[R-390] CL80....

[Gene Beckwith]

John,

Agreed...SP-600 takes a little more time to stabilize....but seldom used
for ssb here...

R-390x in good shape is as u say...try it with a broad cast station
sometime as a standard...it's very cool to come back the next night and
find it less than a hundred cycles off ...

Great toys...!!

Cheers...

Gene

jlap1939@yahoo.com wrote:

> Friends,
>
> If someone could drop me a short reply sometime...
>
> I already had my radio IN the rack, and so I put the
> Keystone thermistor in the "brute force" line filter I
> made, (this was a few yrs ago, after my switch stuck,
> and by a stroke of luck, came back apart with a bit of
> tapping on the front cover...! I put the thermistor in
> RIGHT THEN...)
>
> All has been fine, but I often worried about the new
> limits it might face, as due to the location, the four
> tube Teleregister receiver amp/monitor I use runs
> through the same filter..(The filter has four
> outlets...). Now I have had to add a 40 W light, as
> the location is changed slightly, and I needed more
> light to read...The amp/mon is a four tube VTVM unit,
> with a very large low pass filter, and a series of
> line filters.
>
> To be honest, there have been times when I have turned
> on the SP 600 while the 390 was still on, as well as
> the tele. amp...(In order to warm up the 600, as it
> drifts for a half hr or so...to start with..) In other
> words, all this can at times run through the one
> thermistor...How Bad is that???
>
> This is probably too much load. huh?..What about just
> the 390 (or 600), and the amp...Sorry to say I still
> don't relate amps and watts, and voltage very
> well..(well...I mean not at all, in fact....?) Don't
> even know the amps for the thermistor, (In my "little"
> mind I seem to remember 3 amps, maybe???) Also,
> another subject:
>
> Someone asked about backlash and accuracy for SSB
> tuning, as they were not able to get as close in freq.
> readout as I said I do..If in fact, you have worn
> teeth, or loose or missing sgrings in your gear train,
> it will be too much backlash for the 1 to 2 hundred
> hertz readout I get..(Thought I would mention this as
> others may have run into it..  !  Of course you can
> blaspheme and add an electronic readout....)...
>
> By the way, who elses' SP 600 drifts from cold to full
> warm?.. My 390 doesn't drift enough to notice..I can
> cut it off on say, 3927  (!!!) (SSB set-up)...come
> back the next evening, and it is right where I left
> it, cold as a  house ...and doesn't change as it warms
> up ...(390 non a...remember...) Thats hard to beat..
>
> My Regards to the list..John  (JLAP)
>
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