"Jim Shorney" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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On Sun, 11 Dec 2005 15:36:01 -0500, [EMAIL PROTECTED] wrote:
>I can see the MFJ method as a possibility. The 5 Ohm load provide purely
>resistive loa
"Jim Pruitt" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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I am trying to repair a R4B and thought the PTO was the problem. It turns
out that the pto is not the problem but the PTO range is 4.60mhz to 5.500
mhz.
Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Jay -
OK, we agree I've only see two fail in the last 40+ years working
with Drakes. One open filament and one just about no emission. There
w
Garey -
It's a matter of semantics. :-))
I usually rate them as EXACT, GOOD or Doesn't Exist.
In a pinch, the substitutes listed will work, but certainly not as well
as the 6HS6 which is far superior than the subs mentioned.
Yes, I have tried them and do work with degraded performance...I'm an old
Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Jay -
Have you actually used any of those subs in an R-4B or other receiver?
I'm curious, because I've not had much luck with any of them. In the
I think that you can short one-end and using good GDO, form
a small loop at one end and loosely couple the GDO by inserting it
into loop measure it as though it is a quarter wave long, but at
half the frequency.
Use the following formula:
V = (length in feet of the cable x frequency)/246
V= veloc
Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Jason -
Unfortunately, there isn't a "good" substitute for the 6HS6. The 6AU6A
will work, but it's only about half the transconductance (gain) of the
The following tubes may be used as a "Good"
substitute for a 6HS6 but NOT as an exact substitute.
6AG5
6AU6
6BA6
6CB6
My advice...Locate some more 6HS6 units.
73,
Jay/AF2C
At 02:43 PM 12/11/05 -0500, you wrote:
[EMAIL PROTECTED] made an utterance
to the drakelist gang
[EMAIL PROTECTED] made an utterance to the drakelist gang
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hi,
I find myself with only 2 good 6HS6 spares - just wondering if there are
replacements or equivalents for this tube or should I look for 6HS6 only.
This is for my R
"Jim Shorney" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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That doesn't sound quite right, but the MFJ instructions seem a little
wierd.
On Sun, 11 Dec 2005 09:31:29 -0700, Peter Hoon wrote:
>Connect one end of
"Peter Hoon" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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> Dan,
> You are correct, and I will likely do that next hamfest. In the mean time
> it just seems like an interesting puzzle. Guess it is the Enginee
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