[Drakelist] R4 impedance

[Neil M Califano]

What is speaker impedance in the R4 series?  

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[Drakelist] Looking for Crystals

[Kevin Nathan]

Hi All,
 
I am wondering if anyone on the list happens to have the HC6 type crystal
that would fit the front panel  socket on the T-4XC for either 3870 AM or
3885 AM.  I know this is a long shot but thought I'd try.
 
Take care all and very 73.
 
 
Kevin :)
Amateur Radio:  K7RX
 
 
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Re: [Drakelist] Transmitting converters

[PonyTom]

Hello everyone,
 
  Boy was that fun. each time trouble rares it's ugly head, I learn  new 
stuff about my Drakes. No equipment failure, just operator head space.
  The relay jack on the back of the AC-4 not only keys an amplifier  
connected to it, but it can work the other way, if it is shorted, it will cause 
 
just the problem I was having. What happened was the cable to my amp got  
pinched. Not exactly the first place I thought of looking to find a fault.
 
Thanks for being concerned about my  problems. Tom, WD8JPP
 
 
In a message dated 5/5/2011 10:03:35 P.M. Eastern Daylight Time,  
k4...@mindspring.com writes:

I keep  thinking of things   :-)

Do you have the INJ and EXC  cables connected?   AGC??

I doubt it's an oscillation, since  both react in the same way.  Not 
likely a bad Driver tube  either..

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



pony...@aol.com wrote:
>   Back again,
>   As Soon as I got my TR-3 working, my TC-6, and  TC-2 started acting 
> up. I have them connected to my "C" station. The  problem is that as 
> soon as I power either TC unit, the plate amp  meter goes up to aprox 
> 100 ma., and it wipes out my receive. I've  been checking all the 
> interconnect cables, Did the Heath thing to the  AC-4. I can't find 
> anything common to both the TC-6, and TC-2 that  could be doing this 
> dastardly deed. I even disconnected all the  cables except the power, 
> and it still does what I must guess is a  self oscillating problem. Is 
> it possible that the driver tube could  be gassy?
>Thanks for reading this   Tom, WD8JPP
> 

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Re: [Drakelist] two drake questions

[Curt Nixon]

Yes...

All of the Drake PTO's need a good ground on the slug shft.  Dont have a 
C version but I think it is the same construction.  It was a Drake field 
mod if I recall.I think if you google Drake PTO ground braid or similar, 
you will get a picture of the mod.  A little desoldering wick braid from 
the vertical slider to the frame does the trick.  I'll send a pic direct.



John Hudson wrote:

Al does this also apply to the R4C receiver? My VFO is also jumpy..

Thanks,

John, WA6HYQ


- Original Message -
From: drakelist-boun...@zerobeat.net 
To: mike bryce 
Cc: Drakelist@zerobeat.net 
Sent: Sat May 07 17:10:48 2011
Subject: Re: [Drakelist] two drake questions

Hi Mike,
	The PTO could well be a poor ground of the PTO shaft.  Be sure the 
spring is there on the slotted lever that comes up from the shaft and 
rides on a rod.  The spring holds it against one side but if the rod is 
cruddy there's an intermittent ground.  A common fix is to solder a 
small braid to the top of that lever and the other end goes to ground on 
the can, or close by.
	I believe the TR-3 S-mtr zero pot is the rear one of the 3 on the side 
of the chassis.

73,

Al, W8UT
www.boatanchors.org
www.hammarlund.info

"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole

On 5/7/2011 6:50 PM, mike bryce wrote:
  

Gang!

First off, I have a tr4 that works just fine, good output, receives
fine, but...

the pto is 'jumpy' as you tune through a station. It doesn't drift. So,
what's the problem?

And,
anyone know where the s-meter zero adjust is on a tr-3?

mike


Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||o
"If the facts don't fit the theory, change the facts."
Albert Einstein



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[Drakelist] WTB: 160 xtal for R4C - 12.9 Mhz xtal

[Rich Hallman - N7TR]

Looking for a 12.9 mhz xtal for the R4 / T4.  

 

I know I can get the 12.6 mhz xtal, but looking for a 12.9 so the 1.8
mhz scale starts at 0 on the tuning dial.

 

Thanks...

 

Rich N7TR

ex KI3V, N3AMK, WB3JOV

www.n7tr.com  

Telnet: dxc.n7tr.com N7TR DXCluster

 

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