The 2-NT manual, page 2, shows a schematic of hooking up the 2-NT with an
R-4A. I assume hooking up to the R-4C would be something similar.
Unfortunately, it is not exactly plug'n'play. The diagram shows the 2-NT's
sidetone cable connecting "To Pins 2 or 5 of V7, 6EH5 or to arm of AF Gain
Control"
I ran the output from the HG-10B's phono jack through 2' piece of rg-58 coax
to an old crystal holder. I took a non-ham band crystal, unscrewed the metal
plate, took out the crystal, drilled a hole in the end for the coax,
soldered the wires, and put the plate back on. It looks neat and makes it
e
My MN-2000 with original paint has the rough surface paint.
Tom N7TM
On 1/22/07, Mike Rowlands <[EMAIL PROTECTED]> wrote:
While we are talking about Drake paint finishes, would somebody please
confirm that MN-2000 was originally shipped with a smooth finish?
Thanks,
Mike
VA3MR/G3NKR
The paint on my TR-3 is smooth, too. The cabinet definitely does *not* look
like it's been repainted.
Tom n7tm
On 1/19/07, LeMoine Family <[EMAIL PROTECTED]> wrote:
"LeMoine Family" <[EMAIL PROTECTED]> made an utterance to the
drakelist gang
---
B+ will be pulled up
> toward the HV. Let us know what you find.
>
> Ken, WA2LBI
> >
> > On 1/14/07, Tom Taylor wrote:
> > > Still working on the AC-3... The drakelist wisdom was the 20k load
resistor
> > > didn't present enough of a load, compared
s I replaced the two 100
uf caps with 330 uf caps and the 80 uf cap with a 120 uf. That's what I had
in my junk box. Why is that supply so over-voltage now? Perhaps I have a
wiring error, though I carefully checked for errors.
Thanks,
Tom n7tm
On 12/20/06, Tom Taylor <[EMAIL PROTECTED]>
Hey Garey,
Perhaps I can help. I have a TR-4 s/n 19651. The accompanying manual
(original, not a copy) has no schematic number on it underneath the block
letters "SCHEMATIC DIAGRAM MODEL TR-4 TRANSCEIVER". Perhaps it's older than
the numbering system used on later manuals.
Another TR-4 s/n 31985
expensive. As far as I'm concerned I would avoid the original
AC-3
in daily use. You wisely chose to use it on the test bench instead.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donnie Garrett
Sent: Tuesday, December 12, 2006 5:27 AM
To: To
s as my test bench supply and is not used in my
station.
Hope this helps, Don / WA9TGT
On 12/11/06, Tom Taylor <[EMAIL PROTECTED]> wrote:
> I have a number of Drake A, B, and C twin combos. I decided to upgrade
all the power supplies with AC-4R boards. Since most of the caps are now 30
I have a number of Drake A, B, and C twin combos. I decided to upgrade all
the power supplies with AC-4R boards. Since most of the caps are now 30 to
40 years old, I don't want to risk a bias supply going out and ruining the
finals or some short ruining the transformers. I order a bunch of blank
b
for it originally was to improve the regulation of the HV.
73, Garey - K4OAH
Atlanta
Drake 2-B, 4-B & C-Line Service Supplement CDs
Tom Taylor wrote:
> I have a number of Drake A, B, and C twin combos. I decided to upgrade
> all the power supplies with AC-4R boards. Since most of the caps
Here's how I homebrewed an AC-4 relay connector:
http://www.zerobeat.net/drakelist/voxrelayplug.html
Tom
On 11/29/06, Clair Truax <[EMAIL PROTECTED]> wrote:
Clair Truax <[EMAIL PROTECTED]> made an utterance to the drakelist gang
an cause this.What is the voltage at the top of C48? (The +12V power supply filter cap)
73, Garey - K4OAHAtlantaDrake 2-B, 4-B & C-Line Service CDs<www.k4oah.com>Tom Taylor wrote:> I tried swapping several 12BA6's (V5) at Garey's suggestion. All
> caused me to recalibrate t
om what's listed in the chart.Tom n7tmOn 10/11/06,
Jason Buchanan <[EMAIL PROTECTED]> wrote:
Tom Taylor wrote:> The receiver receives well, but the S-meter is extremely stingy. A> very loud SW broadcast station may only read S5.>Will be interested to hear what you find out.
My 2-C receiver became deaf after a couple of months of not turning it on. I took the covers off and carefully deoxit'd the bandswitch and other wafers. That didn't have any effect. Then I wiggled each tube and found a culprit. I deoxit'd the tube sockets and that did the trick. I've never aligned
Is there a way to know when the bias supply has died? Suppose you're sitting in front of the radio, it appears to be operating normally, and then the bias suddenly disappears (i.e. diode opens, cap goes out, etc.). At this point, you're simply listening to the receiver. What indication would you ge
I guess I’ve been really careless
with my use of DeOxit because I haven’t been careful at all when spraying
the various wafers of the switches underneath. Perhaps I’ve taken decades
off the long term life of the radios, but in the past ten years, I haven’t
noticed any degradation. Ten yea
"Tom Taylor \(MSTV\)" <[EMAIL PROTECTED]> made an utterance to the drakelist
gang
--
What I do is take an old non-ham-band crystal of the correct size and
unscrew the little top cover plate. I remove the old cr
"Tom Taylor \(MSTV\)" <[EMAIL PROTECTED]> made an utterance to the drakelist
gang
--
Speaking of Drake compatible electronic keyers, I recently built a PK-4
SSR keyer ($23) from Jackson Ha
A TR-4 is better for CW than a TR-3
because of auto-break-in. In other words, when you put a TR-4 in CW mode, you
can still hear the receiver. When you key the transmitter, a relay closes and
at the end of keying, depending upon delay, the transceiver switches back into
receive mode. When y
I followed Garey’s suggestion on his
website for the pins and from his email, realize the brass tubing is 3/32”,
not 3/16”
Tom
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Tom Taylor (MSTV)
Sent: Monday, October 24, 2005
2:08 PM
To: George Bennett
Just last week I made a cable with two
homemade vox plugs on either end to connect an AC-4 to an L-4B. The plugs fit
and work perfectly. Here are the steps I used:
1- buy 3/16” brass tubing from a hobby store
2- cut ¾” sections of the tube with a Dremel chucked with a
cut-
"Tom Taylor \(MSTV\)" <[EMAIL PROTECTED]> made an utterance to the drakelist
gang
--
Thanks to all who responded with the tip about the L-4B's fan's oil
ports. A couple drops of oil in each port im
"Tom Taylor \(MSTV\)" <[EMAIL PROTECTED]> made an utterance to the drakelist
gang
--
Drake Aficionados,
I'm putting a recently purchased L-4B back on the air after the amp has
experienced an unknown period
"Tom Taylor \(MSTV\)" <[EMAIL PROTECTED]> made an utterance to the drakelist
gang
--
An intermittent problem I see with my R-4 & T-4 (the xmtr without a VFO)
pair is after transmitting, the receiver is often
Sounds like it's time to get the Discovery Channel to
sponser a diving expedition to recover those radios! (like they did with Gus
Grissom's Liberty Bell) The documentary would be fantastic; at least to those of
us on this list :-)
Tom N7TM
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTE
26 matches
Mail list logo
