I was sorting through tubes and I have found 5 NOS 17JB6 and 7 NOS 17JB6A.
Is there any use for these tubes with Drake equipment?
Mike W6MXV
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Hi Evan and everybody on the list,
My wife and I will be coming over to this year's Dayton Hamvention. The
planetickets were booked today. We are looking forward to meet many of you at
The Drake Forum!
We will be arriving to Atlanta, GA, on Wedneday May 13, and our departure will
be on Sunday
Hello,
Did anyone read the article on modernizing a TR-7 by DK4DDS. It has
information on adding a ton of features, such as DSP Noise reduction, curing
the PTO Drift, Notch Filter, Improving the sensevity on the higher bands,
Speech Processor and a bunch of others. It is some great food for
Personal opinion follows...
In a word, YUK!
It's like jacking up a Jeep and putting a Corvette engine, transmission
and wheels under it. What you end up with is neither a Jeep nor a
Corvette, but a collection of parts.
Much better to sell the TR-7, take the money you'd spend on the
Agreed Garey! I have a better suggestion though: keep the TR7 and if it is
so needed, buy that ugly ricebox in addition. Soon finding out that it is
nice to go back to the TR7 from time to time :)
Best 73, Dick PA2DW
Op Mon, 16 Mar 2009 22:19:20 +0100 schreef Garey Barrell
You said it, Garey. What a terrible idea. It's a waste of a radio, time,
manpower, and money.
Lee, w0vt
- Original Message -
From: Garey Barrell k4...@mindspring.com
To: Drakelist drakelist@zerobeat.net
Sent: Monday, March 16, 2009 4:19:20 PM GMT -06:00 US/Canada Central
Subject: Re:
Please conacel membership. I no longer have interest in Drake equipment.
Jim Wise w4pro___
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I think you need an additional opinion on this! First, the QST article is a
very poor condensed version of the DK4DDS (PA1HFO) mods that have been
floating around for a few years now. For some inexplicable reason, many of
his solutions were left completely out of the article (e.g. solution
Good Afternoon All:
Here is something I have been seeing now for a while. In my R-4a, every
cold start in the morning, the OB2 flickers and glows VERY bright. From
an angle, it looks like there are flames on the inside of the rcvr. I
almost spilled my coffe all over trying to get back to the
It's like jacking up a Jeep and putting a Corvette engine, transmission
and wheels under it. What you end up with is neither a Jeep nor a
Corvette, but a collection of parts.
But it might just create a tool that performs an intended purpose better
than either original...and perhaps better
I may remember someone in Europe using them in Drakes. It would either take a
separate power supply (not hard to do) or some voltage multiplier/resistor
combination (not that hard either). Some day we may be grateful to get
(any)JB6's. With a lot of 12, I would not throw them away. I would
The meters in my TR-3 are very bouncy. They are also magnetically coupled
together, so one will drag the other a bit and cause more bouncing. I was told
the early meters did this. This may be different than your problem.
73,
Bob WW3QB
--- On Sat, 3/14/09, STEVE SCOGGINS ke...@yahoo.com
Well, it's obvious that the original configuration is obsolete and
needs to be replaced by a piece of silicon!! :-)
Actually the flashing in VR tubes is often seen with leakage of air past
the pin seals. I have had several NOS tubes that have exhibited this
behavior. You may need to try
On Mon, 16 Mar 2009 17:19:20 -0400, Garey Barrell wrote:
It's like jacking up a Jeep and putting a Corvette engine, transmission
and wheels under it. What you end up with is neither a Jeep nor a
Corvette, but a collection of parts.
I'll add my never to be humble opinions to this, already
On Mon, 16 Mar 2009 19:04:02 -0400, Curt Nixon wrote:
Finally, using an old Drake in upgraded form beats having it sit on some
shelf only being used as a B or C rig because it isn't quite up to the
technical challenge of some of todays operating.
I haven't met a challenge yet that I couldn't
Floyd -
The rest of the mods are shown in the Extended version of the article
on the ARRL Binary site.
Certainly there are mods that can improve the TR-7 over what was
do-able almost 35 years ago. I just _personally_ prefer to use
these and other period rigs as designed. Things like the
On Mon, 16 Mar 2009 18:50:18 -0400, K8AC wrote:
The sensitivity of the TR7 is certainly lacking on the higher bands and a
good preamp is a great addition and doesn't require any metal work. I
bought one of the DF4NW preamps and you can turn it on/off by using one of
the TR7 front panel
I had the same behavior in my early serial R4-B. It's quite a light show in
a darkened room. The cause is definitely a bad VR tube in which there has
been air ingress. Just stick another tube in there.
Dennis AE6C
On Mon, Mar 16, 2009 at 7:24 PM, Garey Barrell k4...@mindspring.com wrote:
On Mon, 16 Mar 2009 23:12:06 -0400, Garey Barrell wrote:
I have no quarrel with external modifications or accessories such
as your DDS VFO,
I will admit the DDS VFO idea looks interesting, and I understand they
have made great strides in the DDS area in the past few years. To me,
there's
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