[ARC5] Update: BC-669 Project for Veteran, Parts Request.

David Stinson arc5 at ix.netcom.com
Sat Sep 21 08:23:12 EDT 2019


Thank you all so much for your efforts, digging into those old boxes.
One of our kind members donated the glass 6L6s and another sent-
along a green pilot-lamp jewel to replace the improper white one.

Still need:
Two 807
One 6SA7
Frequency Chart Holder
Crystals for:
3880, 3885, 3890, 3495, 3500, 3505, 4265, 4270, 4275
(The BC-669 has a 385KC IF.  Someone get a medium to
raise the shade of the person who decided that so I can
throw garlic at him).
I'll be etching some crystals, but it's a tedious job and even
one off the "etch" list is a big help.  Last resort is
programmable oscillators, which I've done before and it works,
but a rock is better if possible.

Still need some suggestions for one or two 160 Meter AM freqs
that will apply to Texas.  Is no one on 160 AM anymore?
I once thought 1885 was the "calling freq" for AM, but I haven't
heard anyone there in quite a while.  Maybe my timing is bad?

Our Tug-Boat captain is excited that the project is progressing.
It will be cool to hear him on the local AM nets with it.
This one ain't easy:  Many grounds had gone Hi-Z.
Someone replaced the power connector with one from
an SCR-522.  The original connector is no easier to find now
than it was then, so I just "went with it."
Every paper cap in it, and there must be
two dozen, is bad.  Most of the resistors are over 20% out.
Half of the receiver tubes are bad, including the "gassy-est"
6K6 I've ever seen.  That one was an excellent example of why
one should not get lazy and skip the GAS test on the TV-7.
Transconductance looked peachy.  GAS test darn near pinned
the meter.  Oof!

What is it about the BC-669 that some of us find so attractive?
Maybe it's because it looks like something John Paul Jones might
have used to accept the surrender of /Serapis/ ?

TNX OM ES 73 DE Dave AB5S



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