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Compass Amplifier Tubes

 
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Ernie



Joined: 11 Jan 2006
Posts: 513

PostPosted: Sat Jul 05, 2014 9:05 am    Post subject: Compass Amplifier Tubes Reply with quote

I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.

Any help would be appreciated.
I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.

--
Ernie

Nanchang CJ-6A



[quote][b]


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PostPosted: Sat Jul 05, 2014 9:40 am    Post subject: Compass Amplifier Tubes Reply with quote

Ernie,Actually the truth is that it is normally NOT a bad tube.  It is normally just dirty or corroded connectors.  Use a SS or brass brush to clean the contractors, 90% of the time if fixes the problem.


I know of no tube available here in the US which will replace those in the FL-3.  If anyone out there has this information please share it as these tubes are very hard to find.  In fact I have not been successful in the last 3 orders to China, I have been able to buy only new and overhauled FL-3s, but no tubes.


Doug

On Sat, Jul 5, 2014 at 10:05 AM, Ernest Martinez <erniel29(at)gmail.com (erniel29(at)gmail.com)> wrote:
[quote]I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.

Any help would be appreciated.
I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.

--
Ernie

Nanchang CJ-6A



Quote:


et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution

[b]


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Ernie



Joined: 11 Jan 2006
Posts: 513

PostPosted: Sat Jul 05, 2014 10:02 am    Post subject: Compass Amplifier Tubes Reply with quote

I'm working on the tubes now. I was able to find the 6k8, but not the 6x6, but then again, I may have read it wrong. If you know the proper lettering I'll do the research. I know that I did source tubes on my old CJ, and there were American equivalents. Theres nothing much more to go wrong in these amps.

Thanks

On Sat, Jul 5, 2014 at 1:39 PM, doug sapp <dougsappllc(at)gmail.com (dougsappllc(at)gmail.com)> wrote:
Quote:
Ernie,Actually the truth is that it is normally NOT a bad tube.  It is normally just dirty or corroded connectors.  Use a SS or brass brush to clean the contractors, 90% of the time if fixes the problem.


I know of no tube available here in the US which will replace those in the FL-3.  If anyone out there has this information please share it as these tubes are very hard to find.  In fact I have not been successful in the last 3 orders to China, I have been able to buy only new and overhauled FL-3s, but no tubes.


Doug

On Sat, Jul 5, 2014 at 10:05 AM, Ernest Martinez <erniel29(at)gmail.com (erniel29(at)gmail.com)> wrote:

Quote:
I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.

Any help would be appreciated.
I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.

--
Ernie

Nanchang CJ-6A




Quote:


et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution


Quote:


et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution





--
Ernie

Nanchang CJ-6A
N6315T


[quote][b]


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Ernie



Joined: 11 Jan 2006
Posts: 513

PostPosted: Sun Jul 06, 2014 7:34 am    Post subject: Compass Amplifier Tubes Reply with quote

Re-seating the tubes fixed the problem. I have a source for one of the tubes. I do not believe that the other one is a 6X6, since that tube really doesn't exist. It's either a 6k6 or a 6x?.

If anyone knows about tube nomenclature maybe you can help.
Thanks

On Sat, Jul 5, 2014 at 1:59 PM, Ernest Martinez <erniel29(at)gmail.com (erniel29(at)gmail.com)> wrote:
Quote:
I'm working on the tubes now. I was able to find the 6k8, but not the 6x6, but then again, I may have read it wrong. If you know the proper lettering I'll do the research. I know that I did source tubes on my old CJ, and there were American equivalents. Theres nothing much more to go wrong in these amps.

Thanks

On Sat, Jul 5, 2014 at 1:39 PM, doug sapp <dougsappllc(at)gmail.com (dougsappllc(at)gmail.com)> wrote:
Quote:
Ernie,Actually the truth is that it is normally NOT a bad tube.  It is normally just dirty or corroded connectors.  Use a SS or brass brush to clean the contractors, 90% of the time if fixes the problem.


I know of no tube available here in the US which will replace those in the FL-3.  If anyone out there has this information please share it as these tubes are very hard to find.  In fact I have not been successful in the last 3 orders to China, I have been able to buy only new and overhauled FL-3s, but no tubes.


Doug

On Sat, Jul 5, 2014 at 10:05 AM, Ernest Martinez <erniel29(at)gmail.com (erniel29(at)gmail.com)> wrote:

Quote:
I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.

Any help would be appreciated.
I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.

--
Ernie

Nanchang CJ-6A




Quote:


et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution


Quote:


et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution





--
Ernie

Nanchang CJ-6A
N6315T




--
Ernie

Nanchang CJ-6A


[quote][b]


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PostPosted: Mon Jul 07, 2014 9:28 am    Post subject: Compass Amplifier Tubes Reply with quote

RCA 6H6 works

From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Saturday, July 05, 2014 10:05 AM
To: yak-list
Subject: Compass Amplifier Tubes


I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.


Any help would be appreciated.



I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.


--
Ernie


Nanchang CJ-6A





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Ernie



Joined: 11 Jan 2006
Posts: 513

PostPosted: Mon Jul 07, 2014 11:00 am    Post subject: Compass Amplifier Tubes Reply with quote

Yes the 6H6 works for the 6X6c but trying to figure out what to use for whats labeled 6K8 or 6zh176 (zh is represented by mirror image k's back to back in Cryllic).




On Mon, Jul 7, 2014 at 1:27 PM, Gill Gutierrez <gill.g(at)gpimail.com (gill.g(at)gpimail.com)> wrote:
Quote:

RCA 6H6 works
 
From: owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com) [mailto:owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com)] On Behalf Of Ernest Martinez
Sent: Saturday, July 05, 2014 10:05 AM
To: yak-list
Subject: Compass Amplifier Tubes

 
I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.
 

Any help would be appreciated.

 

I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.
 

--
Ernie
 

Nanchang CJ-6A

 

 

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Ernie

Nanchang CJ-6A


[quote][b]


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PostPosted: Mon Jul 07, 2014 12:39 pm    Post subject: Compass Amplifier Tubes Reply with quote

Tube Depot has 6K8 tubes for <$9

From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Monday, July 07, 2014 12:00 PM
To: yak-list
Subject: Re: Compass Amplifier Tubes


Yes the 6H6 works for the 6X6c but trying to figure out what to use for whats labeled 6K8 or 6zh176 (zh is represented by mirror image k's back to back in Cryllic).




On Mon, Jul 7, 2014 at 1:27 PM, Gill Gutierrez <gill.g(at)gpimail.com (gill.g(at)gpimail.com)> wrote:
RCA 6H6 works

From: owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com) [mailto:owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com)] On Behalf Of Ernest Martinez
Sent: Saturday, July 05, 2014 10:05 AM
To: yak-list
Subject: Compass Amplifier Tubes


I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.


Any help would be appreciated.



I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.


--
Ernie


Nanchang CJ-6A





Quote:
http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhttp://www.matronics.com/contribution

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et="_blank">http://www.matronics.com/Navigator?Yak-List
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--
Ernie


Nanchang CJ-6A


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Ernie



Joined: 11 Jan 2006
Posts: 513

PostPosted: Mon Jul 07, 2014 12:50 pm    Post subject: Compass Amplifier Tubes Reply with quote

6k8 is the Chinese/russiandesignator, it's not aUS 6k8

On Monday, July 7, 2014, Gill Gutierrez <gill.g(at)gpimail.com (gill.g(at)gpimail.com)> wrote:
Quote:

Tube Depot has 6K8 tubes for <$9
 
From: [url=javascript:_e(%7B%7D,'cvml','owner-yak-list-server(at)matronics.com');]owner-yak-list-server(at)matronics.com[/url] [mailto:[url=javascript:_e(%7B%7D,'cvml','owner-yak-list-server(at)matronics.com');]owner-yak-list-server(at)matronics.com[/url]] On Behalf Of Ernest Martinez
Sent: Monday, July 07, 2014 12:00 PM
To: yak-list
Subject: Re: Compass Amplifier Tubes

 
Yes the 6H6 works for the 6X6c but trying to figure out what to use for whats labeled 6K8 or 6zh176 (zh is represented by mirror image k's back to back in Cryllic).
 

 
 
On Mon, Jul 7, 2014 at 1:27 PM, Gill Gutierrez <[url=javascript:_e(%7B%7D,'cvml','gill.g(at)gpimail.com');]gill.g(at)gpimail.com[/url]> wrote:
RCA 6H6 works
 
From: [url=javascript:_e(%7B%7D,'cvml','owner-yak-list-server(at)matronics.com');]owner-yak-list-server(at)matronics.com[/url] [mailto:[url=javascript:_e(%7B%7D,'cvml','owner-yak-list-server(at)matronics.com');]owner-yak-list-server(at)matronics.com[/url]] On Behalf Of Ernest Martinez
Sent: Saturday, July 05, 2014 10:05 AM
To: yak-list
Subject: Compass Amplifier Tubes

 
I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.
 

Any help would be appreciated.

 

I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.
 

--
Ernie
 

Nanchang CJ-6A

 

 

Quote:
   http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhttp://www.matronics.com/contribution 

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  et="_blank">http://www.matronics.com/Navigator?Yak-List 
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--
Ernie
 

Nanchang CJ-6A

 
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--
Ernie

Nanchang CJ-6A


[quote][b]


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Ernie



Joined: 11 Jan 2006
Posts: 513

PostPosted: Wed Jul 09, 2014 8:39 am    Post subject: Compass Amplifier Tubes Reply with quote

These are the tubes for the FL-3 Amplifier.

6H6P and 6J8P
They are common, and easily found on Ebay for about $3.00 each.
Ernie

On Mon, Jul 7, 2014 at 4:50 PM, Ernest Martinez <erniel29(at)gmail.com (erniel29(at)gmail.com)> wrote:
[quote]6k8 is the Chinese/russiandesignator, it's not aUS 6k8

On Monday, July 7, 2014, Gill Gutierrez <gill.g(at)gpimail.com (gill.g(at)gpimail.com)> wrote:
Quote:

Tube Depot has 6K8 tubes for <$9
 
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Monday, July 07, 2014 12:00 PM
To: yak-list
Subject: Re: Compass Amplifier Tubes

 
Yes the 6H6 works for the 6X6c but trying to figure out what to use for whats labeled 6K8 or 6zh176 (zh is represented by mirror image k's back to back in Cryllic).
 

 
 
On Mon, Jul 7, 2014 at 1:27 PM, Gill Gutierrez <gill.g(at)gpimail.com> wrote:
RCA 6H6 works
 
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Saturday, July 05, 2014 10:05 AM
To: yak-list
Subject: Compass Amplifier Tubes

 
I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.
 

Any help would be appreciated.

 

I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.
 

--
Ernie
 

Nanchang CJ-6A

 

 

Quote:
   http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhttp://www.matronics.com/contribution 

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  et="_blank">http://www.matronics.com/Navigator?Yak-List 
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--
Ernie
 

Nanchang CJ-6A

 
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--
Ernie

Nanchang CJ-6A


[b]


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PostPosted: Wed Jul 09, 2014 9:26 am    Post subject: Compass Amplifier Tubes Reply with quote

Thanks Ernie, now I know where to send customers who are in need of replacement tubes.  Previously the only option was to buy a complete new FL-3 unit.

The list works only if we are all willing to share our knowledge.  


Thanks again.
Doug

On Wed, Jul 9, 2014 at 9:37 AM, Ernest Martinez <erniel29(at)gmail.com (erniel29(at)gmail.com)> wrote:
[quote]These are the tubes for the FL-3 Amplifier.

6H6P and 6J8P
They are common, and easily found on Ebay for about $3.00 each.


Ernie

On Mon, Jul 7, 2014 at 4:50 PM, Ernest Martinez <erniel29(at)gmail.com (erniel29(at)gmail.com)> wrote:
Quote:
6k8 is the Chinese/russiandesignator, it's not aUS 6k8

On Monday, July 7, 2014, Gill Gutierrez <gill.g(at)gpimail.com (gill.g(at)gpimail.com)> wrote:
Quote:

Tube Depot has 6K8 tubes for <$9
 
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Monday, July 07, 2014 12:00 PM
To: yak-list
Subject: Re: Compass Amplifier Tubes

 
Yes the 6H6 works for the 6X6c but trying to figure out what to use for whats labeled 6K8 or 6zh176 (zh is represented by mirror image k's back to back in Cryllic).
 

 
 
On Mon, Jul 7, 2014 at 1:27 PM, Gill Gutierrez <gill.g(at)gpimail.com> wrote:
RCA 6H6 works
 
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Saturday, July 05, 2014 10:05 AM
To: yak-list
Subject: Compass Amplifier Tubes

 
I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.
 

Any help would be appreciated.

 

I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.
 

--
Ernie
 

Nanchang CJ-6A

 

 

Quote:
   http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhttp://www.matronics.com/contribution 

Quote:
  et="_blank">http://www.matronics.com/Navigator?Yak-List 
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--
Ernie
 

Nanchang CJ-6A

 
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--
Ernie

Nanchang CJ-6A


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Ernie



Joined: 11 Jan 2006
Posts: 513

PostPosted: Wed Jul 09, 2014 12:42 pm    Post subject: Compass Amplifier Tubes Reply with quote

Update

The 6J8P is a Chinese tube, J grade means military. The American equivalent is 6SJ7.
Ernie

On Wednesday, July 9, 2014, doug sapp <dougsappllc(at)gmail.com (dougsappllc(at)gmail.com)> wrote:
[quote]Thanks Ernie, now I know where to send customers who are in need of replacement tubes.  Previously the only option was to buy a complete new FL-3 unit.

The list works only if we are all willing to share our knowledge.  


Thanks again.
Doug

On Wed, Jul 9, 2014 at 9:37 AM, Ernest Martinez <[url=javascript:_e(%7B%7D,'cvml','erniel29(at)gmail.com');]erniel29(at)gmail.com[/url]> wrote:
Quote:
These are the tubes for the FL-3 Amplifier.

6H6P and 6J8P
They are common, and easily found on Ebay for about $3.00 each.


Ernie

On Mon, Jul 7, 2014 at 4:50 PM, Ernest Martinez <[url=javascript:_e(%7B%7D,'cvml','erniel29(at)gmail.com');]erniel29(at)gmail.com[/url]> wrote:
Quote:
6k8 is the Chinese/russiandesignator, it's not aUS 6k8

On Monday, July 7, 2014, Gill Gutierrez <[url=javascript:_e(%7B%7D,'cvml','gill.g(at)gpimail.com');]gill.g(at)gpimail.com[/url]> wrote:
Quote:

Tube Depot has 6K8 tubes for <$9
 
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Monday, July 07, 2014 12:00 PM
To: yak-list
Subject: Re: Compass Amplifier Tubes

 
Yes the 6H6 works for the 6X6c but trying to figure out what to use for whats labeled 6K8 or 6zh176 (zh is represented by mirror image k's back to back in Cryllic).
 

 
 
On Mon, Jul 7, 2014 at 1:27 PM, Gill Gutierrez <gill.g(at)gpimail.com> wrote:
RCA 6H6 works
 
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Ernest Martinez
Sent: Saturday, July 05, 2014 10:05 AM
To: yak-list
Subject: Compass Amplifier Tubes

 
I've replaced the tubes in the compass amplifier, but I can't remember now what the equivalents were. The tube base says 6x6 and 6k8 but a google search finds nothing easily found for the 6x6. Underneath is it says 6 (2 k's back to back) 6c I'm not sure if that back to back k symbol is meant to be translated as a K.
 

Any help would be appreciated.

 

I know I an just buy the whole amp, but I've seen this symptom before where the needle just goes round and round, and tube replacement fixed it.
 

--
Ernie
 

Nanchang CJ-6A

 

 

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--
Ernie
 

Nanchang CJ-6A

 
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--
Ernie

Nanchang CJ-6A


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