is supposed to) but then it will also triple on 15
> meters
> instead of double, which it is NOT supposed to do! By tweaking the
> coils, I
> can get it to double on 15 M but then it will only double on 40M,
> which puts
> me at 10.7 MHz This is not a good thing! I was actualy tempted to
> remove the
> oscillator/VFO board from the T-T Model 315 receiver and tryi it in
> the 509,
> however, the 315 board uses a regulated 7VDC and the 509 uses a
> regulated
> 9VDC. OOPS! The basic and injetion frequencies are the same,
> however. I may
> try this as a desperate "last action".
>
> I spent about 3 hours today trying to align the oscillator stages on
> the
> oscillator sub-assembly. It took that long to get the hang of how
> the two
> coils per band interact with each other. Now I have four of the five
> bands
> tracking pretty good, but 15 M is unusable due to the Injection
> Frequency
> tripling to 18 MHz instead of only doubling to 12 MHz. So, I got a
> partial
> "win" in that I have a useable radio on 80, 40 & 20M (At this point
> I'll
> take what I can get!)
>
> Oh, yeah, I broke one of the leads on Q1 on the audio board due to
> all the
> handling of the chassis with the front panel removed. It is an
> MPSU10 which,
> of course, I can't cross to anything I have in the shop (that's a
> big
> surprise). Anyone got a suitable sub? (I know...."make one outta
> wood".)
>
> Well, that's it for today's installment. I copied the previous e-mail
>
> posting to the T-T lab, but they have not replied, since I asked
> them some
> specific questions. In the "old days" they kept a supply of boards
> and
> sub-assemblies at the T-T lab and all you had to do was send them
> your
> misbehaving board and they would send you a new one (and bill you,
> of
> course).
>
> At any rate, I am now looking for another 509 in good electrical
> shape. I
> can always use the case and end panels/top of mine on the nw 509 to
> make it
> look pretty.
>
> More later.
>
> 73 es Happy Holidays
>
> Rich K7SZ
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|