Frank -
First, be sure to connect your counter to Pin 19 rather than Pin 21.
You may be able to get enough shift by changing C1006 to 47 pF.
Sometimes spreading or compressing the turns on L1004 will buy a little
more shift. Be sure the 10R bus voltage is at least 9.97V. It's also
Anyone out there have a source for the screws that hold the MS4 power supply to
the AC4 cabinet? Think the heads are covered with rubber. If not,how about the
size for them?
Also am in need of a 100khz calibrator crystal.
Thanks
Rusty
WB9FIU
I use both the Hickok 6000A and the BK Dyna-Jet 707. They work well, and the
vast majority of tubes I have pre-tested before restoring a Drake have
performed very well.
Mark
N5KAE
- Original Message -
From: Bill Maddock
To: drakelist@www.zerobeat.net
Sent: Sunday,
Bill Jackson [EMAIL PROTECTED] made an utterance to the drakelist gang
--
If memory serves me, the 444 was grey in color and was a high impedance
microphone. The 444D is black in color and is dual impedance, both high and
low.
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
--
On Sun, 10 Dec 2006 13:05:14 -0500, Chuck Wyatt wrote:
Well after reading Ken's message last night, I was inspired to check it
further. The element DOES
The good ones cost an arm and a leg. Hickok and BK are probably the ones
you'll see most often referred to as good ones. Most radio and TV repair
businesses used BK tube testers. Hickok made tube testers for the military
as the TV-7 series. The very best ones do their testing at frequencies far
Ron Wagner [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Well I just opened my 444D and the element is about 1 7/8 inch diameter.
Keep in mind that the cavity that an element sits in also had an effect on
tonal
Dino Papas [EMAIL PROTECTED] made an utterance to the drakelist gang
--
The original screws that hold the AC-4 in the back of the MS-4 (or
RV-4 series remote VFOs) do in fact have a hemispherical rubber top
to them with the
Chuck Wyatt [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Hi Jim,
Well after reading Ken's message last night, I was inspired to check it
further. The element DOES give output, and may just have been my prejudice
Chuck Wyatt [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Ken Sands suggested double-checking that EV element, which I did and it
appears good. Seems to drive the TR-3 just great!
Thanks to all for the
Gents,
I have lost output on my TR7 on 10m all other bands are OK with full power
out, only 10 that seems to be the problem, any ideas where to look first?
Frank
VK5MFW
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
--
On Sat, 9 Dec 2006 22:16:20 -0600, Bill Jackson wrote:
If memory serves me, the 444 was grey in color and was a high impedance
microphone. The 444D is
Rob,
The original feet for the AC-4, when used stand alone, had a 6-32 stud
projecting from a rubber bumper that protected the table top. These were
removed when the AC-4 was inserted in a MS-4 speaker cabinet. The feet were
then used to secure the AC-4 to the MS-4 cabinet which had its own
I am looking for a good condition used tube tester to keep my drakes
in tip top shape! What are the best ones to buy for our radios? Is Heathkit
ok? How about BK? Does anyone have one that they would like to sell?
Thanks and Merry Christmas,
Bill N4ZI Munford, TN
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
--
On Sun, 10 Dec 2006 16:19:38 -0500, Chuck Wyatt wrote:
Now that I've rewired the EV-630 switch to work with PTT, I'm getting a hum
through the speaker when
Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Tom -
Yeah, that's typical. You're taking the right approach, since a failure
in the Bias supply can take out more than just the finals, even if the
16 matches
Mail list logo
