*The L7 fan has a vibration to it like the bearing or bushing, how ever its
made are bad, it actually has a clicking like the blades are hitting
something. I will take it off today and check, but in case its bad can I
find a replacement??*
*Thanks Again*
*Woody
*
On Fri, Sep 23, 2011 at 8:11 PM, Wo
On 2011-09-23, at 9:46 AM, Garey Barrell wrote:
> Eddy -
>
> I 'think' you're barking up the wrong tree unless you have already replaced
> the two 45 pF cap. If the frequency of the PTO shifts several kHz or tens
> of kHz, that small, (probably less than 10% of the total resonating
> capaci
Steve -
Cool, that makes all that filter stuff irrelevant. I'm about 97% CW, and only get on SSB when
forced by circumstance... :-)
Now if it was a KWM-2, you'd have BIG problems.. !
Yes, as I said, _MANY_ of the earlier 4 Series radios got the "B" knob upgrade. But does it have
the fl
Steve -
The KEY jack was on the front panel in the early T-4X transmitters. It was moved to the back panel,
probably in Version 3, but it was never on the side.
I was working at NASA in Huntsville, AL when the 2-B came out. I had been out of radio for a while,
school, girls, marriage, all g
I tried a 11.5 to 12 mhz crystal in my R4A and the radio is hearing nothing.
The preselector peaks the static, but at 15 meters instead of 25 and the
calibrator does not work. Nearby 31 meters and the ham bands work fine. Could
it be the crystal?
___
Where is the BAND switch set?
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
Neil M Califano wrote:
I tried a 11.5 to 12 mhz crystal in my R4A and the radio is hearing nothing.
The preselector peaks the static, but at 15 meters inste
OK.
What's the crystal 'marked' frequency?
Where'd it come from?? :-)
The PreSelector should peak about '6' on the '0-10' scale.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
Neil M Califano wrote:
At 14.0.
--- On Sat, 9/24/11,
Not many choices left! :-)
Are you certain you're selecting the ACCY socket it's plugged in to?
Perhaps plug in where one of your 'working' crystals are currently. Dirty ACCY switch contacts can
be a problem when not selected for years.
It should peak around 6 on the PreSelector.
If you ha
Actually, it had an A knob with an applied aluminum disc :) I took the knob
and skirt from my junker and put it on the T-4X, so they match a "little"
better. Yeah, the black lettering was also a big ergonomic change.
I've owned two C-lines in the past: an early one with the older-design
mixe
OK
10 Mhz is right on the 'border' between the 7 and 14 MHz BAND positions, so can be received on
either one. There is a chart in the receiver manual that shows which BAND switch 'should' be used
for each range. 9.5 to 10 MHz is shown on 7 MHz position, Preselector at ~ 7.5 (shown on grap
I got my PTO back from Garey this morning and just put it back into the R-4A.
Initially, I panicked because I couldn't get any signals with it. Turns out I
had the 11V line shorted to the output of the filter board. The voltage was
down to about 7V and the PTO was running but the signal was o
Well then, that's a 'collectible'!! I've never seen a disc on the domed 'A' style knob. Perhaps
it's just aluminum foil!??!?! :-)
Yeah, the audio of the R-4C wasn't nearly as good as the "B" line. Nothing
like that 'tube audio'! :-)
Well, yeah that mod is 'also' on your CD, in the 'Drake
On 9/24/2011 1545, Garey Barrell wrote:
There is considerably overlap in the ranges of the Preselector so for
instance you 'could' set the BAND to 14 MHz and tune 9.5 - 10 MHz by
setting the Preselector to about 5.
That is exactly what I have done for years. Any reason not to?
__
Nope, not that I'm aware of. I guess the higher L/C ratio of using the ones that tune near the
bottom of each range possibly result in a slightly higher 'Q' (narrower bandwidth), but I doubt
seriously it's noticeable.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and
Dis I see an accessory crystal bank somewhere for Drake? The bank would hold 10
extra crystals and plug into one of the crystal sockets to provide 20 crystals
instead of ten. Is there such a thing?
___
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