[drakelist] 6HS6 replacement/equivalent

2005-12-11 Thread jsb

[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-4B.

Thanks!

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73 Jason N1SU
http://n1su.com/
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Re: [drakelist] 6HS6 replacement/equivalent

2005-12-11 Thread af2c

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
--
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-4B.
Thanks!
--
73 Jason N1SU
http://n1su.com/
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Re: [drakelist] 6HS6 replacement/equivalent

2005-12-11 Thread Garey Barrell


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 
6HS6.  This can cause some difficulties with AGC and gain distribution 
in the receiver.  They ARE getting expensive, probably a combination of 
their unique capabilities and small production quantities.  The good 
news is that they are pretty reliable and long lived.   I've only had to 
replace two over the years, one with an open filament and one that was 
just flat.   One or two good spares, preferably RCA or Sylvania 
branded, will probably outlast the rest of the receiver and/or it's use 
to you.  In a pinch, you can sub a 6AU6A, but 6HS6s aren't going to get 
any cheaper or more available!


73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
http://www.k4oah.com



[EMAIL PROTECTED] wrote:


[EMAIL PROTECTED] made an utterance to the drakelist gang
--

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-4B.

Thanks!

--
73 Jason N1SU
http://n1su.com/
 


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Re: [drakelist] 6HS6 replacement/equivalent

2005-12-11 Thread Garey Barrell


Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang
--
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 
Premixer stage they all give a slightly lower output but aren't too bad, 
but in the First Mixer the gain and AGC characteristics are altered 
significantly.


Based on my experience, I would consider them fair subs at best!  :-)

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
http://www.k4oah.com



[EMAIL PROTECTED] wrote:

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
--

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-4B.

Thanks!

--
73 Jason N1SU
http://n1su.com/




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Re: [drakelist] 6HS6 replacement/equivalent

2005-12-11 Thread af2c

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
tube swapper from way back. ;-)
I have never seen a 6HS6 bite the dust. Again, just to feel safe,
buy a spare or two...As I stated in my original message.
I'm kinda partial to Sylvania, Mullard and Amperex.

73,
Jay/AF2C

At 04:04 PM 12/11/05 -0500, you wrote:
Garey Barrell
[EMAIL PROTECTED] made an utterance to the drakelist 
gang
--
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 Premixer stage they all give a slightly lower output but aren't
too bad, but in the First Mixer the gain and AGC characteristics are
altered significantly.
Based on my experience, I would consider them fair subs at
best! :-)
73, Garey - K4OAH
Atlanta
Drake C-Line Service Manual
http://www.k4oah.com

[EMAIL PROTECTED] wrote:
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
--
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-4B.
Thanks!
--
73 Jason N1SU
http://n1su.com/
--
Submissions:
drakelist@www.zerobeat.net
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[EMAIL PROTECTED] - unsubscribe drakelist in body
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Re: [drakelist] 6HS6 replacement/equivalent

2005-12-11 Thread Garey Barrell


Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang
--
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 
wasn't anything rattling around in the latter one, so don't really know 
what happened to it.  It's the only modern tube that I recall going 
that dead and still have a lit filament!  :-)


I wonder if Heath had similar good luck with them.?   Guess they were 
designed to run all day in a very hot TV set, so an R-4(any) was 
probably a vacation.   Certainly a more reliable tube than the 6EJ7 !!


73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
http://www.k4oah.com



[EMAIL PROTECTED] wrote:


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 tube swapper from way back. ;-)


I have never seen a 6HS6 bite the dust.  Again, just to feel safe, buy 
a spare or two...As I stated in my original message.


I'm kinda partial to Sylvania, Mullard and Amperex.



73,
Jay/AF2C


At 04:04 PM 12/11/05 -0500, you wrote:

Garey Barrell [EMAIL PROTECTED] made an utterance to the 
drakelist gang

--
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 Premixer stage they all give a slightly lower output but aren't 
too bad, but in the First Mixer the gain and AGC characteristics are 
altered significantly.


Based on my experience, I would consider them fair subs at best!  :-)

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
http://www.k4oah.com http://www.k4oah.com/



[EMAIL PROTECTED] wrote:

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
--

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-4B.

Thanks!

--
73 Jason N1SU
http://n1su.com/



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